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  • 7/23/2019 Subaru Legacy

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    FUJI HEAVY INDUSTRIES LTD. G2320GE7

    2004 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

    BODY SECTION

    This service manual has been prepared

    to provide SUBARU service personnelwith the necessary information and data

    for the correct maintenance and repairof SUBARU vehicles.

    This manual includes the proceduresfor maintenance, disassembling, reas-sembling, inspection and adjustment of

    components and diagnostics for guid-ance of experienced mechanics.

    Please peruse and utilize this manualfully to ensure complete repair work forsatisfying our customers by keeping

    their vehicle in optimum condition.When replacement of parts during

    repair work is needed, be sure to useSUBARU genuine parts.

    All information, illustration and specifi-cations contained in this manual are

    based on the latest product informationavailable at the time of publication

    approval.

    HVAC SYSTEM

    (HEATER, VENTILATOR AND A/C)AC

    HVAC SYSTEM (AUTO A/C)

    (DIAGNOSTICS)AC(diag)

    AIRBAG SYSTEM AB

    AIRBAG SYSTEM (DIAGNOSTICS) AB(diag)

    SEAT BELT SYSTEM SB

    LIGHTING SYSTEM LI

    WIPER AND WASHER SYSTEMS WW

    ENTERTAINMENT ET

    COMMUNICATION SYSTEM COM

    GLASS/WINDOWS/MIRRORS GW

    BODY STRUCTURE BS

    INSTRUMENTATION/DRIVER INFO IDI

    SEATS SE

    SECURITY AND LOCKS SL

    SUNROOF/T-TOP/CONVERTIBLE TOP

    (SUNROOF)SR

    EXTERIOR/INTERIOR TRIM EI

    EXTERIOR BODY PANELS EB

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    2003 LEGACY SERVICE MANUAL QUICK REFERENCE INDEX

    BODY SECTION

    G2320GE7

    CRUISE CONTROL SYSTEM CC

    CRUISE CONTROL SYSTEM(DIAGNOSTICS)

    CC(diag)

    IMMOBILIZER (DIAGNOSTICS) IM(diag)

    LAN SYSTEM (DIAGNOSTICS) LAN(diag)

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    AIRBAG SYSTEM (DIAGNOSTICS)

    AB(diag)Page1. Basic Diagnostic Procedure........................................................................22. Check List for Interview...............................................................................33. General Description ....................................................................................44. Electrical Component Location .................................................................185. Airbag Control Module I/O Signal..............................................................226. Airbag Connector ......................................................................................267. Airbag Warning Light Illumination Pattern.................................................298. Read Diagnostic Trouble Code (DTC) ......................................................309. Inspection Mode........................................................................................31

    10. Clear Memory Mode..................................................................................3211. Airbag Warning Light Failure.....................................................................3312. List of Diagnostic Trouble Code (DTC) .....................................................3713. Diagnostic Chart with Trouble Code .........................................................41

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    AIRBAG SYSTEM (DIAGNOSTICS)Basic Diagnostic Procedure

    1. Basic Diagnostic Procedure

    A: PROCEDURE

    Step Check Yes No

    1 READ DTC.

    Is the normal code detected? Finish the diagno-

    sis.

    Go to step 2.

    2 READ DTC.

    Is DTC displayed? Go to step 3. Go to Airbag

    Warning Light Fail-

    ure.

    3 PERFORM DIAGNOSIS.

    1) Judge the possible cause from List of

    Diagnostic Trouble Code .

    2) Inspect the DTC using List of Diagnostic

    Trouble Code (DTC).

    3) Repair the trouble cause.

    4) Perform the clear memory mode.

    5) Perform the inspection mode.

    6) Read any DTC again.

    Is DTC displayed? Perform the proce-

    dure 1) to 5) in

    step 3.

    Finish the diagno-

    sis.

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    AIRBAG SYSTEM (DIAGNOSTICS)Check List for Interview

    2. Check List for Interview

    A: CHECK

    Customers Name Inspectors Name

    Date Vehicle Brought In / / Registration No.

    Odometer Readingkm

    milesV.I.N.

    Date Problem Occurred / / Registration Year / /

    Weather Fine Cloudy Rainy Snowy Other:

    Temperature C (F)

    Road Condition Level road Uphill Downhill Rough road Others:

    Vehicle Operation

    Starting Idling

    Driving (Constant speed Acceleration Deceleration

    Steering wheel turn Others: )

    Details of Problem

    Check Airbag Warning Light Normal (After turning the ignition switch to ON, lit for 6 seconds and goes off.)

    Remains ON Remains OFF

    DTC output Normal Code DTC: (Code: )

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    3. General Description

    A: CAUTION When servicing a vehicle, be sure to turn the ig-nition switch to OFF, disconnect the ground cablefrom battery, and wait for more than 20 secondsbefore starting work.

    The airbag system is equipped with a backuppower source. If the airbag system is serviced with-in 20 seconds from the ground cable is disconnect-ed, it may inflate.

    If sensors, airbag module, airbag control module,pretensioner and harness are deformed or dam-aged, replace them with new parts.

    Do not use the airbag system and pretensionerson other vehicles. When replacing parts, be sure toreplace them with new ones. When checking the airbag system, be sure touse a digital circuit tester. Use of an analog circuittester may cause the airbag to activate erroneous-ly.

    When checking, use a test harness (1). Do notdirectly apply the tester probe to any connector ter-minal of the airbag.

    Do not drop the airbag module, subject them tohigh temperature over 93C (199F), or let water,oil or grease get on them; the internal parts may bedamaged and reliability is greatly lowered.

    IN-00203

    AB-00120

    AB-00121

    AB-00122

    (1)

    AB-00123

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    If any damage, opening or rust is found on theairbag system wire harness, do not attempt to re-pair using soldering equipment. Be sure to replacethe faulty harness with a new genuine part.

    Install the wire harness securely with the speci-fied clips to avoid interference or tangled up withother parts.

    Do not allow water or oil to come in contact withthe connector terminals. Do not touch the connec-tor terminals.

    Either of the airbag modules for driver, passen-ger, side or curtain, or pretensioner must not bedisassembled.

    The airbag module cannot be used again if oncedeployed.

    After removal, keep the airbag module with thepad facing upward on a dry, clean and flat surfaceaway from heat, light sources, moisture and dust.

    Do not check continuity of either of the airbagmodules for driver, passenger, side or curtain, orpretensioner.

    AB-00124

    AB-00125

    AB-00126

    AB-00127

    AB-00056

    AB-00006

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    The removed front seat with an airbag modulemust be kept at least 200 mm (8 in) away from wallsand other objects.

    When painting or performing sheet metal workon the front part of the vehicle, including the frontwheel apron, front fender and front side frame, re-move the front sub sensors and wire harness of theairbag system. When painting or performing sheet metal workon the side of the vehicle, including the side sill,center pillar and front and rear doors, remove theside airbag sensors and wire harness of the airbagsystem.

    Do not discard undeployed airbag modules.They could easily cause a serious accident if acci-dentally deployed.

    (1) 200 mm (8 in) or more

    AB-00128

    (1)

    AB-00129

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    When storing a removed airbag module, do not place any objects on it or pile airbag modules on top ofeach other. If the airbag inflates for some reason when it is placed with its pad side facing downward or underany object, a serious accident may result.

    (1) Drivers airbag module (2) Passengers airbag module

    AB-00130

    (2)

    (1)

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    B: INSPECTIONMeasure the battery voltage and check electrolyte.

    Standard voltage: 12 V

    Specific gravity: Above 1.260

    C: PREPARATION TOOL

    CAUTION:To check the voltage and resistance of airbag system component, be sure to use the specified testharness.

    1. SPECIAL TOOL

    TEST HARNESS F

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299FC010 TEST HARNESS F Used when measuring voltage and resistance of

    airbag module harnesses.

    3F 2F

    1F

    ST98299FC010

    AB-00719

    3F

    3F 2F 1F

    2F

    1F

    3

    4

    6

    5 1

    1

    2

    2

    1

    3 4 5 6

    2 1 22 1

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS H

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299FA030 TEST HARNESS H Used when measuring voltage and resistance of

    front sub-sensor.

    3H

    2H

    1H

    ST98299FA030

    AB-00720

    3H

    3H 2H 1H

    2H

    1H

    4

    3

    6

    5

    1

    3 4 5 6

    2

    1

    1

    2

    2

    21 2 1

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS R

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299FE030 TEST HARNESS R Used when measuring voltage and resistance of

    airbag control module.

