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: TCC/Stop Lamp Switch
Table 4: Automatic Transmission Connector (Engine Side), C175
Table 5: Automatic Transmission Connector (Transmission Side), C175
Table 6: Vehicle Speed Sensor (VSS)

Park/Neutral Position Switch, C1


Object Number: 68780  Size: CH

Connector Part Information

    • 12129840
    • 7-Way F Metri-Pack Mixed (GRY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

LT GRN

275

Transmission Mounted Neutral Safety Switch Output - Park

C

PNK

839

Fuse Output - Ignition 1

D

BLK/WHT

451

Engine Control Module Ground

E

PPL

806

Fuse Output - Crank

F

GRY

1524

Back-Up Lamp Feed

G

PPL/WHT

1035

Starter Relay Feed - Coil

Park/Neutral Position Switch, C2


Object Number: 40412  Size: CH

Connector Part Information

    • 12191757
    • 4-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

Transmission Position Switch Signal - BIT 1

B

GRY

773

Transmission Position Switch Signal - BIT 3

C

WHT

776

Transmission Position Switch Signal - Parity BIT

D

YEL

772

Transmission Position Switch Signal - BIT 2

TCC/Stop Lamp Switch


Object Number: 62424  Size: CH

Connector Part Information

    • 12040551
    • 6-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

ORN

1540

Fuse Output - Battery

C

PPL

420

Brake Pedal Switch Output - Torque Converter Clutch

D

BRN

441

Fuse Output - Ignition 3

E

LT GRN/BLK

584

Fuse Output - Brake Transmission Shift Interlock (Auto Trans Only)

F

DK GRN/WHT

1135

Brake Transmission Shift Interlock Solenoid Feed (Auto Trans Only)

Automatic Transmission Connector (Engine Side), C175


Object Number: 68791  Size: CH

Connector Part Information

    • 12191511
    • 20-Way M Micro-Pack 100 Series, Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1222

1-2 Shift Solenoid Valve Control

B

YEL/BLK

1223

2-3 Shift Solenoid Valve Control

C

RED/BLK

1228

Pressure Control (PC) Solenoid Valve, HIGH

D

LT BLU/WHT

1229

PC Solenoid Valve, LOW

E

PNK

1020

Transmission Solenoid Power

F-K

--

--

Not Used

L

YEL/BLK

1227

Transmission Fluid Temperature (TFT) Sensor, HIGH

M

BLK

470

TFT Sensor, LOW

N

PNK

1224

Range Signal A

P

RED

1226

Range Signal C

R

DK BLU

1225

Range Signal B

S

WHT

687

3-2 Shift Solenoid Valve Assembly Control

T

TAN/BLK

422

Torque Converter Clutch Solenoid Output

U

BRN

418

Torque Converter Clutch (TCC) Solenoid Valve Control

V-W

--

--

Not Used

Automatic Transmission Connector (Transmission Side), C175


Object Number: 306276  Size: CH

Connector Part Information

    • 12191511
    • 20-Way F Micro-Pack 100 Series, Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1222

1-2 Shift Solenoid Valve Control

B

YEL

1223

2-3 Shift Solenoid Valve Control

C

PPL

1228

Pressure Control (PC) Solenoid Valve, HIGH

D

LT BLU

1229

PC Solenoid Valve, LOW

E

RED

1020

Transmission Solenoid Power

F-K

--

--

Not Used

L

BRN

1227

Transmission Fluid Temperature (TFT) Sensor, HIGH

M

GRY

470

TFT Sensor, LOW

N

PNK

1224

Range Signal A

P

ORN

1226

Range Signal C

R

DK BLU

1225

Range Signal B

S

WHT

687

3-2 Shift Solenoid Valve Assembly Control

T

BLK

422

Torque Converter Clutch Solenoid Output

U

TAN

418

Torque Converter Clutch (TCC) Solenoid Valve Control

V-W

--

--

Not Used

Vehicle Speed Sensor (VSS)


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 150.2 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

Vehicle speed Sensor Signal

B

LT GRN/BLK

822

Vehicle Speed Sensor Return