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For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 GMC Sierra Denali 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Automatic Transmission Inline 20-Way Connector End View

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

Table 1: Engine Side
Table 2: Transmission Side

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

RD/BK

1228

PC Solenoid Valve High Control

D

L- BU/WH

1229

PC Solenoid Valve Low Control

E

PK

1020

Ignition 0 Voltage

F-K

--

--

Not Used

L

YE/BK

1227

TFT Sensor Signal

M

GY

720

Low Reference

N

PK

1224

Transmission Fluid Pressure Switch Signal A

P

RD

1226

Transmission Fluid Pressure Switch Signal C

R

D- BU

1225

Transmission Fluid Pressure Switch Signal B

S

WH

687

3-2 Shift Solenoid Valve Control

T

TN/BK

422

TCC Solenoid Valve Control

U

BN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used

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

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

TFT Sensor Signal

M

GY

452

Low Reference

N

PK

1224

Transmission Fluid Pressure Switch Signal A

P

OG

1226

Transmission Fluid Pressure Switch Signal C

R

D-BU

1225

Transmission Fluid Pressure Switch Signal B

S

WH

687

3-2 Shift Solenoid Valve Control

T

BK

422

TCC Solenoid Valve Control

U

TN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used

Automatic Transmission Inline 20-Way Connector End View M33 Only

Table 1: Engine Side (M33 Only)
Table 2: Transmission Side (M33 Only)

Engine Side (M33 Only)


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

RD/BK

1228

PC Solenoid Valve High Control

D

L- BU/WH

1229

PC Solenoid Valve Low Control

E

PK

1020

OFF/ON/START Voltage

F

PU

5538

Ignition 1 Voltage

G

PU

5538

Ignition 1 Voltage

H

BK

550

Ground

J

BK

550

Ground

K

--

--

Not Used

L

YE/BK

1227

TFT Sensor Signal

M

GY

720

Low Reference

N

PK

1224

Transmission Fluid Pressure Switch Signal A

P

RD

1226

Transmission Fluid Pressure Switch Signal C

R

D- BU

1225

Transmission Fluid Pressure Switch Signal B

S

WH

687

3-2 Shift Solenoid Valve Control

T

TN/BK

422

TCC Solenoid Valve Control

U

BN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used

Transmission Side (M33 Only)


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

PC Solenoid Valve High Control

D

L- BU

1229

PC Solenoid Valve Low Control

E

RD

839

Ignition 1 Voltage

F

PK

739

Ignition 1 Voltage

G

PK

739

Ignition 1 Voltage

H

GY

5259

Ground

J

GY

5259

Ground

K

--

--

Not Used

L

BN

1227

TFT Sensor Signal

M

GY

452

Low Reference

N

PK

1224

Transmission Fluid Pressure Switch Signal A

P

OG

1226

Transmission Fluid Pressure Switch Signal C

R

D- BU

1225

Transmission Fluid Pressure Switch Signal B

S

WH

687

3-2 Shift Solenoid Valve Control

T

BK

422

TCC Solenoid Valve Control

U

TN

418

TCC PWM Solenoid Valve Control

V-W

--

--

Not Used