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: 684844  Size: CH

Connector Part Information

    • 12160493
    • Engine Harness Side 20-Way F Micro-Pack 100 W Series (GY)

Pin

Wire Color

Circuit No.

Function

A

L-GN

1222

1-2 Shift Solenoid Valve Control

B

YE/BK

1223

2-3 Shift Solenoid Valve Control

C

OG/BK

1228

Pressure Control (PC) Solenoid Valve High Control - Late Production

C

RD/BK

1228

Pressure Control (PC) Solenoid Valve High Control - Early Production

D

L-BU/WH

1229

PC Solenoid Valve Low Control

E

PK

1020

Ignition 0 Voltage

F-K

--

--

Not Used

L

YE/BK

1227

Transmission Fluid Temperature (TFT) Sensor Signal

M

TN

2762

Low Reference - Late Production

M

BK

2762

Low Reference - Early Production

N

PK

1224

TFP Switch Signal A

P

OG

1226

TFP Switch Signal C - Late Production

P

RD

1226

TFP Switch Signal C - Early Production

R

D-BU

1225

TFP Switch Signal B

S

WH

687

3-2 Shift Solenoid Valve Control

T

TN/BK

422

Torque Converter Clutch Solenoid Valve Control

U

BN

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
    • Transmission Harness Side 20-Way M Micro-Pack 100 W Series (GY)

Pin

Wire Color

Circuit No.

Function

A

L-GN

1222

1-2 Shift Solenoid Valve Control

B

YE

1223

2-3 Shift Solenoid Valve Control

C

PU

1228

Pressure Control (PC) Solenoid Valve High Control

D

L-BU

1229

PC Solenoid Valve Low Control

E

RD

839

Ignition 1 Voltage

F-K

--

--

Not Used

L

BN

1227

Transmission Fluid Temperature (TFT) Sensor Signal

M

GY

452

Low Reference

N

PK

1224

TFP Switch Signal A

P

OG

1226

TFP Switch Signal C

R

D-BU

1225

TFP Switch Signal B

S

WH

687

3-2 Shift Solenoid Valve Control

T

BK

422

Torque Converter Clutch Solenoid Valve Control

U

TN

418

Torque Converter Clutch Pulse Width Modulation Solenoid Valve Control

V-W

--

--

Not Used