    1R2R

    3R 4R

    5R

    6R

    ST98299FE030

    AB-00606

    52

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

    1 2

    1 2 3 4 5 6 7 8 9 10 1 1 1 2 1 3 1 4

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    1213

    14

    15

    16

    17

    18

    19

    20

    50

    49

    47

    12

    10

    97

    8

    51

    48

    11

    16

    35

    34

    36

    30

    24

    43

    4

    44

    3

    37

    27

    21

    38

    32

    46

    42

    4541

    33

    14

    31

    5

    1

    6

    2

    19

    13

    29

    39

    40

    20

    28

    15

    17

    23

    25

    22

    26

    18

    1 2

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14

    2 3 4 5 6 7 8 9

    11 1 2 1 3 1 4 1 7 1 8 1 9 20

    1

    10 15 16123456

    789101112

    131415161718

    1920212223242526272829

    3031323334353637383940

    414243444546

    474849505152

    6R

    2R

    3R

    4R

    5R

    1R

    1 2 3 8

    9 10

    4

    11 12 13 14 15 16

    5 6 7

    17 18 1 22 1

    5R2R 6R1R

    4R 3R

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS N

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299SA000 TEST HARNESS N Used when measuring voltage and resistance of

    drivers airbag module and seat belt preten-

    sioner.

    2N

    1N

    ST98299SA000

    AB-00675

    2N 1N

    1

    2

    1

    2

    1 2

    2 1

    1N

    2N

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS P

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299SA020 TEST HARNESS P Used when measuring voltage and resistance of

    drivers airbag module harness and passenger

    airbag module harness.

    ST98299SA020

    1P

    2P

    3P

    AB-00679

    1P 2P

    3P

    4

    1 2

    4 3

    3

    2

    1

    4

    1 2

    3 4

    3 12

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS Q

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299SA040 TEST HARNESS Q Used when measuring voltage and resistance of

    drivers airbag module.

    2Q

    1Q

    ST98299SA040

    AB-00678

    2Q 1Q

    1

    2

    1

    2

    1 2

    2 1

    1Q

    2Q

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS U

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299AG000 TEST HARNESS U Used when measuring voltage and resistance of

    airbag control module.

    ST98299AG000

    1U2U

    4U 3U

    8U

    9U

    6U7U

    5U

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    AB-00676

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14

    2 3 4 5 6 7 8 9

    11 12 13 14 17 18 19 20

    1

    10 15 161234

    56789101112

    1314151617181920

    212223242526

    2728293031323334353637

    3839404142434445464748

    1 2 3 8

    9 10

    4

    11 12 13 14 15 16

    5 6 7

    17 18

    6U

    8U

    7U

    9U

    2U

    2U1U

    4U 5U 6U 7U 8U 9U

    3U

    5U

    1U

    3U

    4U

    58 57 56 55 54 535960

    61626364

    49505152

    65666768

    1 2 3 4 5 6 7 8

    9 10 11 12 13 14 15 1612

    3456

    2

    6 5 4 3

    1 1 21

    3 4 5 6

    2

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    17

    18

    19

    20

    1

    686566641715161367145032443424438325245352946405854575341223911595560569201842127374748283623253133303426 51064963616219 78 1 2 1512

    2

    3

    4

    56

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    12345678910111213141516

    17

    18

    1

    2

    3

    4

    56

    1

    2

    3

    4

    5

    6

    1

    2

    1

    2

    3

    4

    5

    6

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    14

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    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    TEST HARNESS V

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299AG010 TEST HARNESS V Used when measuring voltage and resistance of

    side airbag sensor and curtain airbag sensor.

    ST98299AG010

    1V3V

    2V

    AB-00677

    3V

    2V

    1V

    3V

    8

    5

    1

    4

    2

    3

    7

    6

    3

    4

    1

    2

    2

    1

    4

    3

    1 2 3

    4 5 6 7 8 4 3 2 1

    2V

    1 2 3 4

    1V

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    19/118AB(diag)-17

    AIRBAG SYSTEM (DIAGNOSTICS)General Description

    AIRBAG RESISTOR

    ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

    98299PA040 AIRBAG RESISTOR Used in replacement of airbag module for which

    resistance value is same as airbag module.

    ST98299PA040

    AB-00433

    3

    1

    2

    1

    2

    1

    21

    3456

    2

    4

    3

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    AIRBAG SYSTEM (DIAGNOSTICS)Electrical Component Location

    4. Electrical Component Location

    A: LOCATION

    1. LHD MODEL

    (1) Front sub-sensor (RH) (7) Drivers airbag inflator (13) Curtain airbag sensor (RH)

    (2) Front sub-sensor (LH) (8) Airbag rear harness (14) Curtain airbag sensor (LH)

    (3) Airbag control module with built-in

    safing and electric sensor

    (9) Side airbag sensor (RH) (15) Side airbag inflator (RH)

    (10) Side airbag sensor (LH) (16) Side airbag inflator (LH)

    (4) Airbag main harness (11) Seat belt pretensioner (RH) (17) Curtain airbag inflator (RH)

    (5) Roll connector (12) Seat belt pretensioner (LH) (18) Curtain airbag inflator (LH)

    (6) Passengers airbag inflator

    AB-00777

    (1)

    (2)

    (3)

    (7)

    (10) (12) (14)

    (15)

    (16)

    (17)

    (18)

    (8)(9) (11) (13)

    (5)

    (6)

    (4)

    AB13

    AB37

    AB38

    AB18

    AB17

    AB10

    AB23

    AB25

    AB20

    AB19

    AB23 AB21AB32

    AB39

    AB31

    AB40

    AB33

    AB24

    AB26 AB34

    AB2

    AB7

    B31

    AB1

    AB9

    AB6

    AB16

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    AIRBAG SYSTEM (DIAGNOSTICS)Electrical Component Location

    Connector

    No.(AB1) (AB2) (AB7) (AB9) (AB10) (AB13) (AB16) (AB17) (AB18) (AB19) (AB20) (AB21)

    Pin 6 4 4 4 4 2 2 20 20 2 2 2

    Color Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Black

    Male/Female Female Female Male Female Male Female Female Male Male Female Male Female

    Connector

    No. (AB23) (AB24) (AB25) (AB26) (AB28) (AB31) (AB32) (AB33) (AB34) (AB37) (AB38) (AB39)

    Pin 4 2 2 2 4 2 4 2 4 2 2 2

    Color Yellow Yellow Yellow Black Yellow Yellow Yellow Yellow Yellow Orange Black Yellow

    Male/Female Female Female Male Female Female Female Female Female Female Female Female Male

    Connector

    No.(AB40)

    Pin 2

    Color Yellow

    Male/Female Male

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    AIRBAG SYSTEM (DIAGNOSTICS)Electrical Component Location

    2. RHD MODEL

    (1) Front sub-sensor (LH) (7) Drivers airbag inflator (13) Curtain airbag sensor (LH)

    (2) Front sub-sensor (RH) (8) Airbag rear harness (14) Curtain airbag sensor (RH)

    (3) Airbag control module with built-in

    safing and electric sensor

    (9) Side airbag sensor (LH) (15) Side airbag inflator (LH)

    (10) Side airbag sensor (RH) (16) Side airbag inflator (RH)

    (4) Airbag main harness (11) Seat belt pretensioner (LH) (17) Curtain airbag inflator (LH)

    (5) Roll connector (12) Seat belt pretensioner (RH) (18) Curtain airbag inflator (RH)

    (6) Passengers airbag inflator

    AB-00680

    (1)

    (2)

    (3)

    (7)(10) (12) (14)

    (15)

    (16)

    (17)

    (18)

    (8)(9) (11) (13)

    (5)

    (6)

    (4)

    AB16AB37

    AB38AB18

    AB17

    AB10

    AB23

    AB20

    AB25

    AB24

    AB28 AB26 AB34

    AB40

    AB33

    AB39

    AB31

    AB19

    AB21AB32

    AB2

    AB7

    B31

    AB1

    AB9

    AB6

    AB13

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    AIRBAG SYSTEM (DIAGNOSTICS)Electrical Component Location

    Connector

    No.(AB1) (AB2) (AB7) (AB9) (AB10) (AB13) (AB16) (AB17) (AB18) (AB19) (AB20) (AB21)

    Pin 6 4 4 4 4 2 2 20 20 2 2 2

    Color Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Black

    Male/Female Female Female Male Female Male Female Female Male Male Female Male Female

    Connector

    No. (AB23) (AB24) (AB25) (AB26) (AB28) (AB31) (AB32) (AB33) (AB34) (AB37) (AB38) (AB39)

    Pin 4 2 2 2 4 2 4 2 4 2 2 2

    Color Yellow Yellow Yellow Black Yellow Yellow Yellow Yellow Yellow Orange Black Yellow

    Male/Female Female Female Male Female Female Female Female Female Female Female Female Male

    Connector

    No.(AB40)

    Pin 2

    Color Yellow

    Male/Female Male

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    24/118AB(diag)-22

    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Control Module I/O Signal

    5. Airbag Control Module I/O Signal

    A: WIRING DIAGRAM

    AB-00769

    E

    FB-36

    (IG)

    FB-41

    (IG)

    FB-39

    (IG)

