GM Service Manual Online
For 1990-2009 cars only
Table 1: Automatic Transmission Preference (Tow/Haul) Switch Connector (Utility w/Floor Shift-Except Envoy)
Table 2: Automatic Transmission Preference (Tow/Haul) Switch Connector (Utility w/Floor Shift-Envoy Only)
Table 3: Vehicle Speed Sensor Assembly Connector, Wiring Harness Side
Table 4: Transmission Range Switch Connector, Wiring Harness Side
Table 5: Transmission Range Switch Connector, Wiring Harness Side (Late Production)

Automatic Transmission Preference (Tow/Haul) Switch Connector (Utility w/Floor Shift-Except Envoy)


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1850

Ground

B

GRY

1220

Fuse Output - Instrument Panel Lamps

C

--

--

Not Used

D

LT BLU

553

Transmission Preference (Tow/Haul) Switch Output - Performance

Automatic Transmission Preference (Tow/Haul) Switch Connector (Utility w/Floor Shift-Envoy Only)


Object Number: 35441  Size: CH

Connector Part Information

    • 12047663
    • Conn 2M M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

553

Tow/Haul Switch Input

B

BLK

1050

Tow/Haul Switch Ground

Vehicle Speed Sensor Assembly Connector, Wiring Harness Side


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • ASM Conn 2F M/P 150.2 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal (4.3L)

VSS High Signal (2.2L)

B

LT GRN/BLK

822

VSS Low Signal

Transmission Range Switch Connector, Wiring Harness Side


Object Number: 535904  Size: CH

Connector Part Information

    • 12191757
    • Asm Conn 4F M/P 150 (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

TR Switch Signal A

B

GRY

773

TR Switch Signal C

C

WHT

776

TR Switch Signal P

D

YEL

772

TR Switch Signal B

Transmission Range Switch Connector, Wiring Harness Side (Late Production)


Object Number: 901402  Size: CH

Connector Part Information

    • 15416722
    • ASM Conn 12 F GT (MD GRY)

Pin

Wire Color

Circuit No.

Function

1

PPL/WHT

1035

Starter Relay Coil Supply Voltage

3

Plug GRN

15305171

Not Used

4

YEL

772

Transmission Range Switch Signal B

5

BLK/WHT

771

Transmission Range Switch Signal A

6

GRY

773

Transmission Range Switch Signal C

7

BLK

451

Ground

8

WHT

776

Transmission Range Switch Signal P

9

LT GRN

275

P/N Position Switch Signal

10

GRY

1524

Back-up Lamp Supply Voltage

11

PNK

839

IGN 1 Voltage

12

PPL

806

Crank Voltage