GM Service Manual Online
For 1990-2009 cars only
Table 1: Transmission side
Table 2: Engine side

Automatic Transmission Wiring Harness Assembly 20-way Connector

Transmission side


Object Number: 29336  Size: CH

Connector Part Information

    • 12160782
    • 20-way M Micro-Pack 100W Series (Gray)

Pin

Wire Color

Circuit No.

Function

A

0.8 LT GRN

1222

1-2 Shift Solenoid (1-2 SS) Valve Control

B

0.8 YEL

1223

2-3 Shift Solenoid (2-3 SS) Valve Control

C

0.8 PPL

1228

Pressure Control Solenoid (PC Sol.) Valve HIGH Control

D

0.8 LT BLU

1229

PC Sol. Valve LOW Control

E

0.8 RED

839

Transmission Solenoid Power

L

0.8 DK BRN

1227

Transmission Fluid Temperature (TFT) Sensor Signal

M

0.8 GRY

452

TFT Sensor Ground

N

0.8 PNK

1224

Range Signal A Input

P

0.8 RED

1226

Range Signal C Input

R

0.8 DK BLU

1225

Range Signal B Input

S

0.8 BLK

1230

Automatic Transmission Input Shaft Speed (A/T ISS) Sensor HIGH

T

0.8 TAN

418

Torque Converter Clutch Solenoid (TCC Sol.) Valve Control

U

0.8 WHT

1804

TCC Release Switch Input

V

0.8 GRN

1231

A/T ISS Sensor LOW

Automatic Transmission Wiring Harness Assembly 20-way Connector

Engine side

Connector Part Information

    • 12160493
    • 20-way F Micro-Pack 100W Series (Gray)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1222

1-2 Shift Solenoid (1-2 SS) Valve Control

B

YEL/BLK

1223

2-3 Shift Solenoid (2-3 SS) Valve Control

C

RED/BLK

1228

Pressure Control Solenoid (PC Sol.) Valve HIGH Control

D

LT BLU/WHT

1229

PC Sol. Valve LOW Control

E

PNK

439

Transmission Solenoid Power

L

YEL/BLK

1227

Transmission Fluid Temperature (TFT) Sensor Signal

M

BLK

452 (L82)

TFT Sensor Ground

M

BLK

407 (LD9)

TFT Sensor Ground

N

PNK

1224

Range Signal A Input

P

RED

1226

Range Signal C Input

R

DK BLU

1225

Range Signal B Input

S

RED/BLK

1230

Automatic Transmission Input Shaft Speed (A/T ISS) Sensor HIGH

T

BRN

418

Torque Converter Clutch Solenoid (TCC Sol.) Valve Control

U

YEL

657

TCC Release Switch Input

V

DK BLU/WHT

1231

A/T ISS Sensor LOW