    B79i1 B36

    B82

    B81

    AB1 AB6 i1

    B31

    AB1

    AB6

    R

    6

    3

    14

    A3 BrW

    GY

    FB-32

    (IG)

    GY

    BrW

    5 3 19 2

    R

    R

    RB

    GY 7

    2

    Lg

    23R

    RB

    BY

    BY

    LgLgA13

    6

    A: i10

    A: i10B79

    1 2

    3 4 5 6

    RB

    GY R L

    g

    TO POWER SUPPLY ROUTING

    COMBINATIONMETER

    CHECKCONNECTOR

    DIAGNOSISCONNECTOR

    GROUNDTERMINAL

    AIRBAG CONTROL MODULE

    (YELLOW) (GREEN)(GRAY)(YELLOW)

    F/B FUSE NO.5 F/B FUSE NO.25 F/B FUSENO.12 F/B FUSE NO.4

    BrWA4AIRBAG

    WARNING LIGHT

    1 2 3 4

    5 6 7 8 9 10

    1611 15141312

    17 1918

    23 2524

    20 2221

    26 2827

    21 3 4 6 7 8 9 10

    222120191817161514131211

    5

    B82

    1 2 3

    4 5 6 7 8

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

    2 3

    10

    1

    8 9

    4 5

    12

    6 7

    1411 13

    NOTCIRCUIT

    1 3 456

    LHD

    LHD

    Lg RR

    BRGY

    RHD

    RHD

    *LHD: BY

    RHD: B

    *

  • 7/23/2019 Subaru Legacy

    25/118AB(diag)-23

    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Control Module I/O Signal

    AB-00770

    AB9

    AB6 AB38AB2 AB13

    AB16

    AB13

    AB6

    E

    BW

    BW

    21

    26

    15

    AB16

    AB9

    AB10

    GAB-1

    E

    GAB-2

    1 2

    GW

    W

    209

    78 28

    27

    YG

    YL

    YW

    L

    21

    1 2

    AB38

    1 2

    (YELLOW)

    AIRBAG CONTROL MODULE

    INFLATOR(PASSENGER SIDE)

    (YELLOW)

    FRONT SUB SENSOR LH FRONT SUB SENSOR RH

    G

    LBr

    LBr

    B

    B

    YL

    YB

    YYB

    YW

    4

    YG

    YB

    YL

    23

    10

    11

    1

    YW

    YG

    YB

    YL

    AB37

    1 2

    YLLYY

    B

    (YELLOW)

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

    1 2 3 4

    17

    16

    13

    14

    AB2

    AB7

    AB381

    1

    212

    234

    STEERINGROLLCONNECTOR

    INFLATOR(DRIVER SIDE)

    AB37

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    26/118AB(diag)-24

    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Control Module I/O Signal

    :

    :

    WC

    OC

    WITH CURTAIN AIRBAG

    WITHOUT CURTAIN AIRBAG

    11

    12

    5 6

    AB26

    PRETENSIONER RH

    12

    YR

    YR

    YL

    YL

    WC

    OC

    AB18

    AB34 AB33

    AB40

    13

    16

    17 8 7 5 6

    RG

    15 41

    819

    20

    CURTAINAIRBAG

    SENSOR RH

    123 4

    INFLATOR(CURTAIN RH)

    12

    AB28 AB24

    AB25

    SIDE AIRBAGSENSOR RH

    12

    3 4 12

    RB

    RWR

    LR

    GR

    BY

    GY

    BW

    LGB

    RGR

    BR

    WR

    LR

    GR

    BY

    GY

    BW

    LGB

    AB-00771

    AIRBAG CONTROL MODULE

    INFLATOR(SIDE RH)

    WCOCAB28 AB18 AB18AB26

    1 2 3 4

    5 6 7 8 9 10 11 12

    13 14 15 16 17 18 19 20

    1 2AB34

    AB24

    AB33

    1 2 3 4 1 2

    1 2 3 4 5 6

    7 8 9 10 11 12

    (YELLOW)(YELLOW)(YELLOW)

    (YELLOW)

    (YELLOW)

    (YELLOW)

    (YELLOW)

    7 91210 2 1

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Control Module I/O Signal

    AB17

    AB32 AB31

    AB39

    20

    17

    16 91

    012

    11

    RG

    18 11

    514

    13

    WCOC

    CURTAINAIRBAG

    SENSOR LH

    123 4

    INFLATOR(CURTAIN LH)

    12

    AB23 AB19

    AB20

    SIDE AIRBAGSENSOR LH

    12

    3 4 12

    RB

    RWR

    LR

    GR

    BY

    GY

    BW

    LGB

    RGR

    BR

    WR

    LR

    GR

    BY

    GY

    BW

    LGB

    AB23 AB17 AB17AB21

    1 2 3 4

    5 6 7 8 9 10 11 12

    13 14 15 16 17 18 19 20

    1 2AB32

    AB19

    AB31

    1 2 3 4 1 2

    1 2 3 4 5 6

    7 8 9 10 11 12

    AB-00772

    AIRBAG CONTROL MODULE

    INFLATOR(SIDE LH)

    (YELLOW)(YELLOW)(YELLOW)

    (YELLOW)

    (YELLOW)

    (YELLOW)

    (YELLOW)

    :

    :

    WC

    OC

    WITH CURTAIN AIRBAG

    WITHOUT CURTAIN AIRBAG

    6 5

    2 1

    AB21

    PRETENSIONER LH

    12

    YR

    YR

    YL

    YL

    WC

    OC 12

    10

    79 5 6

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Connector

    6. Airbag Connector

    A: PROCEDURE

    1. POWER SUPPLY

    1) How to disconnect:(1) Move the slide lock (A) in the direction of ar-

    row.(2) With the slide lock (A) moved, separate theconnector.

    CAUTION:When pulling the slide lock or disconnectingthe connector, be sure to hold onto the connec-tor and not the wire.

    2) How to connect:Holding the connector (A), and push it in carefullyuntil a connecting sound is heard.

    CAUTION:Be sure to insert the connector in until it locks.Then pull on it gently to make sure that it islocked.

    2. DRIVERS AIRBAG MODULE AND PRE-TENSIONER

    1) How to disconnect:(1) Using a flat tip screwdriver, pry the pushlock upward to unlock.

    (2) Pull the connector to disconnect from driv-ers side airbag module assembly or retractorassembly.

    2) How to connect:

    Connect the connector in the reverse order of dis-connecting. At this time, be sure to insert the pushlock until a connecting sound is heard.

    CAUTION: Be sure to insert the connector in until itlocks. Then pull it gently to make sure that it islocked. Be sure to push the push lock in securely.

    NOTE:Connector can not be connected when the pushlock is in lock position. To connect the connector,set the push lock to unlock.

    AB-00721

    (A)

    AB-00016

    AB-00478

    AB-00479

    AB-00480

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Connector

    3. DRIVERS AIRBAG (BETWEEN AIRBAGMAIN HARNESS AND ROLL CONNECTOR),PASSENGERS AIRBAG

    1) How to disconnect:(1) Push the slide lock (A) into the direction ofarrow.

    (2) With the slide lock pushed, separate theconnector.

    CAUTION:

    Be sure to hold onto the connector and not wirewhen pulling the slide lock or disconnectingthe connector.

    2) How to connect:Holding the connector, push it in carefully until aconnecting sound is heard.

    CAUTION:Be sure to insert the connector in until it locks.Then pull it gently to make sure that it is locked.

    4. SIDE AIRBAG AND CURTAIN AIRBAG

    1) How to disconnect:(1) Push the lock arm (A).(2) With the lock arm (A) pushed in, move theslide lock (B) in the direction of arrow.

    (3) With the slide lock moved, release the lockarm (back to its original position), and discon-nect the connector.

    CAUTION:Be sure to hold onto the connector and not wirewhen pulling the slide lock or disconnectingthe connector.

    5. FRONT SUB-SENSOR, SIDE AIRBAGSENSOR AND CURTAIN AIRBAG SENSOR

    1) How to disconnect:Holding outer part (A), pull it in the direction of ar-row.

    CAUTION:Be sure to hold onto the connector and not wirewhen pulling the slide lock or disconnectingthe connector.

    AB-00722

    (A)

    AB-00022

    AB-00023

    AB-00017

    (A)

    (B)

    AB-00018

    AB-00024

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Connector

    2) How to connect:Holding the connector, and push it in carefully untila connecting sound is heard.

    CAUTION: Outer side (A) move back, and so do not putyour hand on the outer part. Be sure to insert the connector in until it

    locks. Then pull it gently to make sure that it islocked.

    AB-00025

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Warning Light Illumination Pattern

    7. Airbag Warning Light Illumi-nation Pattern

    A: INSPECTIONKeep the ignition switch ON, and confirm that theairbag warning light remains off approx. 6 secondsafter being turned on.

    (1) Airbag warning light

    (2) Approx. 6 sec.

