GM Service Manual Online
For 1990-2009 cars only
Table 1: AT Inline 20-Way Connector, Engine Side
Table 2: AT Inline 20-Way Connector, Transmission Side

AT Inline 20-Way Connector, Engine Side


Object Number: 684877  Size: CH

Connector Part Information

    • 12191511
    • 20F Micro-Pack 100W Series
    • (Gray)

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 Control

D

LT BLU/WHT

1229

PC Solenoid Valve Low Control

E

PNK

1020

OFF/ON/START Voltage

F-K

--

--

Not Used

L

YEL/BLK

1227

Transmission Fluid Temperature (TFT) Sensor Signal

M

BLK

2762

Low Reference

N

PNK

1224

TFP Switch Signal A

P

RED

1226

TFP Switch Signal C

R

DK BLU

1225

TFP Switch Signal B

S

WHT

687

3-2 Shift Solenoid Valve Control

T

TAN/BLK

422

Torque Converter Clutch Solenoid Valve Control

U

BRN

418

Torque Converter Clutch Pulse Width Modulation Solenoid Valve Control

V-W

--

--

Not Used

AT Inline 20-Way Connector, Transmission Side


Object Number: 808696  Size: CH

Connector Part Information

    • 12160782
    • 20-Way M Micro-Pack 100W Series, 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 Control

D

LT BLU

1229

PC Solenoid Valve Low Control

E

RED

839

Ignition 1 Voltage

L

BRN

1227

Transmission Fluid Temperature (TFT) Sensor Signal

M

GRY

452

Low Reference

N

PNK

1224

TFP Switch Signal A

P

ORN

1226

TFP Switch Signal C

R

DK BLU

1225

TFP Switch Signal B

S

WHT

687

3-2 Shift Solenoid Valve Control

T

BLK

422

Torque Converter Clutch Solenoid Valve Control

U

TAN

418

Torque Converter Clutch Pulse Width Modulation Solenoid Valve Control

V-W

--

--

Not Used