mgb wiring diagrams in color.cdr

dmpA PUBLICATION© 2005

MGB, MGC, MGBV8WIRING DIAGRAMS

AUTO-WIREadvance

www.advanceautowire.com

May be reproduced for personal, non-commercial use only

AUTO

-WIR

Ea

dva

nce

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ep

rod

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van

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wire

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P

UB

LIC

AT

ION

5

© 2

00dm

p

+ -

BATTERIES

STARTER

SOLENOID

NY

NY

N

N

NG

GENERATOR

GENERATOR WARNING LAMP

REGULATOR

- +

U

LO

W B

EA

MS

IGNITIONSWITCH

HEADLIGHTSWITCH G

G

G G

P

W

W

N

W

N

RR

R

R

N

W

W

W

W

W

N

N

N

N

N

N

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

COURTESY/MAPLIGHT/SWITCH

RW

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWB

B

FUEL GAUGE & SENDER

GB

BRAKE SWITCH

G GP

GP

GP GP

FUEL PUMP

W

(LG/N)LG/N

LG/P

LG/P

LG/P

G

G

G

(GR)

RH REAR

RH FRONTGW

GW

GR

B

B

LG/U RH TSINDICATORgreen

LH REAR

LH FRONT

GR

G

G

G

G

LG/Y

B

B

LH TSINDICATOR

GR

GW

green

(GW)

TURN SIGNALFLASHER

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER

OIL PRESSURE/WATER TEMPERATURE

DIAGRAM 1 - 62/64 MGBFROM BENTLEY A8753AW

FUSE BOX

RADIO

HIG

H B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

UR

UW

UR

UW

B

B

B

B

U

DIMMERSWITCH

RG

WIPER MOTOR

WIPERSWITCH

G

1 2

3 4

5 6

7 8

N

CIGARLIGHTER B

W

DISTRIBUTOR

IGNITIONCOIL

WB

FR

ON

T P

AR

KIN

GL

IGH

TS

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

RR

R

RR

R

R

R

B

B

R

R

R

R

R

B

B HORNBUTTON

HORNS

P

P

PB

PB

PB

B

“FLASH-TO-PASSSWITCH”

*

HEATER FANSWITCH

HEATER FAN

GNGN

1

3

1 E2

D

F

OVERDRIVESOLENOID

TRANSMISSIONINTERLOCK SWITCH

THROTTLE SWITCHY

Y

W

OVERDRIVEON - OFF SWITCH YPYRYR

1 2

F

2

B F WL D E

1 2

3 4

5 6

7 8

C1C2

W1 W2

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O Orange

*These two switches are combined in one housing

LP

B

*TS SWITCH

sheet 1

3 4

1 2

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

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.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

+ -

BATTERIES

NY

NY

N

N

NG

GENERATOR

GENERATOR WARNING LAMP

REGULATOR

- +

U

LO

W B

EA

MS

IGNITIONSWITCH

HEADLIGHTSWITCH

G

G

G

G G

G

P

W

W

N

W

N

BG

R

R

R

R

N

W

W W

N

N

N

N

NN

N

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS


RW

W

WR

GAUGELAMP

DIMMERCONTROL

RWB

RWB

RWB

RWB

RWB

B

G

FUEL GAUGE & SENDER

B I

GAUGE VOLTAGESTABILIZER

GBLG/G

BRAKE SWITCH

G GP

GP

GP GP

REVERSE LIGHTS& SWITCH

GN

GNGNG

G

FUEL PUMPW

W

(LG/N)LG/N

LG/P

LG/P

LG/P

G

(GR)

GR

LG/U RH TSINDICATORgreen

LG/YLH TS

INDICATOR

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


DIAGRAM 2 - 64/67 MGBFROM BENTLEY B51798

FUSE BOX

B

GBBGREAR WINDOW DEFROSTER

& SWITCH - GT ONLY

RADIO

HIG

H B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

UR

UW

UR

UW

B

B

B

B

U

DIMMERSWITCH

RG

WIPER MOTOR

WIPERSWITCH

G

1 2

3 4

5 6

7 8

N

CIGARLIGHTER B

G

TACHOMETER

W

DISTRIBUTOR

IGNITIONCOIL

WB

FR

ON

T P

AR

KIN

GL

IGH

TS

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

R

R

R

RR

R

B

B HORNBUTTON

HORNS

P

P

PB

PB

PB

B

1 2

3 4

5 6

7 8


*

HEATER FANSWITCH

HEATER FAN

GNGN

1

2

3

1 E2

B F WL D E

D

F

OVERDRIVESOLENOID


THROTTLE SWITCHY

Y

W

OVERDRIVEON - OFF SWITCH YPYRYR

C1C2

W1 W2

1 2

F

STARTER

SOLENOID

RH REAR

RH FRONTGW

GW

B

B

LH REAR

LH FRONT

GR

G

G

G

G

B

BGR

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O Orange


3 4

1 2

sheet 2

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

+-

BATTERIES

STARTER

NB

NG

-Ind

NNY ALTERNATOR

REGULATOR

+

-+

F

U

LO

W B

EA

MS

IGNITIONSWITCH

HEADLIGHTSWITCH

G

G

G

G G

GP

P

W

W

N

W

N

BG

RR

R

R

N

W

W W

N

N

N

NN

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS


RW

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWB

B

G

FUEL GAUGE & SENDER

B I


GBLG/G

BRAKE SWITCH

G GP

GP

GP GP


GN

GNGN GNG

GG

FUEL PUMP

W

W

(LG/N)LG/NG

*TS SWITCH

L

TURN SIGNALFLASHER

B

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


DIAGRAM 3 - 67/68 MGBFROM BENTLEY E1898W

FUSE BOX

B


& SWITCH - GT ONLY

RADIO

N

CIGARLIGHTER

B

HIG

H B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

UR

UW

UR

UW

B

B

B

B

U

DIMMERSWITCH

RG

G

TACHOMETER

W

DISTRIBUTOR

IGNITIONCOIL

WB

FR

ON

T P

AR

KIN

GL

IGH

TS

R

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

R

R

R

R

R

R

B

B

R

R

R

R

R

B

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

PW

PW

PW

B P

COURTESY LAMP& DOOR SWITCHES

1 2

3 4

5 6

7 8


*

HEATER FANSWITCH

HEATER FAN

GNGN

1

2

3

OVERDRIVESOLENOID


YRYW

OVERDRIVEON - OFF SWITCH

YP

- F + B+

1 2

F

G

G

G

G

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

LH REAR

LH FRONT

GR

B

B

GR

GW

GW

B RH TSINDICATORgreen

GW

GR BLH TS

INDICATORgreen

(GW)

WIPER MOTORU/LG

R/LG

N/LG

G

WIPERSWITCH

G

1 2

3 4

5 6

7 8

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to.


3 4

1 2

sheet 3

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

+-

BATTERIES

U

LO

W B

EA

MS

IGNITIONSWITCH

ALTERNATOR WARNINGLAMP

STARTER HEADLIGHTSWITCH

G

G

G

G G

GP

P

W

W

N

W

N

BG

RR

R

R

WR

N

W

W WW

NY

WG

N

N

N

N

N

NN

N

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS


RW

ALTERNATOR

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWB

B

G

FUEL GAUGE & SENDER

B I


GBLG/G

BRAKE SWITCH

G GP

GP

GP GP


GN

GNGN GNG

GG

G

G

G

G

FUEL PUMP

W

W

(LG/N)LG/NG

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

LH REAR

LH FRONT

GR

B

B

GR

GW

GW


GW

GR BLH TS

INDICATORgreen

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER



-+

FUSE BOX

B


& SWITCH - GT ONLY

RADIO

WG

CIGARLIGHTER B

NY

IndInd

NN

+B+

HIG

H B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

UR

UW

UR

UW

B

B

B

B

U

DIMMERSWITCH

RG

23

4

51

G

TACHOMETER

W

DISTRIBUTOR

IGNITIONCOIL

WB

FR

ON

T P

AR

KIN

GL

IGH

TS

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

R

R

R

R

R

B

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

PW

PW

PW

B P


1 2

3 4

5 6

7 8

67


*

HEATER FANSWITCH

HEATER FAN

GNGN

G

WIPER MOTORU/LG

R/LG

N/LG

G

WIPERSWITCH

1 2

3 4

5 6

7 8

OVERDRIVESOLENOID


YRYW


YP

1 2

F



3 4

1 2

sheet 4

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

*HORNBUTTON

P

P

PB

PB

PB

B

B

C2W1

W2 C1

+-BATTERIES

U

LO

W B

EA

MS

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

G

G

GG

G

G

GP

P

P

W

W

N

W

N

N

RG

BG

RG

RG

RG

RG

WN

WN

N

W

W

W

WW

NY

WG

N

N

N

NN

N

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS


RW

ALTERNATOR

W

WR

GAUGELAMP

DIMMERCONTROL

RW

WG

WGRWB

RWB

RWB

RWB

RWB

1 2

3

6

7

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

R

R

R

R

R

B

B

Left

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

B

Left

Right

Right

FUEL GAUGE & SENDER

B I


GBLG/GLG/GB

BRAKE SWITCH

G GP

GP

GP GP

REVERSE LIGHTS& SWITCH GN

GNGN GNG

G G

HEATER FANSWITCH

HEATER FAN MOTOR

GYGY

G

FUEL PUMP

W

OVERDRIVESOLENOID


YRYW

W


(LG/N)LG/NG

(GR)