    (3) Ignition switch (ON)

    AB-00135

    (1)

    (2)

    (3)

    OFF

    ON

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    AIRBAG SYSTEM (DIAGNOSTICS)Read Diagnostic Trouble Code (DTC)

    8. Read Diagnostic TroubleCode (DTC)

    A: OPERATION1) Remove the instrument panel lower cover upper.

    2) Turn the ignition switch to ON.3) Connect one of the ground terminals to the diag-nosis connector terminal No. 2 in the instrumentpanel lower cover area.

    NOTE:The harness (yellow/black) of ground terminal iswrapped by tapes with the harness (red, red/black)of diagnosis connector.

    4) Read the DTC by identifying the way airbagwarning light blinks.The airbag warning light blinks a DTC correspond-

    ing to the faulty parts.The long segment (1.2 sec. on) indicates a ten,and the short segment (0.3 sec. on) indicates aone.

    NOTE: List of Diagnostic Trouble Code (DTC) Airbag Warning Light Failure .

    5) Turn the ignition switch to OFF, and disconnectthe ground terminal from diagnosis connector ter-minal No. 2.6) Wind the tape around the ground terminal andreturn it to its original position.

    AB-007788765

    32

    4

    1

    B82

    (1) For example (3) Blinking code 21: (5) Sec.

    (2) Blinking code 12: (4) Blinking normal code:

    (2)

    (1)

    (3)

    (4)

    ON

    OFF

    ON

    OFF

    ON

    OFF

    (5)

    (5)

    (5)

    10

    1.2

    10 1 0 10 10

    1

    1 1

    1 10 11

    1.2 1.2

    0.60.6

    0.30.3 0.3 1.2

    0 .3 0 .3 1.20.30.3

    AB-00137

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    AIRBAG SYSTEM (DIAGNOSTICS)Inspection Mode

    9. Inspection Mode

    A: PROCEDURERecreate the circumstance by referring to the con-ditions described in the checklist.

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    AIRBAG SYSTEM (DIAGNOSTICS)Clear Memory Mode

    10.Clear Memory Mode

    A: OPERATION1) Remove the instrument panel lower cover upper.2) Turn the ignition switch to ON.

    3) Connect one of the ground terminals to the diag-nosis connector terminal No. 2 in the instrumentpanel lower cover area.

    4) While the warning light blinks, connect anotherdiagnosis terminal to the diagnosis connector ter-minal No. 3.5) Once the memory is erased, the warning light re-turns the normal blink pattern (0.6 sec. on). Failureto recover to the normal blink rate indicates thattrouble parts still remain. Having repaired suchparts, erase the memory again and confirm that theblink rate has returned to normal.6) When the memory has been cleared, disconnectthe diagnosis terminal from the diagnosis connec-

    tor.7) Wind the tape around the ground terminal andreturn it to its original position.

    AB-007788765

    32

    4

    1

    B82

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Warning Light Failure

    11.Airbag Warning Light Failure

    A: AIRBAG WARNING LIGHT REMAINS ONDETECTING CONDITION: Airbag warning light failure Airbag control module to airbag warning light circuit is shorted or open. Grounding circuit is faulty.

    Airbag control module is faulty. (AB1) and (B31) are not connected properly. (AB6) is not connected properly to airbag control module.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from the battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB6

    B31

    AB1

    No.5

    3

    A13

    A3

    A4

    AB6

    i10

    3 4

    1 2

    5 6

    AB1 i10

    B36 i1

    i1

    1

    14

    AB-00661

    IGNITION

    SWITCH

    AIRBAGINDICATOR

    LIGHT

    AIRBAGCIRCUIT

    BATTERY

    AIRBAG CONTROL MODULE

    1 2 3 4

    5 6 7 8 9 10

    1611 15141312

    17 1918

    23 2524

    20 2221

    26 2827

    21 3 4 6 7 8 9 10

    222120191817161514131211

    51 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Warning Light Failure

    Step Check Yes No

    1 CHECK POOR CONTACT.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Confirm that the firm contact is secured

    between the airbag control module and con-

    nector (AB6).

    Is there poor contact in con-

    nector (AB6)?

    Replace the airbag

    main harness with

    body harness or

    replace the airbag

    control module.

    Go to step 2.

    2 CHECK AIRBAG MAIN HARNESS.

    1) Remove the instrument panel lower cover

    and disconnect the connector (AB7) and

    (AB2).

    2) Remove the instrument panel side cover of

    passenger side and disconnect the connector

    (AB10) and (AB9).

    3) Disconnect the connector (AB6) from air-

    bag control module, and connect the connector

    (1U) in the test harness U.

    4) Connect the battery ground terminal and

    turn the ignition switch ON.5) Connect the connectors (7U) and (8U) in

    the test harness U.

    NOTE:After problem has been eliminated, disconnect

    the connectors (7U) and (8U).

    Does the airbag warning light

    go off?

    Go to step 3. Go to step 4.

    3 CHECK GROUND CIRCUIT.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB6) from air-

    bag control module.

    3) Connect the connector (1U) in the test har-

    ness U to body harness connector (AB6).

    4) Measure the resistance between connector(2U) in the test harness U and chassis ground.

    Connector & terminal

    (2U) No. 10 Chassis ground:

    (2U) No. 11 Chassis ground:

    Is the resistance less than 10

    ?

    Replace the airbag

    control module.

    Repair the chas-

    sis ground circuit.

    4 CHECK AIRBAG MAIN HARNESS AND

    BODY HARNESS.

    1) Disconnect the connector (7U) and (8U).

    2) Remove the combination meter.

    3) Measure the resistance between connector

    (i10) and connector (2U) in the test harness U.

    Connector & terminal

    (2U) No. 7 (i10) No. 13:

    Is the resistance less than 10

    ?

    Replace the com-

    bination meter

    printed circuit.

    Go to step 5.

    5 CHECK POOR CONTACT IN CONNECTORS(AB1) AND (B31).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Confirm that firm contact is secured

    between connectors (AB1) and (B31).

    Is there poor contact in con-nectors (AB1) and (B31)? Repair the bodyharness or replace

    the airbag main

    harness with body

    harness.

    Go to step 6.

    6 CHECK AIRBAG MAIN HARNESS.

    Check the airbag main harness for abnormali-

    ties.

    Is anything unusual to airbag

    main harness?

    Replace the airbag

    main harness with

    body harness.

    Repair the body

    harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Warning Light Failure

    B: AIRBAG WARNING LIGHT REMAINS OFFDETECTING CONDITION: Fuse No. 5 (in fuse box) is blown. Body harness circuit is open. Airbag warning light is faulty. Airbag main harness is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB6

    B31

    AB1

    No.5

    3

    A13

    A3

    A4

    AB6

    i10

    3 4

    1 2

    5 6

    AB1 i10

    B36 i1

    i1

    1

    14

    AB-00661

    IGNITION

    SWITCH

    AIRBAGINDICATOR

    LIGHT

    AIRBAGCIRCUIT

    BATTER

    Y

    AIRBAG CONTROL MODULE

    1 2 3 4

    5 6 7 8 9 10

    1611 15141312

    17 1918

    23 2524

    20 2221

    26 2827

    21 3 4 6 7 8 9 10

    222120191817161514131211

    51 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Airbag Warning Light Failure

    Step Check Yes No

    1 CHECK COMBINATION METER.

    Turn the ignition switch to ON, and confirm that

    warning lights equipped in the combination

    meter are turned on.

    Do warning lights other than

    the airbag turn on?

    Go to step 2. Repair the combi-

    nation meter

    power supply.

    2 CHECK FUSE NO. 5 (IN MAIN FUSE BOX).

    Remove the fuse No. 5 and perform visual

    inspection.

    Is the fuse No. 5 (in main fuse

    box) blown out?

    Replace the fuse

    No. 5. If the fuse

    No. 5 is blown

    again, go to step

    3.

    Go to step 3.

    3 CHECK AIRBAG WARNING LIGHT CIRCUIT

    (IN COMBINATION METER).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB1) from

    (B31).

    3) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    turn on?

    Go to step 4. Replace the airbag

    warning light bulb

    or combination

    meter printed cir-

    cuit.

    4 CHECK AIRBAG MAIN HARNESS.1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Connect the connector (AB1) to (B31).

    3) Disconnect the connector (AB6) from air-

    bag control module.

    4) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning lightturn on?

    Replace the airbagcontrol module.

    Replace the airbagmain harness with

    body harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)List of Diagnostic Trouble Code (DTC)

    12.List of Diagnostic Trouble Code (DTC)

    A: LIST

    DTCMemory func-

    tionContent of diagnosis Reference

    11 Experienced

    Airbag main harness circuit is open, shorted or

    shorted to ground.

    Airbag module harness (Drivers side) circuit isopen, shorted or shorted to ground.

    Roll connector circuit is open, shorted or shorted

    to ground.

    Airbag control module is faulty.

