GM Service Manual Online
For 1990-2009 cars only
Table 1: Tow/Haul Switch Connector
Table 2: Vehicle Speed Sensor (VSS) Assembly Connector, Wiring Harness Side
Table 3: Park/Neutral Position (PNP) Switch, Wiring Harness Side

Tow/Haul Switch Connector


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way Conn 4 F M/P 150 (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

350

Ground

B

BN/WH

230

Instrument Panel Lamps Dimming Control

C

--

--

Not Used

D

L-BU

1788

Tow/Haul Switch Signal

Vehicle Speed Sensor (VSS) Assembly Connector, Wiring Harness Side


Object Number: 900247  Size: CH

Connector Part Information

    • 15359366
    • Asm Conn 2-Way F GT 150 (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

400

VSS Signal

B

PU

401

VSS Ground

Park/Neutral Position (PNP) Switch, Wiring Harness Side


Object Number: 901402  Size: CH

Connector Part Information

    • 15416722 BK
    • ASM Conn 12-Way F GT

Pin

Wire Color

Circuit No.

Function

1

D-GN

1433

Clutch Start Switch Signal

2

Plug GN

15305171

Not Used

3

Plug GN

15305171

Not Used

4

YE

772

Transmission Range Switch Signal B

5

BK/WH

771

Transmssion Range Switch Signal A - Early Production

5

TN/WH

771

Transmssion Range Switch Signal A - Late Production

6

GY

773

Transmission Range Switch Signal C

7

BK

1250

Ground

8

WH

776

Transmission Range Switch Signal P

9

L-GN

275

P/N Position Switch Signal

10

L-GN

1324

Back-up Lamp Supply Voltage

11

PK

339

IGN 1 Voltage

12

PK

139

IGN 1 Voltage