GR

GR

GW

GW

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

R

TACHOMETER

4

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER



W

DISTRIBUTOR

IGNITIONCOIL

WB

8

-+

FUSE BOX

B


& SWITCH - GT ONLY

RADIO

CIGARLIGHTER

B

NY

IndInd

NN

+B+

HIG

H B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

(UR)

(UW)

UR

UW

B

B

B

B

(U)(P)

DIMMER &FLASH-TO-PASS

SWITCH

*

1 2

3 4

5 6

7 8

5

RP

23

4

5

67

1

YP

WIPER MOTOR

U/LG

R/LG

N/LG

G

G

WIPERSWITCH

1 2

3 4

5

7 8

G

G

G

G

RH REAR

RH FRONTGW

GW

B

B

LH REAR

LH FRONT

GR

B

B

GR


GW

GR BLH TS

INDICATORgreen

PW

PW

PW

B P


6

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.*These three switches are combined in one housing

sheet 5

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

*HORNBUTTON

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

GG

G

G

G

P

P

P

P

PP

W

N

N

N

N

RG

RG

RG

RG

WG GK

WN

WN

N

W

W

W

WW

NY

(UR)

(UW)

UR

UW

WG

N

N

N

NN

N

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

B

B

B

B

ALTERNATOR

(U)(P)


SWITCH

*

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWB

1 2

3

6

7

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

R

R

R

R

R

B

B

Left

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

B

Left

Right

RightFUEL GAUGE & SENDER

B I


GBLG/G B

BRAKE SWITCH

G GP

GP

GP GP

REVERSE LIGHTS& SWITCH GN

GNGN GNG

GG

HEATER FANSWITCH

HEATER FAN MOTOR

GYGY

GK

FUEL PUMP

W

OVERDRIVESOLENOID


YPYRYW

W


(LG/N)LG/NG

*TS SWITCH

L

TURN SIGNALFLASHER

B

R

P

P

P

TACHOMETER

PW

PW

TRUNK/HATCHLAMP & SWITCHB

B

PW

PW

PW

4

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER



W

DISTRIBUTOR

IGNITIONCOIL

WB

RADIO

8

-+

FUSE BOX

1

2

3

4

CIGARLIGHTER

B

GK

GK

GK GK

GK

GK GK

NY

IndInd

NN

+B+

PWB

COURTESY/MAPLAMP & SWITCHES

1 2

3 4

5 6

7 8

WIPER MOTOR

U/LG

R/LG

N/LG

G

WIPERSWITCH

1 2

3 4

5

7 8

6

B


& SWITCH - GT ONLY

(GR)

GR

GR

GW

GW

(GW)

G

G

G

G

RH REAR

RH FRONTGW

GW

B

B

LH REAR

LH FRONT

GR

B

B

GR


GW

GR BLH TS

INDICATORgreen

5

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.*These two switches are combined in one housing

sheet 6

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

+-

BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH


STARTER

UW

UW

UW

UR

UR

W

W

W

W

W

W

N

N

N

N

WR

W

W

W

W

WNB

NG

Ind

(UR)

(UW)

UR

UW

N

N

NN

B

B

B

B

NNY ALTERNATOR

REGULATOR

(U)(P)


SWITCH

*

+

W

WR

1

G

G

G


GU

LG/G

TEMP GAUGE & SENDER

B I

LG/G

LG/G

B

FUEL GAUGE & SENDER

GB B

WASHER MOTOR


GN

GNGNGNG

G

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)

†WIPER/WASHERSWITCH

G

G

OVERDRIVESOLENOID


FUEL PUMP

YPY YRW

WW

†OVERDRIVEON - OFF SWITCH

(LG/N)

HAZARDFLASHER

LG/N

LG/N

LG/P

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

red

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

green

(GW)

*TS SWITCH

P L

W

DISTRIBUTOR

IGNITIONCOIL

WB

-+

FUSE BOX

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RWRW

RW

RW

RW

B

B

B

B

CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

1

23

*HORNBUTTON

HORNS

P

P

PB

PB

PB

B

P

PW

WG

WG

PW

PW

B P


CIGARLIGHTER

B

BRAKE FAILURESWITCH & LAMP

P

BW

B

R

R

R

GAUGELAMP

SWITCHRW

HEADLIGHTSWITCH R

R

34HEATER FAN

SWITCH

HEATER FAN MOTOR

GY1

34

G

G

HAZARDSWITCH

LG/N G

G

G

G

G

GR

GW

GW

GW

GW

GWL

TURN SIGNALFLASHER

B

2

3

4

5

6

1

G

TACHOMETER

WB

WB

BWB WB

RN

RN

REAR WINDOW DEFROSTER& SWITCH - GT ONLY

12

34


RADIO

R RG B

B+

43

2

FR

ON

T P

AR

KIN

GL

IGH

TS

R

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

R

RR

R

R

R

B

B

R

R

R

R

R

R

R

B

B

2 1

BRAKE SWITCH

G GP

GP

GP

B

- F + B+

OIL PRESSURE GAGE & SENDER

WN B

2

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.* and two switches combined in one housing† indicate /three

sheet 7

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

+-

BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH


STARTER

UW

UW

UW

UR

UR

W

W

W

W

W

N

WR

W

W

W

W

W

NY

NY

IndInd

(UR)

(UW)

UR

UW

N

N

N N

N

B

B

B

B

NN

ALTERNATOR

(U)(P)


SWITCH

*

+

W

WR

1

G

G

G


GULG/G

B

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I GBLG/G B

WASHER MOTOR


GN

GNGNGNG

G

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)


G

G

OVERDRIVESOLENOID


FUEL PUMP

YPY YRW

WW


W

DISTRIBUTOR

IGNITIONCOIL

WB

-+ FUSE BOX

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RWRW

RW

RW

RW

B

B

B

B

1

23

*HORNBUTTON

HORNS

P

P

PB

PB

PB

B

P

WG

WG

CIGARLIGHTER

B

BRAKE FAILURE& TEST SWITCH

& LAMP

P

BW

BW

B

R

R

R

GAUGELAMP

SWITCHRW

HEADLIGHTSWITCH R

34HEATER FAN

SWITCH

HEATER FAN MOTOR

GY12

34

GG

G

OIL PRESSUREGAGE & SENDER

WNB

TACHOMETER


RADIO

R RG B

B+

43

2

FR

ON

T P

AR

KIN

GL

IGH

TS

R

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

R

RR

R

R

R

B

B

R

R

R

R

R

R

R

B

B

2 1

BRAKE SWITCH

G GP

GP

GP

(LG/N)

HAZARDFLASHER

LG/N

LG/N

LG/P

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

red

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

green

(GW)

*TS SWITCH

P L

G

G

HAZARDSWITCH

LG/N G

G

G

G

G

GR

GW

GW

GW

GW

GWL

TURN SIGNALFLASHER

B

2

3

4

5

6

1

B

BWB

RN


WB

12

34

PW

PW

PW

B P


CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURECOLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.* and two switches combined in one housing† indicate /three

sheet 8

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

*HORNBUTTON

HORNS

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

UW

UW

UW

UR

UR

G

GG

G

G

G

G

G

PP

P

W

N

N

N

N

RG

WN

WN

W

W

W

W

W

W

NY

NY

IndInd

(UR)

(UW)

UR

UW

WG

N

N

N

NN

N

PK

WR

B

B

B

B

NN

ALTERNATOR

(U)(P)


SWITCH

*

+W

WR

1

3

5

R

R

R

R

G


GULG/G

B

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I GBLG/GLG/GB

WASHER MOTOR


& LAMP

BRAKE SWITCH

G GP

GP

GP


GN

GNGNGNG

G

G

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)


G

G

OVERDRIVESOLENOID


FUEL PUMP

YPY YRW

WW


LH DOORSWITCH

P

P

P P

P P

PW

WG

PW

PW

B

P


CIGARLIGHTER

B

BW

BW

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

8

BUZZER

-+

FUSE BOX

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RW

RW

RW

RW

RW

B

B

B

B

CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

1 2

35

N

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

RB

BLeft

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

Left

Right

R

RW

PK PG

B

B

B

B

B

U

U

UU

U

U

U

HEADLIGHTSWITCH RG

N

34

HEATER FANSWITCH

HEATER FAN MOTOR

GY1

34

GG

G


WNB

TACHOMETER

2

4

7


RADIO

RG

RG

RG

RG RP

GAUGELAMP

SWITCH

WG

BWB

RN


WB

12

34

(LG/N)