    Drivers airbag module is faulty.

    12 Experienced

    Airbag main harness circuit is open, shorted or

    shorted to ground.

    Airbag module harness (Passengers side) circuit

    is open, shorted or shorted to ground.

    Airbag control module is faulty.

    Passengers airbag module is faulty.

    15 Experienced

    Airbag main harness circuit (Drivers side) is

    shorted to power supply.

    Airbag module harness circuit (Drivers side) is

    shorted to power supply.

    Roll connector is shorted to the power supply.

    Airbag control module is faulty.

    Drivers airbag module is faulty.

    16 Experienced

    Airbag main harness circuit (Passengers side) is

    shorted to power supply.

    Airbag module harness circuit (Passengers side)

    is shorted to power supply.

    Airbag control module is faulty.

    Passengers airbag module is faulty.

    21 Experienced

    Airbag control module is faulty.

    22 Experienced

    Front airbag module and seat belt pretensioner (LH/

    RH) are deployed.

    23 None

    (AB6), (AB17) and (AB18) are not connected prop-

    erly to airbag control module.

    24 None

    Airbag control module is faulty.

    Airbag main harness circuit is open.

    Fuse No. 25 (in joint box) is blown.

    Airbag rear harness circuit is open.

    25 Experienced

    Airbag control module is faulty.

    Airbag main harness circuit is open.

    Fuse No. 12 (in joint box) is blown.

    Airbag rear harness circuit is open.

    31 Experienced

    Front sub-sensor harness (RH) circuit is shorted.

    Front sub-sensor harness (RH) circuit is open.

    Front sub-sensor (RH) is faulty.

    Airbag control module is faulty.

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    AIRBAG SYSTEM (DIAGNOSTICS)List of Diagnostic Trouble Code (DTC)

    32 Experienced

    Front sub-sensor harness (LH) circuit is shorted.

    Front sub-sensor harness (LH) circuit is open.

    Front sub-sensor (LH) is faulty.

    Airbag control module is faulty.

    33 Experienced

    Front sub-sensor (RH) is faulty.

    34 Experienced

    Front sub-sensor (LH) is faulty.

    41 Experienced

    Side airbag harness (RH) is faulty.

    Side airbag module (RH) is faulty.

    Airbag control module is faulty.

    42 Experienced

    Side airbag harness (LH) is faulty.

    Side airbag module (LH) is faulty.

    Airbag control module is faulty.

    45 Experienced

    Side airbag harness (RH) is shorted to power sup-

    ply.

    Airbag control module is faulty.

    46 Experienced

    Side airbag harness (LH) is shorted to power sup-

    ply.

    Airbag control module is faulty.

    51 Experienced

    Side airbag sensor (RH) is faulty.

    Side airbag harness (RH) is faulty.

    Airbag control module is faulty.

    52 Experienced

    Side airbag sensor (LH) is faulty. Side airbag harness (LH) is faulty.

    Airbag control module is faulty.

    53 Experienced

    Side airbag sensor (RH) is faulty.

    54 Experienced

    Side airbag sensor (LH) is faulty.

    55 Experienced

    Side airbag module is deployed.

    Curtain airbag module is deployed.

    56 Experienced

    Curtain airbag sensor (RH) is faulty.

    Curtain airbag harness (RH) is faulty.

    Airbag control module is faulty.

    57 Experienced

    Curtain airbag sensor (LH) is faulty.

    Curtain airbag harness (LH) is faulty.

    Airbag control module is faulty.

    DTCMemory func-

    tionContent of diagnosis Reference

  • 7/23/2019 Subaru Legacy

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    AIRBAG SYSTEM (DIAGNOSTICS)List of Diagnostic Trouble Code (DTC)

    58 Experienced

    Curtain airbag sensor (RH) is faulty.

    59 Experienced

    Curtain airbag sensor (LH) is faulty.

    61 Experienced

    Seat belt pretensioner (RH) circuit is open, shorted

    or shorted to ground.

    Airbag control module is faulty.

    Pretensioner is faulty.

    Pretensioner harness is faulty.

    62 Experienced

    Seat belt pretensioner (LH) circuit is open, shorted

    or shorted to ground.

    Airbag control module is faulty.

    Pretensioner is faulty.

    Pretensioner harness is faulty.

    65 Experienced

    Seat belt pretensioner (RH) circuit is shorted to

    power supply. Pretensioner is faulty.

    Pretensioner harness is faulty.

    Airbag control module is faulty.

    66 Experienced

    Seat belt pretensioner (LH) circuit is shorted to

    power supply.

    Pretensioner is faulty.

    Pretensioner harness is faulty.

    Airbag control module is faulty.

    71 Experienced

    Airbag main harness circuit is open, shorted or

    shorted to ground.

    Airbag module harness (Drivers side) circuit is

    open, shorted or shorted to ground.

    Roll connector circuit is open, shorted or shortedto ground.

    Airbag control module is faulty.

    Drivers airbag module is faulty.

    72 Experienced

    Airbag main harness circuit is open, shorted or

    shorted to ground.

    Airbag module harness (Passengers side) circuit

    is open, shorted or shorted to ground.

    Airbag control module is faulty.

    Passengers airbag module is faulty.

    75 Experienced

    Airbag main harness circuit (Drivers side) is

    shorted to power supply.

    Airbag module harness circuit (Drivers side) is

    shorted to power supply.

    Roll connector is shorted to power supply. Airbag control module is faulty.

    Drivers airbag module is faulty.

    76 Experienced

    Airbag main harness circuit (Passengers side) is

    shorted to power supply.

    Airbag module harness circuit (Passengers side)

    is shorted to power supply.

    Airbag control module is faulty.

    Passengers airbag module is faulty.

    DTCMemory func-

    tionContent of diagnosis Reference

  • 7/23/2019 Subaru Legacy

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    AIRBAG SYSTEM (DIAGNOSTICS)List of Diagnostic Trouble Code (DTC)

    91 Experienced

    Curtain airbag harness (RH) is faulty.

    Curtain airbag module (RH) is faulty.

    Airbag control module is faulty.

    92 Experienced

    Curtain airbag harness (LH) is faulty.

    Curtain airbag module (LH) is faulty.

    Airbag control module is faulty.

    95 Experienced

    Curtain airbag harness (RH) is shorted to power

    supply.

    Airbag control module is faulty.

    96 Experienced

    Curtain airbag harness (LH) is shorted to power

    supply.

    Airbag control module is faulty.

    DTCMemory func-

    tionContent of diagnosis Reference

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    13.Diagnostic Chart with Trouble Code

    A: DTC 11DTC DETECTING CONDITION: Airbag main harness circuit is open, shorted or shorted to ground. Airbag module harness (Drivers side) circuit is open, shorted or shorted to ground. Roll connector circuit is open, shorted or shorted to ground.

    Drivers airbag module is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    16

    17

    13

    14

    AB6

    AB2

    AB2

    AB7

    1 23 4

    AB6

    AB381 21 2

    21

    AB38

    AIRBAG CONTROL MODULE

    STEERINGROLL CONNECTOR

    INFLATOR(DRIVER SIDE)

    (YELLOW) (YELLOW)

    AB37

    1 2 3 4

    (BLACK)

    21

    AB37 (ORANGE)

    AB-00662

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    Step Check Yes No

    1 CHECK DRIVERS AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Remove the drivers airbag module.

    3) Connect the connector (1N) in the test har-

    ness N to connector (AB38).

    4) Connect the airbag resistor to connector

    (2N) in the test harness N.

    5) Connect the connectors (1Q) in the test

    harness Q to connector (AB37).

    6) Connect the airbag resistor to connector

    (2Q) in the test harness Q.

    7) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the

    drivers airbag

    module.

    Go to step 2.

    2 CHECK ROLL CONNECTOR.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the test harness N from con-nector (AB38).

    3) Disconnect the test harness Q from con-

    nector (AB37).

    4) Remove the instrument panel lower cover,

    disconnect the connector (AB7) from (AB2).

    5) Connect the connector (1P) in the test har-

    ness P to connector (AB2).

    6) Connect the airbag resistor to connector

    (2P) and (3P) in the test harness P.

    7) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the roll

    connector.

    Go to step 3.

    3 CHECK AIRBAG MAIN HARNESS (DRIV-

    ERS AIRBAG HARNESS).

    1) Turn the ignition switch OFF, disconnect thebattery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the airbag resistor from con-

    nector (2P) and (3P) in the test harness P.

    3) Remove the instrument panel side cover of

    passengers side and disconnect the connector

    (AB10) and (AB9).

    4) Disconnect the connector (AB6) from air-

    bag control module, and connect the connector

    (1U) in the test harness U.

    5) Measure the resistance between connector

    (2U) in the test harness U and connector (2P)and (3P) in the test harness P.

