GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Automatic Transmission Inline 20-Way Connector End View

Automatic Transmission Inline 20-Way Connector End View M33 Only

Table 1: AT Inline 20-Way Connector, Engine Side (M33 Only)
Table 2: AT Inline 20-Way Connector, Transmission Side (M33 Only)

AT Inline 20-Way Connector, Engine Side (M33 Only)


Object Number: 684844 Size: CH

Connector Part Information
    • 12160493
    • Engine Harness Side 20-Way F Micro-Pack 100 W Series (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

PC Solenoid Valve High Control

D

LT BLU/WHT

1229

PC Solenoid Valve Low Control

E

PNK

1020

OFF/ON/START Voltage

F

PPL

5538

Ignition 1 Voltage

G

PPL

5538

Ignition 1 Voltage

H

BLK

550

Ground

J

BLK

550

Ground

K

--

--

Not Used

L

YEL/BLK

1227

TFT Sensor Signal

M

GRY

720

Low Reference

N

PNK

1224

Transmission Fluid Pressure Switch Signal A

P

RED

1226

Transmission Fluid Pressure Switch Signal C

R

DK BLU

1225

Transmission Fluid Pressure Switch Signal B

S

WHT

687

3-2 Shift Solenoid Valve Control

T

TAN/BLK

422

TCC Solenoid Valve Control

U

BRN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used

AT Inline 20-Way Connector, Transmission Side (M33 Only)


Object Number: 808696 Size: CH

Connector Part Information
    • 12160782
    • Transmission Harness Side 20-Way M Micro-Pack 100 W 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

PC Solenoid Valve High Control

D

LT BLU

1229

PC Solenoid Valve Low Control

E

RED

839

Ignition 1 Voltage

F

PNK

739

Ignition 1 Voltage

G

PNK

739

Ignition 1 Voltage

H

GRY

5259

Ground

J

GRY

5259

Ground

K

--

--

Not Used

L

BRN

1227

TFT Sensor Signal

M

GRY

452

Low Reference

N

PNK

1224

Transmission Fluid Pressure Switch Signal A

P

ORN

1226

Transmission Fluid Pressure Switch Signal C

R

DK BLU

1225

Transmission Fluid Pressure Switch Signal B

S

WHT

687

3-2 Shift Solenoid Valve Control

T

BLK

422

TCC Solenoid Valve Control

U

TAN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used

Automatic Transmission Inline 20-Way Connector End View M30/M32

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 (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

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

TFT Sensor Signal

M

GRY

720

Low Reference

N

PNK

1224

Transmission Fluid Pressure Switch Signal A

P

RED

1226

Transmission Fluid Pressure Switch Signal C

R

DK BLU

1225

Transmission Fluid Pressure Switch Signal B

S

WHT

687

3-2 Shift Solenoid Valve Control

T

TAN/BLK

422

TCC Solenoid Valve Control

U

BRN

418

TCC PWM 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 (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

PC Solenoid Valve High Control

D

LT BLU

1229

PC Solenoid Valve Low Control

E

RED

839

Ignition 1 Voltage

F-K

--

--

Not Used

L

BRN

1227

TFT Sensor Signal

M

GRY

452

Low Reference

N

PNK

1224

Transmission Fluid Pressure Switch Signal A

P

ORN

1226

Transmission Fluid Pressure Switch Signal C

R

DK BLU

1225

Transmission Fluid Pressure Switch Signal B

S

WHT

687

3-2 Shift Solenoid Valve Control

T

BLK

422

TCC Solenoid Valve Control

U

TAN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used