HAZARDFLASHER

LG/N

LG/N

LG/P

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

red

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

green

(GW)

*TS SWITCH

P

G

G

HAZARDSWITCH

LG/N G

G

G

G

G

GR

GW

GW

GW

GW

GWL

TURN SIGNALFLASHER

2

3

4

5

6

1

B L

B

2

6

FR

ON

T &

RE

AR

SID

E M

AR

KE

RS

2 1

B+


sheet 9

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

U

IGNITIONSWITCH

STARTERRELAY


STARTER

G

GG

G G

P

P

P

P

P

W

N

N

N

N

RG

WG GK

WN

WN

W

W

W

W

W

W

NY

NY

IndInd

(UR)

(UW)

WG

N

N

N

NN

N

PK

WR

NN

ALTERNATOR

(U)(P)


SWITCH

+W

WR

1

3

5

R

R

R

R

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER


GU

GBLG/GG B I LG/G

LG/G

B

WASHER MOTOR

BRAKE SWITCH


& LAMP

G GP

GP

GP


GN

GNGNGNG

GG

HE

AT

ER

FA

NS

WIT

CH

HEATER FAN MOTORGK

GK

GKGK

GK

GK GK

GY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)


GK

GK

OVERDRIVESOLENOID


FUEL PUMP

YPY YRW

WW


P

LH DOORSWITCH

P

WG

P

P

P

P P

P P

PW

PW

TRUNK/HATCHLAMP & SWITCH

PW

PW

PW

B

B

B

P

P


CIGARLIGHTER

B

BW

BW

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

RADIO

8

BUZZER

-+

FUSE BOX

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RW

RW

RW

RW

RW

B

B

B

B CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

1 2

35


N

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

Left

Right

R

RG

RGGAUGELAMP

DIMMERCONTROL

RW

PK PG

HEADLIGHTSWITCH RG

N

12

34

1 2

3 4

GG

G


WNB

TACHOMETER

2

4

6

7

(LG/N)

HAZARDFLASHER

LG/N

LG/N

LG/P

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

red

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

green

(GW)

*TS SWITCH

P

G

G

HAZARDSWITCH

LG/N G

G

G

G

G

GR

GW

GW

GW

GW

GWL

TURN SIGNALFLASHER

2

3

4

5

6

1

B L

B

BWB

RN


12

34

GT

ROADSTER

B

B

B

B

U

U

UU

U

U

U

FR

ON

T &

RE

AR

SID

E M

AR

KE

RS

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

UR

UW

B

B

B

B

*

B+

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.* and two switches combined in one housing† indicate

sheet 10

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

HORNBUTTON

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

GG

G

G

G

P

P

P

P

P

W

N

N

N

N

RG

RG

WG GK

WN

WN

W

W

W

WW

NYInd

(UR)

(UW)

UR

UW

WG

N

N

N

NN

N

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

B

B

B

B

N

ALTERNATOR

(U)(P)


SWITCH

*

+

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWB

1 2

3

6

7

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

RB

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

B

Left

Right

FUEL GAUGE & SENDER

B I


GBLG/GLG/GB

BRAKE SWITCH

G GP

GP

GP GP


GN

GNGN GNG

GG

HEATER FANSWITCH

HEATER FAN MOTOR

GYGY

GK

FUEL PUMP

W

OVERDRIVESOLENOID


YPYRYW

W


R

P

P

P

P

P

TACHOMETER

PW

PW


B

P

PW

PW

PW

B


CIGARLIGHTER

B

4

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


DIAGRAM 11 - 71/72 MGBFROM BENTLEY E3212AW

W

DISTRIBUTOR

IGNITIONCOIL

WB

RADIO

8

-+

FUSE BOX

1

2

3

4

GK

GK

GK GK

GK

GK GK

WIPER MOTOR

U/LG

R/LG

N/LG

G

WIPERSWITCH

1 2

3 4

5

7 8

6

(LG/N)LG/NG

*TS SWITCH

L

TURN SIGNALFLASHER

B

(GR)

GR

GR

GW

GW

(GW)

G

G

G

G

RH REAR

RH FRONTGW

GW

B

B

LH REAR

LH FRONT

GR

B

B

GR


GW

GR BLH TS

INDICATORgreen

HEADLIGHTSWITCH

5

U

RG

RG

N1 2

3 4

5 6

7 8

BWB

RN


12

34

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.* two switches combined in one housingindicates

sheet 11

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

BWB

RN


12

34

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

UW

UW

UW

UR

UR

G

G

GG

G

G

G

G

G

G

G

G

G

G

P

P

P

P

P

W

N

N

N

N

RG

RG

RG

WG GK

WN

WN

W

W

W

W

W

W

NYInd

(UR)

(UW)

UR

UW

WG

N

N

N

N

NN

N

PK

WR

B

B

B

B

N

ALTERNATOR

(U)(P)


SWITCH

*

+W

WR

GAUGELAMP

DIMMERCONTROL

RW

1 2

3

5 6

7

R

R

R

R

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I


GU

GBLG/GLG/G

LG/G

B

BRAKE SWITCH


& LAMP

G GP

GP

GP


GN

GNGNGNG

GG

FUEL PUMP

WW

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

red

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

7

P

LH DOORSWITCH

PKP

P

P

P

P

PG

P P

P P

TACHOMETER

PW

PW


PW

PW

PW

B

B

B

P

P


CIGARLIGHTER

B

BW

BW

B

4

B L

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

8

BUZZER

-+

FUSE BOX

8

1 2

35

DIAGRAM 12 - 71/72 MGBFROM BENTLEY E3212AW

OVERDRIVESOLENOID


YPY YRW


WASHER MOTOR

HE

AT

ER

FA

NS

WIT

CH

HEATER FAN MOTORGK

GK

GKGK

GK

GK GK

GY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)


GK

GK

RADIO

1 2

3 4

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RW

RW

RW

RW

RW

B

B

B

B CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

U

HEADLIGHTSWITCH

N

12

34RG

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

Left

Right

R

B

B

B

B

U

U

UU

U

U

U

FR

ON

T &

RE

AR

SID

E M

AR

KE

RS


sheet 12

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

GG

G

G G

P

P

P

P

P

W

N

N

N

N

RG

RG

RG

RG

WG GK

WN

WN

N

W

W

W

W

W

W

NYInd

(UR)

(UW)

UR

UW

WG

N

N

N

N

NN

N

PK

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

B

B

B

B

N

ALTERNATOR

(U)(P)


SWITCH

*

1

2

3

+W

WR

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

B

B

B

B

1 2

3

5 6

7

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/GG B I


LG/G

LG/G

B

WASHER MOTOR

BRAKE SWITCH


& LAMP

G GP

GP

GP


GN

GNGNGNG

GG

2

3

HE

AT

ER

FA

NS

WIT

CH

HEATER FAN MOTORGK

GK

GKGK

GK

GK GK

GYGY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)


GK

GK

OVERDRIVESOLENOID


FUEL PUMP

YPYYW

WW


LG/P

R

P

LH DOORSWITCH

PK

SEATBELTWARNING LAMP

SEATBELT BUCKLESWITCHES

G

P

P

P

P

P

NR

NRNR

NR

PG

PG

LG/W

LG/W

B

P P

P P

TACHOMETER

PW

PW


PW

PW

PW

B

B

B

P

P


CIGARLIGHTER

B

BW

BW

B

4

CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

RADIO

8

GEARBOX SWITCH

PASSENGER SEATSWITCH

DRIVER

PASSENGER

BUZZER

-+

FUSE BOX

G3

B

WB

WB

RN

RN


2

1 2

35

DIAGRAM 13 - 71/72 MGBFROM BENTLEY E3211BW

G

G

G

G

G

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

7

B L

8


sheet 13

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

HORNBUTTON

P

P

PB

PB

PB

B

C2W1

W2 C1

+-BATTERIES

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

UW

UW

UW

UR

UR

G

GG

G

G

G

P

P

P

P

P

W

W

N

N

N

RG

RG

WG GK

WN

WN

W

W

W

WW

(UR)

(UW)

UR

UW

WG

N

N

N

NN

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

B

B

B

B

ALTERNATOR

(U)(P)