    Connector & terminal

    (2U) No. 2 (2P) No. 1:

    (2U) No. 4 (2P) No. 2:

    (2U) No. 8 (3P) No. 3:

    (2U) No. 12 (3P) No. 4:

    Is the resistance less than 10

    ?

    Go to step 4. Replace the airbag

    main harness with

    body harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    4 CHECK AIRBAG MAIN HARNESS (DRIV-

    ERS AIRBAG HARNESS).

    Measure the resistance between connector

    (2U) terminals in the test harness U.

    Connector & terminal

    (2U) No. 2 (2U) No. 4:

    (2U) No. 4 Chassis ground:

    (2U) No. 2 Chassis ground:

    (2U) No. 8 (2U) No. 12:

    (2U) No. 8 Chassis ground:

    (2U) No. 12 Chassis ground:

    Is the resistance more than 1

    M?

    Replace the airbag

    control module.

    Replace the airbag

    main harness with

    body harness.

    Step Check Yes No

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    B: DTC 12DTC DETECTING CONDITION: Airbag main harness circuit is open, shorted or shorted to ground. Airbag module harness (Passengers side) circuit is open, shorted or shorted to ground. Passengers airbag module is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB-00663

    AB6

    INFLATOR(PASSENGER SIDE)

    AB9

    AB9

    AB10

    11

    10

    3 4

    78

    1 2

    AIRBAG CONTROL MODULEAB6

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

    1 2 3 4

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    Step Check Yes No

    1 CHECK PASSENGERS AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Remove the instrument panel side cover on

    the passengers side.

    3) Disconnect the connector (AB10) from

    (AB9).

    4) Connect the connector (1P) in the test har-

    ness P to connector (AB9).

    5) Connect the airbag resistor to connector

    (2P) and (3P) in the test harness P.

    6) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the pas-

    sengers airbag

    module.

    Go to step 2.

    2 CHECK AIRBAG MAIN HARNESS (PASSEN-

    GERS AIRBAG HARNESS).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the airbag resistor from con-

    nector (2P) and (3P) in the test harness P.3) Remove the instrument panel lower cover,

    disconnect the connector (AB7) from (AB2).

    4) Disconnect the connector (AB6) from air-

    bag control module, and connect the connector

    (1U) in the test harness U.

    5) Measure the resistance between connector

    (2U) in the test harness U and connector (2P)

    and (3P) in the test harness P.

    Connector & terminal

    (2U) No. 3 (2P) No. 1:

    (2U) No. 5 (2P) No. 2:

    (2U) No. 9 (3P) No. 3:

    (2U) No. 13 (3P) No. 4:

    Is the resistance less than 10

    ?

    Go to step 3. Replace the airbag

    main harness with

    body harness.

    3 CHECK AIRBAG MAIN HARNESS (PASSEN-

    GERS AIRBAG HARNESS).

    Measure the resistance between connector

    (2U) terminals in the test harness U and

    between the connector (2U) and chassis

    ground.

    Connector & terminal

    (2U) No. 3 (2U) No. 5:

    (2U) No. 3 Chassis ground:

    (2U) No. 5 Chassis ground:

    (2U) No. 9 (2U) No. 13:

    (2U) No. 9 Chassis ground:

    (2U) No. 13 Chassis ground:

    Is the resistance more than 1

    M?

    Replace the airbag

    control module.

    Replace the airbag

    main harness with

    body harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    C: DTC 15DTC DETECTING CONDITION: Airbag main harness circuit (Drivers side) is shorted to power supply. Airbag module harness circuit (Drivers side) is shorted to power supply. Roll connector is shorted to the power supply. Drivers airbag module is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    16

    17

    13

    14

    AB6

    AB2

    AB2

    AB7

    1 23 4

    AB6

    AB381 21 2

    21

    AB38

    AIRBAG CONTROL MODULE

    STEERINGROLL CONNECTOR

    INFLATOR(DRIVER SIDE)

    (YELLOW) (YELLOW)

    AB37

    1 2 3 4

    (BLACK)

    21

    AB37 (ORANGE)

    AB-00662

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    Step Check Yes No

    1 CHECK DRIVERS AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Remove the drivers airbag module.

    3) Connect the connector (AB38) to connector

    (1N) in the test harness N.

    4) Connect the airbag resistor to connector

    (2N) in the test harness N.

    5) Connect the connectors (1Q) in the test

    harness Q to connector (AB37).

    6) Connect the airbag resistor to connector

    (2Q) in the test harness Q.

    7) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the

    drivers airbag

    module.

    Go to step 2.

    2 CHECK ROLL CONNECTOR.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the test harness N from con-nector (AB38).

    3) Disconnect the test harness Q from con-

    nector (AB37).

    4) Remove the instrument panel lower cover,

    disconnect the connector (AB7) from (AB2).

    5) Connect the connector (1P) in the test har-

    ness P to connector (AB2).

    6) Connect the airbag resistor to connector

    (2P) and (3P) in the test harness P.

    7) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the roll

    connector.

    Go to step 3.

    3 CHECK AIRBAG MAIN HARNESS (DRIV-

    ERS AIRBAG HARNESS).

    1) Turn the ignition switch OFF, disconnect thebattery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the airbag resistor from con-

    nector (2P) and (3P) in the test harness P.

    3) Remove the instrument panel side cover of

    passengers side and disconnect the connector

    (AB10) and (AB9).

    4) Disconnect the connector (AB6) from air-

    bag control module, and connect the connector

    (1U) in the test harness U.

    5) Connect the battery ground terminal and

    turn the ignition switch ON. (engine OFF)

    6) Measure the voltage between connector(2U) in the test harness U and chassis ground.

    Connector & terminal

    (2U) No. 4 (+) Chassis ground ():

    (2U) No. 2 (+) Chassis ground ():

    (2U) No. 8 (+) Chassis ground ():

    (2U) No. 12 (+) Chassis ground ():

    Is the voltage less than 1 V? Replace the airbag

    control module.

    Replace the airbag

    main harness with

    body harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    D: DTC 16DTC DETECTING CONDITION: Airbag main harness circuit (Passengers side) is shorted to power supply. Airbag module harness circuit (Passengers side) is shorted to power supply. Passengers airbag module is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB-00663

    AB6

    INFLATOR(PASSENGER SIDE)

    AB9

    AB9

    AB10

    11

    10

    3 4

    78

    1 2

    AIRBAG CONTROL MODULEAB6

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

    1 2 3 4

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    E: DTC 21DTC DETECTING CONDITION:Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly.

    Step Check Yes No

    1 CHECK PASSENGERS AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Remove the instrument panel side cover on

    the passengers side.

    3) Disconnect the connector (AB10) from

    (AB9).

    4) Connect the connector (1P) in the test har-

    ness P to connector (AB9).

    5) Connect the airbag resistor to connector

    (2P) and (3P) in the test harness P.

    6) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the pas-

    sengers airbag

    module.

    Go to step 2.

    2 CHECK AIRBAG MAIN HARNESS (PASSEN-

    GERS AIRBAG HARNESS).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the airbag resistor from con-

    nector (2P) and (3P) in the test harness P.3) Remove the instrument panel lower cover,

    disconnect the connector (AB7) from (AB2).

    4) Disconnect the connector (AB6) from air-

    bag control module, and connect the connector

    (1U) in the test harness U.

    5) Measure the voltage between connector

    (2U) in the test harness U and chassis ground.

    Connector & terminal

    (2U) No. 3 (+) Chassis ground ():

    (2U) No. 5 (+) Chassis ground ():

    (2U) No. 9 (+) Chassis ground ():

    (2U) No. 13 (+) Chassis ground ():

    Is the voltage less than 1 V? Replace the airbag

    control module.

    Replace the airbag

    main harness with

    body harness.

    Step Check Yes No

    1 CHECK IF DTC 21 IS INDICATED.

    Read the DTC.

    Is DTC 21 indicated for airbag

    warning light?

    Replace the airbag

    control module.

    Perform the clear

    memory mode.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    F: DTC 22WIRING DIAGRAM:

    This DTC is indicated when the front airbag module and the pretensioner are deployed.Once this DTC is displayed, the memory cannot be cleared. Replace the following parts. Airbag control module. Drivers airbag module. Passengers airbag module. Front sub-sensor of both sides. Front seat belt outer with pretensioner of both sides.

