GM Service Manual Online
For 1990-2009 cars only
Table 1: Backup Lamp Switch (MWW/MWX)
Table 2: Backup Lamp Alarm Siren (UZF)
Table 3: Engine Coolant Temperature (ECT) Gage Sensor - L18
Table 4: Engine Oil Pressure (EOP) Sensor - L18
Table 5: Fuel Pump and Sender - L18
Table 6: Instrument Panel Cluster

Backup Lamp Switch (MWW/MWX)


Object Number: 684807  Size: CH

Connector Part Information

    • 12052644
    • 2-Way F Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

139

Ignition 1 Voltage

B

L-GRN

24

Backup Lamp Supply Voltage

Backup Lamp Alarm Siren (UZF)


Object Number: 684807  Size: CH

Connector Part Information

    • 15300027
    • 2-Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

L-GRN

24

Backup Lamp Supply Voltage

B

PNK

150

Battery Positive Voltage

Engine Coolant Temperature (ECT) Gage Sensor - L18


Object Number: 684807  Size: CH

Connector Part Information

    • 12110293
    • 3-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

720

Low Reference

B

YEL

410

ECT Sensor Signal

C

DK GRN

35

Coolant Temperature Indicator Control

Engine Oil Pressure (EOP) Sensor - L18


Object Number: 516595  Size: CH

Connector Part Information

    • 12065299
    • 1-Way F Metri-pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

31

Engine Oil Pressure Indicator Control

Fuel Pump and Sender - L18


Object Number: 518981  Size: CH

Connector Part Information

    • 12160482
    • 3-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Level Sensor Signal - Primary

B

GRY

120

Fuel Pump Supply Voltage

C

BLK

150

Ground

D

BLK

470

Low Reference

Instrument Panel Cluster


Object Number: 39791  Size: CH

Connector Part Information

    • 12146397
    • 32-Way P/C BOW P2S (BLK)

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

LT BLU

14

Left Front Turn Signal Lamps Supply Voltage

4

BLK/WHT

451

Ground

5

LT GRN

11

Headlamp High Beam Supply Voltage

6

WHT

121

Engine Speed Signal

7

PNK

39

Ignition 1 Voltage - M/T

7

PNK

1020

Off/Run/Crank Voltage - A/T

8

PPL/WHT

1382

LED Dimming Signal

9

BLK/WHT

771

Transmission Range Switch Signal A - A/T

10

GRY

773

Transmission Range Switch Signal C - A/T

11

YEL

772

Transmission Range Switch Signal B - A/T

12

WHT

776

Transmission Range Switch Signal P - A/T

13-14

--

--

Not Used

14

DK GRN

/WHT

817

VSS Signal - L18

15

TAN

31

Oil Pressure Indicator Control

16

PPL

30

Fuel Level Signal

17

LT GRN

/BLK

592

DRL Relay Control

18

--

--

Not Used

19

BRN

25

Charge Indicator Control

20

--

--

Not Used

21

WHT/BLK

176

Service Throttle Soon Indicator Control - L65

22

PNK

39

Ignition 1 Voltage

23

BRN/WHT

419

MIL Control

24

WHT/BLK

499

Reduced Engine Power Indicator Control - L18

25

--

--

Not Used

26

YEL

749

Security Indicator Control

27

LT GRN

867

ABS Indicator Failure Control

28

TAN/WHT

33

Brake Warning Indicator Control

29

GRY

8

Instrument Panel Lamp Supply Voltage - 1

30

YEL

234

Seat Belt Indicator Control

31

BLK/WHT

451

Ground

32

DK BLU

15

Right Front Turn Signal Lamps Supply Voltage