audi a4 current flow diagram no. 63 / 1

2.0l diesel engine , CAFA,CAGA,CAGB,CAGC,CAHA,CAHB,CMEA,CJCBFrom November 2007

Audi A4Audi A4Audi A4Audi A4 Current Flow DiagramCurrent Flow DiagramCurrent Flow DiagramCurrent Flow Diagram No. 63 / 1 No. 63 / 1 No. 63 / 1 No. 63 / 1 11.201111.201111.201111.2011

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Audi A4Audi A4Audi A4Audi A4 Current Flow DiagramCurrent Flow DiagramCurrent Flow DiagramCurrent Flow Diagram No. 63 / 2No. 63 / 2No. 63 / 2No. 63 / 2

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Battery, Terminal 15 voltage supply relayA - Battery

J329 - Terminal 15 voltage supply relay

J367 - Battery monitor control unit

J393 - Convenience system central control unit

T2x - 2-pin connector

T32d - 32-pin connector

624 - Earth point, starter battery

B299 - Positive connection 3 (30), in main wiring harness


B492 - Positive connection 3 (15), in interior wiring harness

* - From May 2009

*2 - Up to April 2009

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Battery isolation igniter, Jump start socketC24 - Suppression filter

J234 - Airbag control unit

N253 - Battery isolation igniter

SA2 - Fuse 2 in fuse holder A

T2y - 2-pin connector

T100 - 100-pin connector

U6 - Jump start socket

131 - Earth connection 2, in engine compartment wiring harness

500 - Threaded connection 1 (30), on relay plate

501 - Threaded connection 2 (30), on relay plate

A32 - Positive connection (30), in dash panel wiring harness


D50 - Positive connection (30), in engine compartment wiring

harness

D75 - Positive connection 2 (30), in engine compartment wiring

harness


harness

* - Cross section depends on equipment

*2 - gradual introduction

*3 - Gradually discontinued

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Starter, Alternator, Voltage regulator, Terminal 30 wiring junction 2, Jump start socketB - Starter

C - Alternator

C1 - Voltage regulator

S204 - Fuse 1 (30)

S205 - Fuse 2 (30)

T17e - 17-pin connector, red

T17q - 17-pin connector, red

T17r - 17-pin connector, white

TV22 - Terminal 30 wiring junction 2

U6 - Jump start socket


A52 - Positive connection 2 (30), in dash panel wiring harness

B698 - Connection 3 (LIN bus) in main wiring harness

* - see applicable current flow diagram for radiator fan

*2 - From May 2009



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Fuel pump relay, Terminal 30 voltage supply relay, Engine control unitJ17 - Fuel pump relay

J317 - Terminal 30 voltage supply relay

J623 - Engine control unit




B146 - Positive connection 1 (87), in interior wiring harness

D101 - Connection 1 in engine compartment wiring harness


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Starter motor relay, Engine control unit, Starter motor relay 2J53 - Starter motor relay

J393 - Convenience system central control unit


J695 - Starter motor relay 2

ST1 - Fuse carrier 1

SB1 - Fuse 1 on fuse holder B


T5l - 5-pin connector, in engine compartment






harness

D97 - Connection (50), in engine compartment right wiring harness


harness



*3 - From May 2009

*4 - see applicable current flow diagram for automatic gearbox


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Automatic glow period control unit, Engine control unitJ179 - Automatic glow period control unit


Q10 - Glow plug 1

Q11 - Glow plug 2

Q12 - Glow plug 3

Q13 - Glow plug 4




S39 - Engine glow plug strip fuse


12 - Earth point, on left in engine compartment







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Oil level and oil temperature sender, Engine control unit, Climatronic coolant shut-off valve, Pump for exhaust gas recirculation coolerG266 - Oil level and oil temperature sender

J255 - Climatronic control unit


N422 - Climatronic coolant shut-off valve




T17b - 17-pin connector, blue


T20e - 20-pin connector



V400 - Pump for exhaust gas recirculation cooler


B168 - Connection (86), in interior wiring harness


* - According to equipment

*2 - Cross section depends on equipment

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Engine control unit, Charge pressure control solenoid valve, Heater element for crankcase breather, Left electrohydraulic engine mounting solenoid valve, Air filter bypass flap valve, Exhaust gas recirculation cooler changeover valveJ623 - Engine control unit

N75 - Charge pressure control solenoid valve

N79 - Heater element for crankcase breather

N144 - Left electrohydraulic engine mounting solenoid valve

N275 - Air filter bypass flap valve

N345 - Exhaust gas recirculation cooler changeover valve



T5l - 5-pin connector, in engine compartment





* - Only models with crankcase breather heater element

*2 - see applicable current flow diagram for radiator fan

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Low heat output relay, High heat output relay, Engine control unit, Auxiliary air heater elementJ359 - Low heat output relay

J360 - High heat output relay


S126 - Auxiliary heater fuse

S328 - Auxiliary heater fuse 2




Z35 - Auxiliary air heater element

688 - Earth point 2, on centre tunnel

A49 - Connection 1, in dash panel wiring harness

A138 - Connection 2, in dash panel wiring harness


L81 - Connection in supplementary heater wiring harness

* - Only models with auxiliary air heater

*2 - From May 2010


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Accelerator position sender, Accelerator position sender 2, Engine control unitG79 - Accelerator position sender

G185 - Accelerator position sender 2


T6ag - 6-pin connector




B537 - Connection 28, in main wiring harness

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Engine speed sender, Hall sender, Variable intake manifold position sender, Engine control unit, Variable intake manifold motorG28 - Engine speed sender