    AB-00729

    AB6 AB18AB17

    AB2612

    AB9

    AB10

    AB211 41 2

    17

    16

    13

    14

    11

    10

    AB2

    AB7

    AB381

    1

    21 2

    23 4

    AB9

    AB2

    AB38

    1 2

    AB17

    AB6

    STEERINGROLLCONNECTOR

    INFLATOR

    (DRIVER SIDE)

    INFLATOR

    (PASSENGER SIDE)PRETENSIONER LH

    AIRBAG CONTROL MODULE

    PRETENSIONER RH

    AB3732

    7 8

    AB17 AB18 AB18

    AB26

    AB21 AB37

    1 2

    WITHCURTAIN AIRBAG

    1

    2

    3

    4

    1 2 3 4

    *1 : 6

    *2 : 5

    *3 : 11

    *4 : 12

    WITHOUTCURTAIN AIRBAG

    *1 : 2

    *2 : 1

    *3 : 5

    *4 : 6

    * * * *

    1 2 3 4 5 67 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

    7 8 9 10 11 12

    13 14 15 16 17 18 19

    5 6

    20

    1 2 3 4

    7 8 9 10 11 12

    13 14 15 16 17 18 19

    5 6

    20

    1 2 3 41 2 3 4 5 6

    7 8 9 10 11 12

    1 2 3 4 5 6

    7 8 9 10 11 12

    (WITHOUT CURTAIN AIRBAG) (WITHOUT CURTAIN AIRBAG)(WITH CURTAIN AIRBAG)(WITH CURTAIN AIRBAG)

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    G: DTC 23DTC DETECTING CONDITION:(AB6), (AB17) and (AB18) are not connected properly to airbag control module.

    CAUTION:Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect the groundterminal from battery, and wait more than 20 seconds before starting to work.

    Step Check Yes No

    1 CHECK POOR CONTACT IN CONNECTORS

    (AB6), (AB17) AND (AB18).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connectors (AB6), (AB17)

    and (AB18) from airbag control modules.

    Is there rust or damage on the

    harness connector and the

    control module connector?

    Replace the airbag

    control module.

    Replace

    the body harness

    with airbag main

    harness. Replace

    the body harness

    with side airbag

    harness.

    Go to step 2.

    2 CHECK POOR CONTACT IN CONNECTORS

    (AB6), (AB17) AND (AB18).1) Ensure that the connectors are firmly

    reconnected.

    2) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Finish the diagno-

    sis.

    Replace the airbag

    control module.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    H: DTC 24DTC DETECTING CONDITION: Airbag control module is faulty. Airbag main harness circuit is open. Fuse No. 25 (in joint box) is blown. Body harness circuit is open.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB6

    AB6

    No.25

    6

    IGNITION

    SWITCH

    BATTERY

    AIRBAG CONTROL MODULE

    AB-00666

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    Step Check Yes No

    1 CHECK AIRBAG CONTROL MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB6) from air-

    bag control module.

    3) Connect the connector (1U) in the test har-

    ness U to connector (AB6).

    4) Connect the battery ground terminal and

    turn the ignition switch ON.

    5) Measure the voltage between connector

    (2U) in the test harness U and chassis ground.

    Connector & terminal

    (2U) No. 1 (+) Chassis ground ():

    Is the voltage more than 10 V? Replace the airbag

    control module.

    Go to step 2.

    2 CHECK FUSE NO. 25 (IN JOINT BOX).

    1) Confirm that the ignition switch is turned

    OFF.

    2) Remove the fuse No. 25 (in joint box) and

    perform visual inspection.

    Is the fuse No. 25 blown out? Replace the fuse

    No. 25. If fuse No.

    25 is blown out

    again, repair the

    body harness.

    Repair the body

    harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    I: DTC 25DTC DETECTING CONDITION: Airbag control module is faulty. Airbag main harness circuit is open. Fuse No. 12 (in joint box) is blown. Body harness circuit is open.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from the battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB6

    AB6

    No.12

    5

    IGNITION

    SWITCH

    BATTERY

    AIRBAG CONTROL MODULE

    AB-00665

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    Step Check Yes No

    1 CHECK AIRBAG CONTROL MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB6) from air-

    bag control module.

    3) Connect the connector (1U) in the test har-

    ness U to connector (AB6).

    4) Connect the battery ground terminal and

    turn the ignition switch ON.

    5) Measure the voltage between connector

    (2U) in the test harness U and chassis ground.

    Connector & terminal

    (2U) No. 6 (+) Chassis ground ():

    Is the voltage more than 10 V? Replace the airbag

    control module.

    Go to step 2.

    2 CHECK FUSE NO. 12 (IN JOINT BOX).

    1) Confirm that the ignition switch is turned

    OFF.

    2) Remove the fuse No. 12 (in joint box) and

    perform visual inspection.

    Is the fuse No. 12 blown out? Replace the fuse

    No. 12. If fuse No.

    12 is blown out

    again, repair the

    body harness.

    Repair the body

    harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    J: DTC 31DTC DETECTING CONDITION: Front sub-sensor harness (RH) circuit is shorted. Front sub-sensor harness (RH) circuit is open. Front sub-sensor (RH) is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from the battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB-00667

    AB6

    AB16

    AB6

    209

    1

    2

    AB16

    1 2

    AIRBAG CONTROL MODULE

    FRONT SUB SENSOR RH

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    Step Check Yes No

    1 CHECK AIRBAG MAIN HARNESS (FRONT

    SUB-SENSOR HARNESS RH).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Remove the instrument panel lower cover

    and disconnect the connector (AB7) and

    (AB2).

    3) Remove the instrument panel side cover on

    passengers side and disconnect the connector

    (AB10) and (AB9).

    4) Disconnect the connector (AB6) from air-

    bag control module.

    5) Connect the connector (1U) in the test har-

    ness U to connector (AB6).

    6) Disconnect the front sub-sensor (RH), and

    then connect the connector (1H) in the test

    harness H to connector (AB16).

    7) Measure the resistance between connector

    (3U) in the test harness U and connector (3H)

    in the test harness H.

    Connector & terminal

    (3U) No. 7 (3H) No. 5:

    (3U) No. 9 (3H) No. 6:

    Is the resistance less than 10

    ?

    Go to step 2. Replace the airbag

    main harness with

    body harness.

    2 CHECK AIRBAG MAIN HARNESS (FRONT

    SUB-SENSOR HARNESS RH).

    Measure the resistance between connector

    (3U) in the test harness U and chassis ground.

    Connector & terminal

    (3U) No. 7 Chassis ground:

    (3U) No. 9 Chassis ground:

    Is the resistance more than 1

    M?

    Replace the front

    sub-sensor (RH).

    When the

    sensor is not OK,

    though the sensor

    is replaced,

    replace the airbag

    control module.

    Replace the airbag

    main harness with

    body harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    K: DTC 32DTC DETECTING CONDITION: Front sub-sensor harness (LH) circuit is shorted. Front sub-sensor harness (LH) circuit is open. Front sub-sensor (LH) is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons.

    WIRING DIAGRAM:

    AB-00668

    AB6

    AB13

    AB6

    15

    26

    2

    1

    AB13

    1 2

    AIRBAG CONTROL MODULE

    FRONT SUB SENSOR LH

    1 2 3 4 5 6

    7 8 9 10 11 12 13 14 15 16 17

    18 19 20 21 22 23 24 25 26 27 28

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    L: DTC 33DTC DETECTING CONDITION:Front sub-sensor (RH) is faulty.When DTC 33 is displayed, the circuit within the front sub-sensor (RH) is faulty. Replace the front sub-sensor(RH).

    M: DTC 34DTC DETECTING CONDITION:

    Front sub-sensor (LH) is faulty.When DTC 34 is displayed, the circuit within the front sub-sensor (LH) is faulty. Replace the front sub-sensor(LH).

    Step Check Yes No

    1 CHECK AIRBAG MAIN HARNESS (FRONT

    SUB-SENSOR HARNESS LH).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Remove the instrument panel lower cover

    and disconnect the connector (AB7) and

    (AB2).

    3) Remove the instrument panel side cover on

    passengers side and disconnect the connector

    (AB10) and (AB9).

    4) Disconnect the connector (AB6) from air-

    bag control module.

    5) Connect the connector (1U) in the test har-

    ness U to connector (AB6).

    6) Disconnect the front sub-sensor (LH), and

    then connect the connector (1H) in the test

    harness H to connector (AB13).

    7) Measure the resistance between connector

    (3U) in the test harness U and connector (3H)

    in the test harness H.

    Connector & terminal

    (3U) No. 6 (3H) No. 5:

    (3U) No. 8 (3H) No. 6:

    Is the resistance less than 10

    ?

    Go to step 2. Replace the airbag

    main harness with

    body harness.

    2 CHECK AIRBAG MAIN HARNESS (FRONT

    SUB-SENSOR HARNESS LH).

    Measure the resistance between connector

    (3U) in the test harness U and chassis ground.

    Connector & terminal

    (3U) No. 6 Chassis ground:

    (3U) No. 8 Chassis ground:

    Is the resistance more than 1

    M?

    Replace the front

    sub-sensor (LH).

    When the

    sensor is not OK,

    though the sensor

    is replaced,

    replace the airbag

    control module.

    Replace the airbag

    main harness with

    body harness.

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    N: DTC 41DTC DETECTING CONDITION: Side airbag harness (RH) is faulty. Side airbag module (RH) is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons. When inspecting the airbag rear harness, disconnect the side airbag module connector, curtainairbag module connector and seat belt pretensioner connector for safety reasons.