SWITCH

*

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWBF

RO

NT

PA

RK

ING

&M

AR

KE

R L

IGH

TS

R

R

R

R

R

R

RB

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

B

Left

Right

FUEL GAUGE & SENDER

B I


GBLG/GLG/GB

BRAKE SWITCH

G GP

GP

GP GP


GN

GNGN GNG

GG

FUEL PUMP

W

OVERDRIVESOLENOID


YPYRYW

W


R

P

P

P

P

P

G

TACHOMETER

PW

PW


B

P

PW

PW

PW

B


CIGARLIGHTER

B

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


DIAGRAM 14 - 72/73 MGBFROM BENTLEY 3NB064

W

DISTRIBUTOR

IGNITIONCOIL

WB

WB

WB

-+

FUSE BOX

GK GK

GK GK

(LG/N)LG/NG

*TS SWITCH

L

TURN SIGNALFLASHER

B

(GR)

GR

GR

GW

GW

(GW)

G

G

G

G

RH REAR

RH FRONTGW

GW

B

B

LH REAR

LH FRONT

GR

B

B

GR


GW

GR BLH TS

INDICATOR

HEADLIGHTSWITCH


NYInd

NN

Batt + +

G3

B

WB

WB

RN

RN


2

WIPER MOTOR

U/LG

R/LG

N/LG

GK

WIPERSWITCH

GK

1

34

5

2

RADIO

GK

1

2

3

HEATER FANSWITCH

HEATER FANMOTOR

GY

U

RG

N

1

3

green

12

3

5

2

1 2

3

7

4

8

5 6

sheet 14

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

G

C2W1

W2 C1

+-BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

G

GG

G

G

G

G

G

WB

P

P

P

P

P

W

N

N

N

W

RG

RG

RG

RG

RG

WN

WNWR

N

NW

W

W

NYIndbatt

(UR)

(UW)

UR

UW

WG

WG

N

N

N

NN

N

PK

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RW

RW

RW

RW

B

B

B

ANTI RUN-ONVALVE & SWITCH

NN

ALTERNATOR

(U)(P)


SWITCH

*

+

S

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B

B

B

1

3

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I


GU

GBLG/GLG/G

LG/G

B

WASHER MOTOR

BRAKE SWITCH


& LAMP

G GP

GP

GP


GN

GNGNGNG

GG

2

3

2

HE

AT

ER

FA

NS

WIT

CH

HEATER FAN MOTOR

GK

GK

GK

GY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)


GK

GK

OVERDRIVESOLENOID


FUEL PUMP

YPYY

W

W W


R

P

LH DOORSWITCH

PG

PK



G

P

P

P

P

NR NR

NR

NR

PG

PG

PG

LG/W

LG/O

P

TACHOMETER

SP SY

PW

PW


PW

PW

PW

B

B

B

P

P P

P

P

P

P


CIGARLIGHTER

B

BW

BW

B

4

CIGAR LIGHTER

HEATER FAN

FUEL LEVEL

TEMPERATURE

SPEEDOMETER

TACHOMETER

HEADLIGHT SWITCH

OIL PRESSURE

HAZARD SWITCH

HEATER CONTROL

HEATER CONTROL

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

WB

RADIO

GEARBOX SWITCH

SEAT “BUTT”SWITCH

BU

ZZ

ER

-+

FUSE BOX

LG/P

G

G

G

G

G

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

5

B L

6

3

1

6

7

5

2

G

B

WB

WB

RN

RN


2

3


8


16

4 2

5

3

UW

UW

UR

UR

B

B

B

B

PSNGR PSNGR

DRIVER

sheet 15

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

RADIO

GK

B

1

2

3

HEATER FANSWITCH

HEATER FANMOTOR

GY

C2

W1W2

C1

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

URG

G

G

G

G

G

G

PPN

N

W

RG

RG RG

WN

WN

N

N

W

W

W

W

NYInd

(UR)

(UW)

UR

UW

N

N

N

N

N N

N

NN

N

B

B

B

B

NN

ALTERNATOR

(U)(P)


SWITCH

*

1

Batt + +

WR

WG

GKWG

1

3

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

R

R

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

SR

R

RR

R

R

R

B

B

Left

Right

G

GB I


LG/G

FUEL GAUGE & SENDER

GBLG/G

B

REVERSE SWITCH

REVERSELIGHTS

GN

GP

GN

GP

GN

GP

GN

GP

G

OVERDRIVESOLENOIDTRANSMISSION

INTERLOCK SWITCH

FUEL PUMP


W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/N

LG/N

G

G

G

G

G

N

(GR)

RH REAR

RH FRONT

GW

GW

GR

GR

B

B


LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

7

R

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

TACHOMETERWB

WB

P

P

4

B L

YPYRYW

2

3

REAR WINDOWDEFROSTER SWITCH

CIGARLIGHTERB

PW

PW

PW


B

P P

TRUNK OR HATCHLAMP & SWITCH

P

P

PW

PW

B

B

GT

Roadster

N

G

G

BRAKE SWITCH

BRAKELIGHTS

B

HORNBUTTON

HORNS

PB

PB

P

P

REAR WINDOW DEFROSTER& INDICATOR (GT only)

RN

WB

8

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

GAUGELAMP

DIMMERCONTROL

RWRG

RWB

RWB

RWB

RWB

RWB CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


WIPER MOTOR

U/LG

R/LG

N/LG

GK

WIPERSWITCH

GK

1

34

5

GK GK

GK GK

2

1

2

3

5

+-

BATTERIES

-+

2

3



5

2

6

7 8

sheet 16

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

G

C2W1

W2 C1

+-BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

GG

G

G

G

G

G

WB

P

P

P

P

P

W

N

N

N

N

NP

WRG

RG

RG

RG

RG

WN

WNYK

N

NW

W

W

NYIndbatt

(UR)

(UW)

UR

UW

(WG)

N

(N)

N

N

NN

N

(PK)

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B


NN

ALTERNATOR

(U)(P)


SWITCH

*

+

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B

B

B

1

3

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I


GU

GBLG/GLG/G

LG/G

B

WASHER MOTOR

BRAKE SWITCH


& LAMP

G GP

GP

GP


GN

GNGNGNG

GG

2

3

HE

AT

ER

FA

NS

WIT

CH HEATER FAN MOTOR

GK

GY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)

WIPER/WASHERSWITCH

GK

GK

OVERDRIVESOLENOID


FUEL PUMP

YPYY

W

W W


R

P

LH DOORSWITCH

PG

PK



G

G

P

P

P

P

P

YP

YK

YU

YU

YG

YG

YW

YN

NP

NP

NP

NP

NP

PG

SEATBELTMODULE

WR

YO

YO

B

P

P

TACHOMETER

SP SY

PW

PW


PW

PW

PW

B

B

B

P

P


CIGARLIGHTER

B

BW

BW

B

4

CIGAR LIGHTER

HEATER CONTROL

HEATER FAN

FUEL LEVEL

TEMPERATURE

SPEEDOMETER

TACHOMETER

HEADLIGHT SWITCH

HAZARD SWITCH

HEATER CONTROL

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.


HORNBUTTON

HORNS

P

P

PB

PB

PB

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

WB

1 2 3

4 5 6

7 8 9

10 11 12

RADIO

GEARBOX SWITCH

SEAT SWITCHES

DRIVER

DRIVER

PSNGR

PSNGR

BU

ZZ

ER

-+

B

OIL PRESSURE

FUSE BOX

LG/P

G

G

G

G

G

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

5

B L

2

1

6

7 8

5

2

G

B

WB

WB

WB

WB


2

3

3

6

sheet 17

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

C2W1

W2 C1

BATTERY

U

IGNITIONSWITCH

STARTERRELAY

RADIOCONNECTION


STARTER

HEADLIGHTSWITCH

G

G

G G

PP

P

W

N

N

N

N

RG

RG

RG

WN

WN

N

W

W

W

W

W

NYInd

WG

N

N

N

N

NN

N

WR

NN

ALTERNATOR

+

WR

1 2

3

5 6

GG

WASHER MOTOR

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)

WIPER/WASHERSWITCH

G

OVERDRIVESOLENOID


FUEL PUMP

YPY YRYW


P

P

P

PW

PW

PW

B

PP

P

P

P


CIGARLIGHTER

B

4

COLOR CODESN Brown LG Light Green G GreenU Blue W White B BlackR Red Y Yellow K PinkP Purple S Slate O OrangeWire colors shown in ( ) are supplied as part of the component they are connected to. = one pin of a multi pin connector.

