GM Service Manual Online
For 1990-2009 cars only
Table 1: Park/Neutral Position Switch C1
Table 2: Park/Neutral Position Switch C2
Table 3: Two Way Brake Switch Connector, Wiring Harness Side
Table 4: Four Way Brake Switch Connector, Wiring Harness Side
Table 5: Vehicle Speed Sensor (VSS) Assembly Connector, Wiring Harness Side

Park/Neutral Position Switch C1


Object Number: 535904  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

WHT

776

Transmission Range Switch Signal P

B

YEL

772

Transmission Range Switch Signal B

C

GRY

773

Transmission Range Switch Signal C

D

BLK/WHT

771

Transmission Range Switch Signal A

Park/Neutral Position Switch C2


Object Number: 535900  Size: CH

Connector Part Information

    • 12129840
    • Conn 7F M/P 150, 280 (GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

1737

Neutral Safety Switch Park/Neutral Signal

B

PNK

539

Ignition 1 Voltage

C

LT GRN

275

Neutral Safety Switch Park Signal

D

BLK/WHT

451

Ground

E

PPL

6

Starter Solenoid Feed

F

LT GRN

24

Backup Lamp Feed

G

YEL

5

Ignition Switch Output-Crank

Two Way Brake Switch Connector, Wiring Harness Side


Object Number: 287957  Size: CH

Connector Part Information

    • 12041433
    • Conn 2F M/P 280 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Ignition 1 Voltage

B

PPL

420

TCC Brake Switch Signal

Four Way Brake Switch Connector, Wiring Harness Side


Object Number: 40397  Size: CH

Connector Part Information

    • 12033706
    • Conn 4F M/P 280 (BLU)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Ignition 1 Voltage

B

PPL

420

TCC Brake Switch Signal

C-D

--

--

Not Used

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


Object Number: 590566  Size: CH

Connector Part Information

    • 12124819
    • Conn 2F M/P 280 (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

400

VSS High Signal

B

PPL

401

VSS Low Signal