    WIRING DIAGRAM:

    AB-00773

    AB18

    AB24

    AB25

    1 2AB28

    3 41 2

    7815

    17

    13

    16

    AB18AB28AB24

    1 2

    AIRBAG CONTROL MODULE

    INFLATOR(SIDE RH)

    SIDE AIRBAGSENSOR RH

    7 8 9 10 11 12

    13 14 15 16 17 18 19

    5 6

    20

    1 2 3 4

    1 2 3 4

    1210

    127 9

    :

    :

    WC

    OC

    WITH CURTAIN AIRBAG

    WITHOUT CURTAIN AIRBAG

    WC

    OC

    AB18

    2 3 4 5 6

    8 9 10 11 12

    (WITHOUT CURTAIN AIRBAG)(WITH CURTAIN AIRBAG)

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    1. MODEL WITH CURTAIN AIRBAG

    Step Check Yes No

    1 CHECK SIDE AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB25) from

    (AB24), and connect the connector (1F) in test

    harness F to connector (AB24).

    3) Connect the airbag resistor to the connec-

    tor (3F) in the test harness F.

    4) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the front

    seat with side air-

    bag module (RH).

    Go to step 2.

    2 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB26) from seat

    belt pretensioner (RH). 3) Disconnect the connector (AB33) from cur-

    tain airbag module (RH).

    4) Disconnect the airbag resistor from the test

    harness F.

    5) Disconnect the connector (AB18) from air-

    bag control module.

    6) Connect the connector (1U) in the test har-

    ness U to connector (AB18).

    7) Measure the resistance between connector

    (3U) in the test harness U and connector (3F)

    in the test harness F.

    Connector & terminal

    (3U) No. 20 (3F) No. 3:(3U) No. 18 (3F) No. 4:

    Is the resistance less than 10

    ?

    Go to step 3. Replace the airbag

    rear harness with

    body harness.

    3 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between connector

    (3U) terminals in the test harness U.

    Connector & terminal

    (3U) No. 20 (3U) No. 18:

    Is the resistance more than 1

    M?

    Go to step 4. Replace the airbag

    rear harness with

    body harness.

    4 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between the terminals

    of connector (3F) in the test harness F.

    Connector & terminal

    (3F) No. 3 (3F) No. 4:

    Is the resistance more than 1

    M?

    Go to step 5. Replace the airbag

    rear harness with

    body harness.

    5 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between connector

    (3F) in the test harness F and chassis ground.

    Connector & terminal

    (3F) No. 3 Chassis ground:

    (3F) No. 4 Chassis ground:

    Is the resistance more than 1

    M?

    Go to step 6. Replace the airbag

    rear harness with

    body harness.

  • 7/23/2019 Subaru Legacy

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    6 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between connector

    (3U) in the test harness U and chassis ground.

    Connector & terminal

    (3U) No. 20 Chassis ground:

    (3U) No. 18 Chassis ground:

    Is the resistance more than 1

    M?

    Replace the airbag

    control module.

    Replace the airbag

    rear harness with

    body harness.

    Step Check Yes No

  • 7/23/2019 Subaru Legacy

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    2. MODEL WITHOUT CURTAIN AIRBAG

    Step Check Yes No

    1 CHECK SIDE AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB25) from

    (AB24), and connect the connector (1F) in test

    harness F to connector (AB24).

    3) Connect the airbag resistor to the connec-

    tor (3F) in the test harness F.

    4) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the front

    seat with side air-

    bag module (RH).

    Go to step 2.

    2 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB26) from seat

    belt pretensioner (RH). 3) Disconnect the connector (AB33) from cur-

    tain airbag module (RH).

    4) Disconnect the airbag resistor from the test

    harness F.

    5) Disconnect the connector (AB18) from air-

    bag control module.

    6) Connect the connector (1R) in the test har-

    ness R to connector (AB18).

    7) Measure the resistance between connector

    (3R) in the test harness R and connector (3F)

    in the test harness F.

    Connector & terminal

    (3R) No. 20 (3F) No. 3:(3R) No. 18 (3F) No. 4:

    Is the resistance less than 10

    ?

    Go to step 3. Replace the airbag

    rear harness with

    body harness.

    3 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between connector

    (3R) terminals in the test harness R.

    Connector & terminal

    (3R) No. 20 (3R) No. 18:

    Is the resistance more than 1

    M?

    Go to step 4. Replace the airbag

    rear harness with

    body harness.

    4 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between the terminals

    of connector (3F) in the test harness F.

    Connector & terminal

    (3F) No. 3 (3F) No. 4:

    Is the resistance more than 1

    M?

    Go to step 5. Replace the airbag

    rear harness with

    body harness.

    5 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between connector

    (3F) in the test harness F and chassis ground.

    Connector & terminal

    (3F) No. 3 Chassis ground:

    (3F) No. 4 Chassis ground:

    Is the resistance more than 1

    M?

    Go to step 6. Replace the airbag

    rear harness with

    body harness.

  • 7/23/2019 Subaru Legacy

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    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    6 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS RH).

    Measure the resistance between connector

    (3R) in the test harness R and chassis ground.

    Connector & terminal

    (3R) No. 20 Chassis ground:

    (3R) No. 18 Chassis ground:

    Is the resistance more than 1

    M?

    Replace the airbag

    control module.

    Replace the airbag

    rear harness with

    body harness.

    Step Check Yes No

  • 7/23/2019 Subaru Legacy

    67/118AB(diag)-65

    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    O: DTC 42DTC DETECTING CONDITION: Side airbag harness (LH) is faulty. Side airbag module (LH) is faulty. Airbag control module is faulty.

    CAUTION: Before diagnosing the airbag system, be sure to turn the ignition switch OFF, disconnect theground terminal from battery, and wait more than 20 seconds before starting to work. Before replacing the airbag module, seat belt pretensioner, roll connector, control module andsensor, reconnect each part and confirm that the warning light operates properly. When inspecting the airbag main harness, disconnect the airbag module connector of the driversand passengers seats for safety reasons. When inspecting the airbag rear harness, disconnect the side airbag module connector, curtainairbag module connector and seat belt pretensioner connector for safety reasons.

    WIRING DIAGRAM:

    AB-00774

    AB231 2

    AB19

    AB20

    3 41 2

    109 1

    720

    16

    18

    AB19

    1 2

    AB17

    AB17 AIRBAG CONTROL MODULE

    INFLATOR(SIDE LH)

    SIDE AIRBAGSENSOR LH

    7 8 9 10 11 12

    13 14 15 16 17 18 19

    5 6

    20

    1 2 3 4

    AB23

    1 2 3 4

    :

    :

    WC

    OC

    WITH CURTAIN AIRBAG

    WITHOUT CURTAIN AIRBAG

    (WITH CURTAIN AIRBAG)

    AB17

    (WITHOUT CURTAIN AIRBAG)

    1 2 3 4 5 6

    7 8 9 10 11 12

    65 10

    12 79

    WC

    OC

  • 7/23/2019 Subaru Legacy

    68/118AB(diag)-66

    AIRBAG SYSTEM (DIAGNOSTICS)Diagnostic Chart with Trouble Code

    1. MODEL WITH CURTAIN AIRBAG

    Step Check Yes No

    1 CHECK SIDE AIRBAG MODULE.

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB20) from

    (AB19), and connect the connector (1F) in test

    harness F to connector (AB19).

    3) Connect the airbag resistor to connector

    (3F) in the test harness F.

    4) Connect the battery ground terminal and

    turn the ignition switch ON.

    Does the airbag warning light

    operate properly?

    Replace the front

    seat with side air-

    bag module (LH).

    Go to step 2.

    2 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS LH).

    1) Turn the ignition switch OFF, disconnect the

    battery ground terminal, and wait more than 20

    seconds.

    2) Disconnect the connector (AB21) from seat

    belt pretensioner (LH). 3) Disconnect the connector (AB31) from cur-

    tain airbag module (LH).

    4) Disconnect the airbag resistor from test

    harness.

    5) Disconnect the connector (AB17) from air-

    bag control module.

    6) Connect the connector (1U) in the test har-

    ness U to connector (AB17).

    7) Measure the resistance between connector

    (3U) in the test harness U and connector (3F)

    in the test harness F.

    Connector & terminal

    (3U) No. 12 (3F) No. 3:(3U) No. 10 (3F) No. 4:

    Is the resistance less than 10

    ?

    Go to step 3. Replace the airbag

    rear harness with

    body harness.

    3 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS LH).

    Measure the resistance between connector

    (3U) terminals in the test harness U.

    Connector & terminal

    (3U) No. 12 (3U) No. 10:

    Is the resistance more than 1

    M?

    Go to step 4. Replace the airbag

    rear harness with

    body harness.

    4 CHECK AIRBAG REAR HARNESS (SIDE

    AIRBAG MODULE HARNESS LH).

    Measure the resis