WLG

WLG

WLG

DISTRIBUTOR

IGNITIONCOIL

WB

WB

WB

8

-+FUSE BOX

WBWBB B

B

REAR WINDOW DEFROSTER, SWITCH & INDICATOR LAMP - GT ONLY

1 2

35


G

G

G

G

G

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/N

LG/N

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B


LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

7

B L

8RG

GAUGELAMP

DIMMERCONTROL

RW

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

(UR)

(UW)

UR

UW

B

B

B

B

(U)(P)


SWITCH

*

W

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

Left

Right

R

R

R

R

R

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RW

RW

RW

B

B

B

CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

P

PP

P

P

PW

PW


B

C2

W1

W2

C1 G

G

3

RN

RN

2

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

1

3

BRAKE SWITCH& LIGHTS

G GP

GP

GP


GN

GNGNGNG

B

FUEL GAUGE & SENDER

GBLG/GG B I


LG/GB

2

3

HEATER FANSWITCH

HEATER FAN MOTOR

GYGY

G

G

TACHOMETER

G

72

sheet 18

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

B

HEATER FANSWITCH

G

GY

C1

W1

W2

C2

+-BATTERY

HIG

H B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

RADIOCONNECTION

UW

UW

G

G G

G

G

G

G

G

G

G

G

G

G

G

GK

G

WB

PP

W

WN

N

N

N

W

RG RG

NW

NW

W

W

W

NYInd

(UR)

(UW)

WG (WG)

(N) (PK)

EGR SERVICECOUNTER & LAMP

WR

WR

GKG

GK

WW/LG

B


N

ALTERNATOR

(U)(P)


SWITCH

LO

W B

EA

MS

UW

UR

UR

UR

UW

B

B

B

*

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

2

35

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

B

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/G

G

G

B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G/K)

WASHER MOTOR

WIPER/WASHERSWITCH

BRAKESWITCH

G

G

GP

GP

GP


GN

GNGNGNG

G

G

G

G

G

IND

UC

TIO

NH

EA

TE

RG

OVERDRIVESOLENOID


YPYPYRY YWW

FUEL PUMP

W

W


INERTIASWITCH

W

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

7

R

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WLG

WLG

SP SY

4

B

L

HEATER FAN MOTOR

2

1


RG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW RW RW

B

B

CIGAR LIGHTER

HAZARD SWITCH

RW

RW

RW

RW

B

B

B

B

TEMPERATURE

SPEEDOMETER

OIL PRESSURE

HEATER FAN

RW

RW

RW

RW

RW

B

B

B

B

B

HEATER CONTROL

HEADLIGHT SWITCH

HEATER CONTROL

TACHOMETER

FUEL LEVEL

HORNBUTTON

P

PB

PB

PB

B

LH DOORSWITCH

PG

PK

NP

NN

N

N

U

HEADLIGHTSWITCH

RG

RGN

2

1

3

P

P


& LAMP

P

P

P

P

PW

PW

PW

B

PPWB

P

P


CIGARLIGHTER

B

BW

BW

B

P

P

17 8

6

3

1975 MGB W/PERIOD WARNINGFROM LATE BENTLEY

SEATBELT WARNING LAMP

SEATBELT BUCKLESWITCH

G

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

TRUNK LAMP& SWITCH

1

2

3

45

6

8

B

sheet 19

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

GW

HEATER FANSWITCH

G

GY

C1

W1

W2

C2

+-BATTERY

HIG

H B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

RADIOCONNECTION

UW

UW

G

G G

G

G

G

G

G

G

G

G

G

G

G

GK

G

WB

PP

W

WN

N

N

N

N

W

RG RG

NW

W

W

W

NYInd

(UR)

(UW)

WG (WG)

(N) (PK)


WR

WR

GKG

GK

WW/LG

B


N

ALTERNATOR

(U)(P)


SWITCH

LO

W B

EA

MS

UW

UR

UR

UR

UW

B

B

B

*

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

2

35

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/G

G

G

B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G/K)

WASHER MOTOR

WIPER/WASHERSWITCH

BRAKESWITCH

G

G

GP

GP

GP


GN

GNGNGN

G

G

G

G

G

IND

UC

TIO

NH

EA

TE

RG

OVERDRIVESOLENOID


YPYPYRY YWW

FUEL PUMP

W

W


INERTIASWITCH

W

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WLG

WLG

SP SY

4

B

B

L

HEATER FAN MOTOR

1975 MGB W/SEQUENTIAL SEAT BELTWARNING FROM LATE BENTLEY

2

1


RG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW RW RW

B

B

CIGAR LIGHTER

HAZARD SWITCH

RW

RW

RW

RW

B

B

B

B

TEMPERATURE

SPEEDOMETER

OIL PRESSURE

HEATER FAN

RW

RW

RW

RW

RW

B

B

B

B

B

HEATER CONTROL

HEADLIGHT SWITCH

HEATER CONTROL

TACHOMETER

FUEL LEVEL

HORNBUTTON

HORNS

P

P

PB

PB

PB

B


G

G

YP

YK

YU

YU

YG

YG

YW

YN

NP

NP

NP

NP

NP

PG

SEATBELTMODULE

WR

WR

YO

YO

B1 2 3

4 5 6

7 8 9

10 11 12

GEARBOX SWITCH

SEAT SWITCHES

DRIVER

DRIVER

PSNGR

PSNGR

BU

ZZ

ER


LH DOORSWITCH

PG

PK

NP

NN

N

N

U

HEADLIGHTSWITCH

RG

RGN

2

1

3

P

P


& LAMP

P

P

P

P

TRUNKLAMP & SWITCH

PW

PW

PW

B

PPWB

P

P


CIGARLIGHTER

B

BW

BW

B

P

P

17 8

6

3

G

G

sheet 20

WN

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

GW

HEATER FANSWITCH

G

GY

C1

W1W2

C2

+-BATTERY

U

HIG

H B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

GK

G

WB

P

P

P

P

W

WN

N

NP

NP

N

N

W

RG

RG RG

N

NW

W

GGO

GOGO

GO

W

W

NYInd

(UR)

(UW)

WG (WG)

N

N (N)N

N

NN

N

(PK)


WR

WR

GKG

GK

W

W

W

W

WUW/LG

B


N

ALTERNATOR

(U)(P)


SWITCH

LO

W B

EA

MS

UW

UR

UR

UR

UW

B

B

B

*

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

1 2

35 6

7 8

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/G

G

G

B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G/K)

WASHER MOTOR

WIPER/WASHERSWITCH

BRAKESWITCH

HAND BRAKESWITCH & LAMP

BRAKE FAILURESWITCH

G

G

G

G

GP

GP

GP

WR

WR


GN

GNGNGNG

G

G

G

G

G

G

G

IND

UC

TIO

NH

EA

TE

RG

OVERDRIVESOLENOID


YPYPYRY YWW

FUEL PUMP

W

W


INERTIASWITCH

W

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

P

LH DOORSWITCH

PG

PK



G

P P

P

P

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

B

P

P

DIS

TR

IBU

TO

R

DISTRIBUTORRESISTOR

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WB

WLG

WLG

SP SY

PW

PW

PW

TRUNK LAMP& SWITCH

PW

B

P


CIGARLIGHTERB

4

B

B

L

HEATER FAN MOTOR

1976 MGB W/CAT CONVFROM LATE BENTLEY

2

3

1


2

1

3

RG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW RW RW

B

B

CIGAR LIGHTER

HAZARD SWITCH

RW

RW

RW

RW

B

B

B

B

TEMPERATURE

SPEEDOMETER

OIL PRESSURE

HEATER FAN

RW

RW

RW

RW

RW

B

B

B

B

B

HEATER CONTROL

HEADLIGHT SWITCH

HEATER CONTROL

TACHOMETER

FUEL LEVEL

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

NOT USED - LEFT OVER FROM1974 - 1975 MODELS WITH SEATBELT INTERLOCK SYSTEM

1

2

3

45

6

sheet 21

WN

WN

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

GW

HEATER FANSWITCH

G

GY

C1

W1W2

C2

+-BATTERY

U

HIG

H B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

GK

G

WB

P

P

P

P

W

WN

N

NP

NP

N

N

W

RG

RG RG

N

NW

W

GGO

GOGO

GO

W

W

NYInd

(UR)

(UW)

WG (WG)

N

N (N)N

N

NN

N

(PK)

WW/LG

B


N

ALTERNATOR

(U)(P)


SWITCH

LO

W B

EA

MS

UW

UR

UR

UR

UW

B

B

B

*

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

1 2

35 6

7 8

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/G

G

G

B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G/K)