G40 - Hall sender

G513 - Variable intake manifold position sender



V183 - Variable intake manifold motor

220 - Earth connection (sender earth), in engine wiring harness

327 - Earth connection (sender earth), in engine compartment

wiring harness



* - gradual introduction


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Throttle valve potentiometer, Exhaust gas recirculation potentiometer, Fuel pressure sender, Engine control unit, Exhaust gas recirculation valve, Intake manifold flap motorG69 - Throttle valve potentiometer

G212 - Exhaust gas recirculation potentiometer

G247 - Fuel pressure sender


N18 - Exhaust gas recirculation valve


V157 - Intake manifold flap motor



* - Wiring colour depends on equipment

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Charge pressure sender, Intake air temperature sender, Fuel temperature sender, Exhaust gas pressure sensor 1, Position sender for charge pressure positioner, Engine control unitG31 - Charge pressure sender

G42 - Intake air temperature sender

G81 - Fuel temperature sender

G450 - Exhaust gas pressure sensor 1

G581 - Position sender for charge pressure positioner







*2 - Wiring colour depends on equipment

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Air mass meter, Engine control unit, Fuel pressure regulating valve, Fuel metering valveG70 - Air mass meter


N276 - Fuel pressure regulating valve

N290 - Fuel metering valve








* - gradual introduction


*3 - Only models with automatic gearbox


*5 - Only models with manual gearbox

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Coolant temperature sender, Radiator outlet coolant temperature sender, Exhaust gas temperature sender 1, Exhaust gas temperature sender 3, Exhaust gas temperature sender 4, Engine control unitG62 - Coolant temperature sender

G83 - Radiator outlet coolant temperature sender

G235 - Exhaust gas temperature sender 1








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Lambda probe, Engine control unitE45 - Cruise control system switch

G39 - Lambda probe

J527 - Steering column electronics control unit




T6aa - 6-pin connector, brown

T16f - 16-pin connector




Z19 - Lambda probe heater

* - Only models with cruise control system (CCS)

*2 - Optional equipment



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Engine control unit, Injector, cylinder 1, Injector, cylinder 2, Injector, cylinder 3, Injector, cylinder 4J623 - Engine control unit

N30 - Injector, cylinder 1





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Clutch position sender, Engine control unitF36 - Clutch pedal switch

F194 - Clutch pedal switch for engine start

G476 - Clutch position sender

J540 - Control unit for electromechanical parking brake




SC2 - Fuse 2 on fuse holder C



T6g - 6-pin connector

T17q - 17-pin connector

T30a - 30-pin connector


370 - Earth connection 5, in main wiring harness

639 - Earth point, left A-pillar

B471 - Connection 7, in main wiring harness


* - Only models with manual gearbox


*3 - see applicable current flow diagram for automatic gearbox

*4 - From May 2009


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Brake light switch, Engine control unit, Supplementary fuel pumpF - Brake light switch

J255 - Climatronic control unit


J832 - Relay for supplementary fuel pump



T4k - 4-pin connector






V393 - Supplementary fuel pump


638 - Earth point, on right A-pillar

B335 - Connection 1 (54), in main wiring harness


* - Solenoid coil for brake light sensor


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Data bus diagnostic interface, Engine control unitJ217 - Automatic gearbox control unit

J533 - Data bus diagnostic interface






B383 - Connection 1 (powertrain CAN bus, high), in main wiring

harness

B385 - Connection 3 (powertrain CAN bus, high), in main wiring

harness

B390 - Connection 1 (powertrain CAN bus, low), in main wiring

harness

B392 - Connection 3 (powertrain CAN bus, low), in main wiring

harness

D159 - Connection (high bus), in engine compartment wiring harness

D160 - Connection (low bus), in engine compartment wiring harness

* - see applicable current flow diagram for automatic gearbox


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Control unit in dash panel insert, Data bus diagnostic interfaceJ285 - Control unit in dash panel insert

J533 - Data bus diagnostic interface


SD4 - Fuse 4 on fuse holder D

SD5 - Fuse 5 on fuse holder D



T46s - 46-pin connector

81 - Earth connection 1, in dash panel wiring harness

135 - Earth connection 2, in dash panel wiring harness

687 - Earth point 1, on centre tunnel

A1 - Positive connection (30a), in dash panel wiring harness

* - see applicable current flow diagram

*2 - see applicable current flow diagram for fuse assignment

*3 - From May 2009


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Fuel gauge sender, Fuel system pressurisation pump, Control unit in dash panel insertG - Fuel gauge sender

G6 - Fuel system pressurisation pump

G169 - Fuel gauge sender 2

J285 - Control unit in dash panel insert



T2af - 2-pin connector


T17f - 17-pin connector, brown

T17g - 17-pin connector, black



730 - Earth point 1, on right rear wheel housing

* - Only models with all-wheel drive

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Oil pressure switch, Gear detector switch, Coolant shortage indicator sender, Onboard supply control unit, Servotronic solenoid valve, Air conditioner compressor regulating valveF22 - Oil pressure switch

F208 - Gear detector switch

G32 - Coolant shortage indicator sender

J519 - Onboard supply control unit

N119 - Servotronic solenoid valve

N280 - Air conditioner compressor regulating valve

T2t - 2-pin connector

T17l - 17-pin connector



T32b - 32-pin connector

401 - Earth connection (sender earth), in interior wiring harness

* - Only models with manual gearbox

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audi a4 current flow diagram no. 63 / 1

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