WASHER MOTOR

WIPER/WASHERSWITCH

BRAKESWITCH


BRAKE FAILURESWITCH

G

G

G

G

GP

GP

GP

WR

WR


GN

GNGNGNG

G

G

G

G

G

G

G

IND

UC

TIO

NH

EA

TE

RG

OVERDRIVESOLENOID


YPYPYRY YWW

FUEL PUMP

W

W


INERTIASWITCH

W

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

P

LH DOORSWITCH

PG

PK



G

P P

P

P

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

B

P

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WLG

WLG

SP SY

PW

PW

PW

TRUNK LAMP& SWITCH

PW

B

P


CIGARLIGHTERB

4

B

B

L

HEATER FAN MOTOR

1976 MGB W/O CAT CONVFROM LATE BENTLEY

2

3

1


2

1

3

RG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW RW RW

B

B

CIGAR LIGHTER

HAZARD SWITCH

RW

RW

RW

RW

B

B

B

B

TEMPERATURE

SPEEDOMETER

OIL PRESSURE

HEATER FAN

RW

RW

RW

RW

RW

B

B

B

B

B

HEATER CONTROL

HEADLIGHT SWITCH

HEATER CONTROL

TACHOMETER

FUEL LEVEL

HORNBUTTON

HORNS

P

P

PB

PB

PB

B


1

2

3

45

6

sheet 22

WN

WN

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

HEATER FANSWITCH

G

GY

C1

W1W2

C2

+-BATTERY

U

HIG

H B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

GK

G

WB

PP

W

N

NP

N

W

RG

RG RG

N

NW

GGO

GOGO

GO

W

W

NYInd

(UR)

(UW)

WG (WG)

N

(N)N

N

NN

N

(PK)


WR

WR

GKG

G

GK

W

W

W

W

WUW/LG

B


N

ALTERNATOR

(U)(P)


SWITCH

LO

W B

EA

MS

UW

UR

UR

UR

UW

B

B

B

*

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

1 2

35 6

8

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/G

G

G

B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G/K)

WASHER MOTOR

WIPER/WASHERSWITCH

BRAKESWITCH


BRAKE FAILURESWITCH

G

G

G

G

GP

GP

GP

WR

WR


GN

GNGNGNG

G

G

G

G

G

G

G

IND

UC

TIO

NH

EA

TE

RG

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

LH DOORSWITCH

PG

PK



G

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

B

P

P

DIS

TR

IBU

TO

R

DISTRIBUTORRESISTOR

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WB

WLG

WLG

SP SY

4

B

B

L

HEATER FAN MOTOR

1977 MGB W/CAT CONVFROM LATE BENTLEY

2

3

1


2

1

3

RG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW RW RW

B

B

CIGAR LIGHTER

HAZARD SWITCH

RW

RW

RW

RW

B

B

B

B

TEMPERATURE

SPEEDOMETER

OIL PRESSURE

HEATER FAN

RW

RW

RW

RW

RW

B

B

B

B

B

HEATER CONTROL

HEADLIGHT SWITCH

HEATER CONTROL

TACHOMETER

FUEL LEVEL

HORNBUTTON

HORNS

P

P

PB

PB

PB

B1

2

3

45

6

W

W

INERTIASWITCH

WOVERDRIVE SOLENOID


FUEL PUMP

YPY

Y YR

Y

W

W


SPARKCONTROL SWITCH

SPARK ADVANCESOLENOID

P

P

WN

NP

P

P P

P

P

PW

PW

PW

TRUNK LAMP& SWITCH

PW

B

P


CIGARLIGHTERB


THERMOSTAT

CO

OL

ING

FA

NS

WN

7

BG

BG BG

sheet 23

WN

WN

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

GW

**

**May be a circuit breakerinstead of a fuse.

HEATER FANSWITCH

G

GY

C1

W1W2

C2

+-BATTERY

U

HIG

H B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

GK

G

WB

P

P

P

P

W

WN

N

NP

NP

N

W

RG

RG RG

N

NW

GGO

GOGO

GO

W

W

NYInd

(UR)

(UW)

WG (WG)

N

N

(N)N

N

NN

N

(PK)

WW/LG

B


N

ALTERNATOR

(U)(P)


SWITCH

LO

W B

EA

MS

UW

UR

UR

UR

UW

B

B

B

*

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

1 2

35 6

8

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/G

G

G

B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G/K)

WASHER MOTOR

WIPER/WASHERSWITCH

BRAKESWITCH


BRAKE FAILURESWITCH

G

G

G

G

GP

GP

GP

WR

WR


GN

GNGNGNG

G

G

G

G

G

G

G

IND

UC

TIO

NH

EA

TE

RG

W

W

INERTIASWITCH

W

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

P

LH DOORSWITCH

PG

PK



G

P P

P

P

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

B

P

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WLG

WLG

SP SY

PW

PW

PW

TRUNK LAMP& SWITCH

PW

B

P


CIGARLIGHTERB

4

B

B

L

HEATER FAN MOTOR

1977 MGB W/O CAT CONVFROM LATE BENTLEY

2

3

1


2

1

3

RG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW RW RW

B

B

CIGAR LIGHTER

HAZARD SWITCH

RW

RW

RW

RW

B

B

B

B

TEMPERATURE

SPEEDOMETER

OIL PRESSURE

HEATER FAN

RW

RW

RW

RW

RW

B

B

B

B

B

HEATER CONTROL

HEADLIGHT SWITCH

HEATER CONTROL

TACHOMETER

FUEL LEVEL

HORNBUTTON

HORNS

P

P

PB

PB

PB

B


1

2

3

45

6

THERMOSTAT

CO

OL

ING

FA

NS

OVERDRIVE SOLENOID


FUEL PUMP

YPY

Y YR

Y

W

W


SPARKCONTROL SWITCH

SPARK ADVANCESOLENOID

7

BG

BG BG

sheet 24

WN

WN

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

**


G

HEATER FANSWITCH

G

G

GY

GN

C1

W1W2

C2

C1

W1 W2

C2

+-BATTERY

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

IGNITIONRELAY

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

WB

P

P

P

P

WN

WN

N

N

N

WN

WN

RG

RG

RG

WN

WN

N

NW

W

GGO

GOGO

GO

W

W

NYInd

(UR)

(UW)

UR

UW

WG (WG)

N

(N)

N

N

N

(PK)


WR

WR

GKG

GK

W

W

WN

W

WUW/LG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B


N

ALTERNATOR

(U)(P)


SWITCH

*

+

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

1 2

35 6

7 8

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/GG B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)

WASHER MOTOR

INDUCTIONHEATER

WIPER/WASHERSWITCH

BRAKESWITCH

BRAKELIGHTS


BRAKE FAILURESWITCH

G

G

G

G

GP

GP

GP

WR

WR


GN

GNGNGNG

G

G

G

G

G

G

G

G

OVERDRIVE SOLENOID


FUEL PUMP

YPY

Y YR

YYPWN

W

W


SPARKCONTROL SWITCH SPARK ADVANCE

SOLENOID

INERTIASWITCHW

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

P

LH DOORSWITCH

PG

PK



G

P P

P

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

B

1

2

3

45

6

HORNBUTTON

HORNS

P PB

PB

B B

P

P

THERMOSTAT

CO

OL

ING

FA

NS

DIS

TR

IBU

TO

R

DISTRIBUTORRESISTOR

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WB

WLG

WLG

SP SY

PW

PW

PW

CLOCK

TRUNK LAMP& SWITCH

PW

B

B

P

P

P


CIGARLIGHTERB

4

B L

CIGAR LIGHTER

HEATER CONTROL

HEATER CONTROL

FUEL LEVEL

TEMPERATURE

SPEEDOMETER

TACHOMETER

CLOCK

OIL PRESSURE

HAZARD SWITCH

HEATER FAN

BG

BG BG

HEATER FAN MOTOR

1978 & LATER MGBFROM BENTLEY

2

3

1


NN

2

1

3

Batt

NP


sheet 25

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

GW

**


G

MGC - UK MARKETFROM BENTLEY

+-

BATTERIES

STARTER

NB

NG

-Ind

NNY ALTERNATOR

ALTERNATORWARNING LAMP

REGULATOR

+

-+

F

U

LO

W B

EA

MS

IGNITIONSWITCH

HEADLIGHTSWITCH

G

G

G

G

G

GP

P

W

W

N

W

N

BG

RR

R

R

N

NN

N

W

W W

N

N

NN

N

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS


RW

W

WR

GAUGELAMP

DIMMERCONTROL

RW

RWB

RWB

RWB

RWB

RWB

B

G

FUEL GAUGE & SENDER

B I


GBLG/G

BRAKE SWITCH

G GP

GP

GP GP


GN

GNGN GNG

GG

FUEL PUMP

W

W

(LG/N)LG/NG

*TS SWITCH

L

TURN SIGNALFLASHER

B

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


FUSE BOX

B


& SWITCH - GT ONLY

N

CIGARLIGHTER

B

HIG

H B

EA

MS

HIGH BEAM INDICATOR

UW

UW

UW

UR

UR

UR

UW

UR

UW

B

B

B

B

U

DIMMERSWITCH

RG

G

TACHOMETER

W

DISTRIBUTOR

IGNITIONCOIL

WB

FR

ON

T P

AR

KIN

GL

IGH

TS

R

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

R

R

R

R

R

R

B

B

R

R

R

R

R

B

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

PW

PW

PW

B P


1 2

3 4

5 6

7 8


*

HEATER FANSWITCH

HEATER FAN

GNGN

1

3

OVERDRIVESOLENOID


YRYW


YP

- F + B+

1 2

F

G

G

G

G

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

B

B

LH REAR

LH FRONT

GR

B

B

GR

GW

GW


GW

GR BLH TS

INDICATORgreen

(GW)

WIPER MOTORU/LG

R/LG

N/LG

G

WIPERSWITCH

G

1

3

5

7

RADIO



2

2

4

6

8

3 4

21

sheet 26

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

+-

BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH


STARTER

UW

UW

UW

UR

UR

W

W

W

W

W

W

N

N

N

N

WR

W

W

W

W

WNB

NG

Ind

(UR)

(UW)

UR

UW

N

N

NN

B

B

B

B

NNY ALTERNATOR

REGULATOR

(U)(P)


SWITCH

*

+

W

WR

G

G

G


GU

LG/G

TEMP GAUGE & SENDER

B I

LG/G

LG/G

B

FUEL GAUGE & SENDER

GB B

WASHER MOTOR


GN

GNGNGNG

G

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)


G

G

OVERDRIVESOLENOID


FUEL PUMP

YPY YRW

WW


(LG/N)

HAZARDFLASHER

LG/N

LG/N

LG/P

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

red

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

green

(GW)

*TS SWITCH

P L

W

DISTRIBUTOR

IGNITIONCOIL

WB

-+

FUSE BOX

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RWRW

RW

RW

RW

B

B

B

B

CIGAR LIGHTER

FUEL LEVEL

WATER TEMPERATURE

SPEEDOMETER

TACHOMETER

OIL PRESSURE

1

*HORNBUTTON

HORNS

P

P

PB

PB

PB

B

P

PW

WG

WG

PW

PW

B P


CIGARLIGHTER

B

BRAKE FAILURESWITCH & LAMP

P

BW

B

R

R

R

GAUGELAMP

SWITCH

COURTESY LAMP

RW

HEADLIGHTSWITCH R

R

34HEATER FAN

SWITCH

HEATER FAN MOTOR

GYGN1

34

G

G

HAZARDSWITCH

LG/N G

G

G

G

G

GR

GW

GW

GW

GW

GWL

TURN SIGNALFLASHER

B

2

3

4

5

6

1

G

TACHOMETER

WB

WB

BWB WB

RN

RN


12

34

MGC - US MARKETFROM BENTLEY

RADIO

R RG B

F+

FR

ON

T P

AR

KIN

GL

IGH

TS

R

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

R

RR

R

R

R

B

B

R

R

R

R

R

R

R

B

B

2 1

BRAKE SWITCH

G GP

GP

GP

B

- F + B+

OIL PRESSURE GAGE & SENDER

WN B

2


23

1

3

2

4

sheet 27

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

B

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

C2W1

W2 C1

C2

W1C1

+-BATTERIES

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

UW

UW

UW

UR

UR

G

G

G

G

G

G

G

G

G

G

G

G

P

P

P

P

W

NN

N

RG

RG

RG

WG GK

WN

WN

W

W

W

W

W

NYInd

(UR)

(UW)

UR

UW

WG

N

N

N

N

N

WR

B

B

B

B

N

ALTERNATOR

(U)(P)


SWITCH

*

+W

WR

GAUGELAMP

DIMMERCONTROL

RW

R

R

FUEL GAUGE & SENDER

B I


GBLG/GLG/GB

BRAKE SWITCH

G GP

GP

GP


GN

GNGNGNG

GG

FUEL PUMP

WW

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/N

LG/N

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B


LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

7

P

P

P

TACHOMETER

PWHATCH

LAMP & SWITCH

PW

PW

PW

B

B

P

P


CIGARLIGHTER

B

B L

W/LG

DISTRIBUTOR

IGNITIONCOIL

WBWU

WB

-+

FUSE BOX

8

1

35

MGBGTV8FROM BENTLEY

BWB

RN

REAR WINDOWDEFROSTER & SWITCH

OVERDRIVESOLENOID


YPY YW


WASHER MOTOR

HEATER FANSWITCH

HEATER FAN MOTOR

GK GK

GKGK

GY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)


GK

GK

RADIO

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

B

RW

RW

RW

B

B

B

CIGAR LIGHTER

FUEL LEVEL


SPEEDOMETER

TACHOMETER

U

HEADLIGHTSWITCH

NRG

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

Left

Right

R


W

BALLAST

2

4

8

1

3

5

PW

TEMPSWITCH

CO

OL

ING

FA

NS

BG

BOBG

6

7

2

3

2

3

1

3

2

2

sheet 28

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

RADIO

GK

B

1

2

3

HEATER FANSWITCH

HEATER FANMOTOR

GY

C2

W1W2

C1

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

URG

G

G

G

G

G

G

PPN

N

RG

RG RG

WN

WN

N

N

W

W

W

W

W

NYInd

(UR)

(UW)

UR

UW

N

N

N

N

N N

N

NN

N

B

B

B

B

NN

ALTERNATOR

(U)(P)


SWITCH

*

1

Batt + +

WR

WG

GKWG

1

3

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

R

R

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

SR

R

RR

R

R

R

B

B

Left

Right

G

GB I


LG/G

FUEL GAUGE & SENDER

GBLG/G

B

REVERSE SWITCH

REVERSELIGHTS

GN

GP

GN

GP

GN

GP

GN

GP

G


INTERLOCK SWITCH

FUEL PUMP


W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/N

LG/N

G

G

G

G

G

N

(GR)

RH REAR

RH FRONT

GW

GW

GR

GR

B

B


LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

56

7

R

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

TACHOMETERWB

WB

P

P

4

B L

73/74 UK MARKET MGBFROM HAYNES

YPYRYW

2

3


CIGARLIGHTERB

PW

PW

PW


B

P P


P

P

PW

PW

B

B

GT

Roadster

N

G

G

BRAKE SWITCH

BRAKELIGHTS

B

HORNBUTTON

HORNS

PB

PB

P

P

REAR WINDOW DEFROSTER& INDICATOR (GT only)

RN

WB

8

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

GAUGELAMP

DIMMERCONTROL

RWRG

RWB

RWB

RWB

RWB

RWB CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


WIPER MOTOR

U/LG

R/LG

N/LG

GK

WIPERSWITCH

GK

1

34

5

GK GK

GK GK

2

1

2

3

5

+-

BATTERIES

-+

2

3


5 6

2

87

sheet 29

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

G

C2W1

W2 C1

+-BATTERIES

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

STARTERRELAY


STARTER

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

GG

G

G

G

G

G

WB

P

P

P

P

P

W

N

N

N

N

NP

WRG

RG

RG

RG

RG

WN

WNYK

N

NW

W

W

NYIndbatt

(UR)

(UW)

UR

UW

(WG)

N

(N)

N

N

NN

N

(PK)

WR

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B

B


NN

ALTERNATOR

(U)(P)


SWITCH

*

+

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B

B

B

1

3

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I


GU

GBLG/GLG/G

LG/G

B

WASHER MOTOR

BRAKE SWITCH


& LAMP

G GP

GP

GP


GN

GNGNGNG

GG

2

3

3

HE

AT

ER

FA

NS

WIT

CH HEATER FAN MOTOR

GK

GY

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

GK

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(GK)


GK

GK

OVERDRIVESOLENOID


FUEL PUMP

YPYYY

W

W


R

P

LH DOORSWITCH

PG

PK



G

G

P

P

P

P

P

YP

YK

YU

YU

YG

YG

YW

YN

NP

NP

NP

NP

NP

PG

SEATBELTMODULE

WR

YO

YO

B

P

P

TACHOMETER

SP SY

PW

PW


PW

PW

PW

B

B

B

P

P


CIGARLIGHTER

B

BW

BW

B

4

CIGAR LIGHTER

HEATER CONTROL

HEATER FAN

FUEL LEVEL

TEMPERATURE

SPEEDOMETER

TACHOMETER

HEADLIGHT SWITCH

OIL PRESSURE

HAZARD SWITCH

HEATER CONTROL

73/74 US MARKET MGBFROM HAYNES

HORNBUTTON

HORNS

P

P

PB

PB

PB

B

W

DISTRIBUTOR

IGNITIONCOIL

WB

WB

1 2 3

4 5 6

7 8 9

10 11 12

RADIO

GEARBOX SWITCH

SEAT SWITCHES

DRIVER

DRIVER

PSNGR

PSNGR

BU

ZZ

ER

-+

FUSE BOX

LG/P

G

G

G

G

G

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

GR

B

B

B

B

RH TSINDICATORgreen

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

B

12

34

5

B L

6

2

1

6

7

5

2

G

B

WB

WB

RN

WB


2

3


8

sheet 30

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

PW

PW

PW


1

2

3

HEATER FANSWITCH

HEATER FANMOTOR

G

G

GY GY

G

C2

W1W2

C1

+-BATTERY

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCHSTARTER

RELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

G

G

G

G

G

P

PP

WN

N

N

WN

RG

RG

RG

RG

WN

WN

N

NW

W

W

W

NY

(UR)

(UW)

UR

UW

WG

N

N

N

N

NN

N

W/LG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RWB

B

B

B

B

B

NN

ALTERNATOR

(U)(P)


SWITCH

*

1

WR

GAUGELAMP

DIMMERCONTROL

RW

RW

B

B

B

1 2

3

FR

ON

T P

AR

KIN

GL

IGH

TS

R

R

R

R

R

R

RB

B

Left

Right

TA

IL L

IGH

TS

&L

ICE

NS

E P

LA

TE

LA

MP

S

R

R

RR

R

R

R

B

B

Left

Right

G B I


LG/G

FUEL GAUGE & SENDER

GBLG/G B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)

WASHER MOTOR


G

REVERSE SWITCH

REVERSELIGHTS

GN

GNGNGN

GP GP GP

GP

G

G

G

G

G

G


INTERLOCK SWITCH

FUEL PUMP


W

R

P

P

DIS

TR

IBU

TO

R

BA

LL

AS

T

IGN

ITIO

NC

OIL

TACHOMETER

WB

WB

WLG

WLG

P

4

CIGAR LIGHTER

FUEL LEVEL

SPEEDOMETER

TACHOMETER


75/76 UK MARKET MGBFROM HAYNES

YPYRYW

3


& RELAY

CIGARLIGHTERB


P

P

PW

PW

B

B

B

GT

Roadster

N

G

BRAKE SWITCHBRAKELIGHTS

C1

W1W2

C2P

REAR WINDOW DEFROSTER& INDICATOR (GT only)RN

WB

B

HORNBUTTON

HORNS

PB

PB

P

P

BG

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/N

LG/N

G

G

G

G

G

N

(GR)

RH REAR

RH FRONT

GW

GW

GR

GR

B

B


LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

56

7

B L

8

IndBatt + +

2

2

35

7 8

6

1 2

35


sheet 31

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

HEATER FANSWITCH

G

G

GY

GN

C1

W1W2

C2

C1

W1 W2

C2

+-BATTERY

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

IGNITIONRELAY

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

WB

P

P

P

P

WN

WN

N

N

N

WN

WN

RG

RG

RG

RG

N

NW

W

GGO

GOGO

GO

W

W

NYInd

(UR)

(UW)

UR

UW

WG (WG)

N

N

(N)

N

N

NN

N

(PK)


WR

WR

GKG

GK

W

W

WN

W

WUW/LG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B


NN

ALTERNATOR

(U)(P)


SWITCH

*

1

2

3

+ +

(S)

(W)

(WR)

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

1 2

35 6

7 8

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

R

R

R

B

B

B

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

R

R

R

R

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

GU

GBLG/GG B I


LG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)

WASHER MOTOR

INDUCTIONHEATER

WIPER/WASHERSWITCH

BRAKESWITCH


BRAKE FAILURESWITCH

G

G

G

G

GP

GP

GP

WR

WR


GN

GNGNGNG

G

G

G

G

G

G

G

G

OVERDRIVE SOLENOID


FUEL PUMP

YPY

Y YB

YYPWN

W

W


SPARKCONTROL SWITCH SPARK ADVANCE

SOLENOID

INERTIASWITCHW

W

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

LG/P

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B

B

B

RH TSINDICATOR

GW

green

green

LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GR

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

78

R

P

LH DOORSWITCH

PG

PK



G

P P

P

YP

YP

P

YN

YN

PG

SEATBELTMODULE

WR

B

B

1

2

3

45

6

HORNBUTTON

HORNS

P PB

PB

B B

P

P

THERMOSTAT

CO

OL

ING

FA

NS

DIS

TR

IBU

TO

R

DISTRIBUTORRESISTOR

IGN

ITIO

NC

OIL

BALLASTWIRE

TACHOMETER

WB

WB

WB

WLG

WLG

SP SY

PW

PW

PW

CLOCK

TRUNK LAMP& SWITCH

PW

B

B

P

P

P


CIGARLIGHTERB

4

B L

CIGAR LIGHTER

HEATER CONTROL

HEATER CONTROL

FUEL LEVEL

TEMPERATURE

SPEEDOMETER

TACHOMETER

CLOCK

OIL PRESSURE

HAZARD SWITCH

HEATER FAN

BG

BGBG

HEATER FAN MOTOR

LATE US MARKET MGBFROM HAYNES

2

3

1


sheet 32

WN

WN

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

GW

**


G

C1

W1W2

C2

C1

W1 W2

C2

+-BATTERY

U

HIG

H B

EA

MS

LO

W B

EA

MS

HIGH BEAM INDICATOR

IGNITIONSWITCH

IGNITIONRELAY

STARTERRELAY


STARTER

RADIOCONNECTION

HEADLIGHTSWITCH

UW

UW

UW

UR

UR

G

G

G

G

PP

WN

WN

N

N

N

WN

WN

RG

RG

RG

RG

WR

WR

N

NW

W

GGO

GO

GO

WR

W

NYInd

(UR)

(UW)

UR

UW

WG (WG)

N

N

(N)

N

N

NN

N

W/LG

GA

UG

E &

DA

SH

ILL

UM

INA

TIO

N L

AM

PS

RW

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

B

NN

ALTERNATOR

(U)(P)


SWITCH

*

+ +(W)

(WR)

GAUGELAMP

DIMMERCONTROL

RW

RW

RW

RW

RW

RW

RW

B

B

B

B

B

FR

ON

T P

AR

KIN

G &

MA

RK

ER

LIG

HT

S

R

R

R

R

R

R

RB

B

Left

Right

TA

IL, R

EA

R M

AR

KE

R, &

LIC

EN

SE

PL

AT

E L

AM

PS

R

R

RR

R

R

R

B

B

Left

Right

TEMP GAUGE & SENDER

FUEL GAUGE & SENDER

B I

GU

GBLG/GLG/G

LG/G

B

WIPER MOTOR

LG/B

U/LG

R/LG

N/LG

G

(LG/B)

(B)

(U/LG)

(R/LG)

(N/LG)

(G)

WASHER MOTOR

WIPER/WASHERSWITCH

HAND BRAKESWITCH

HAND BRAKEWARNING LAMP

BRAKESWITCH

BRAKELIGHTS

WR

G

G

(LG/N)

HAZARDFLASHER

HAZARDSWITCH

LG/NLG/P LG/N

LG/N

G

N

(GR)

RH REAR

RH FRONTGW

GW

GR

GR

GR

B

B


LH REAR

LH FRONT

GR

B

B

B

LH TSINDICATOR

GR

GW

GW

GW

green

(GW)

*TS SWITCH

L

TURN SIGNALFLASHER

12

34

56

78

R



G

YP

YP

P

YN

YN

SEATBELTMODULE

WR

B

B

1

2

3

45

6

HORNBUTTON

HORNS

P PB

PB

B B

P

DIS

TR

IBU

TO

R

IGN

ITIO

NC

OIL

WB

WB

WLG

WLG

B L

CIGAR LIGHTER

REAR WINDOW DEFROST

COURTESY LAMP

HEATER CONTROL

HEATER CONTROL

FUEL LEVEL

TEMPERATURE

SPEEDOMETER

TACHOMETER

CLOCK

OIL PRESSURE

HAZARD SWITCH

HEATER FAN

LATE UK MARKET MGBFROM HAYNES

OVERDRIVESOLENOID


FUEL PUMP

YPYYYWN


W

REVERSE LIGHTS & SWITCH

GN

GNGNGNG

2

3

REAR WINDOW DEFROSTER,SWITCH, & INDICATOR

WB

WB

WB

1

2

3

HE

AT

ER

FA

NS

WIT

CH

HEATER FAN MOTORG

GY

GN

TACHOMETER

G G

GG

W

G

G

G

G


PW

PW

PW

PW


P P

THERMOSTAT

COOLINGFAN

CLOCK

B

P

P

BGBG

CIGARLIGHTERB


P

P

PW

PW

B

B

B

GT

Roadster

1 2

3

5

6

7 8

4

3

2

1


sheet 33

AUTO

-WIR

Ea

dva

nce

Ma

y b

e r

ep

rod

uce

d fo

r p

ers

on

al,

no

n-c

om

me

rcia

l use

on

lyw

ww

.ad

van

cea

uto

wire

.co

mA

P

UB

LIC

AT

ION

5

© 2

00dm

p

**


G

mgb wiring diagrams in color.cdr

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