VCM Connector Terminal Identification

Fig 1: Identifying Control Module Harness Connector Terminals (4.3L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L & 7.4L)

Courtesy of GENERAL MOTORS CORP.

VEHICLE CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (5.0L & 5.7L GASOLINE - ESCALADE, EXPRESS, SAVANA, PICKUP, TAHOE & YUKON) ⁽¹⁾

Connector

Terminal No.

Wire Color

Function

1 & 2

.....

Not Used

BRN/WHT

1X CMP Sensor Signal

4-6

.....

Not Used

TAN

HO2S 1 Bank 2 Low

PNK/BLK

CMP Sensor Ground

PPL

Fuel Level Output

TAN/BLK

TCC Solenoid Control

11 & 12

.....

Not Used

WHT

3-2 Shift Solenoid Control

BRN

AIR Pump Relay Control

YEL/BLK

VSS Output

16-18

.....

Not Used

PPL/WHT

HO2S 1 Bank 1 High

PPL

HO2S 2 Bank 2 High (Under 8600 GVW); HO2S 2 Bank 1 High (Over 8600 GVW)

PPL

HO2S 1 Bank 2 High

PPL/WHT

HO2S 2 Bank 1 High (Under 8600 GVW); HO2S 2 Bank 2 High (Over 8600 GVW)

.....

Not Used

TAN

HO2S 2 Bank 2 Low (Under 8600 GVW); HO2S 2 Bank 1 Low (Over 8600 GVW)

TAN/WHT

HO2S 1 Bank 1 Low

TAN/WHT

HO2S 2 Bank 1 Low (Under 8600 GVW); HO2S 2 Bank 2 Low (Over 8600 GVW)

.....

Not Used

PPL

CKP Sensor Ground

LT GRN/BLK

VSS Low

PPL/WHT

VSS High

YEL

4X CKP Sensor Signal

.....

Not Used

.....

Not Used

WHT

EVAP Canister Vent Solenoid Control

.....

Not Used

YEL/BLK

2-3 Shift Solenoid Control

.....

Not Used

LT GRN

1-2 Shift Solenoid Control

BRN

TCC PWM Solenoid Control

BLK

Fuel Injector No. 1 Control

DK BLU/WHT

Fuel Injector No. 8 Control

BRN

EGR Pintle Position Signal

LT GRN/BLK

Fuel Injector No. 2 Control

RED/BLK

Fuel Injector No. 7 Control

LT GRN/WHT

IAC Coil "B" High

LT BLU/WHT

IAC Coil "A" High

BLK/WHT

Fuel Injector No. 5 Control

YEL/BLK

Fuel Injector No. 6 Control

17 & 18

.....

Not Used

DK BLU

Knock Sensor Input

.....

Not Used

LT GRN

MAP Sensor Signal

TAN

IAT Sensor Signal

YEL

ECT Sensor Signal

DK BLU

TP Sensor Signal

DK GRN

Fuel Tank Pressure Sensor Signal

.....

Not Used

YEL/BLK

Transmission Fluid Temperature Sensor Signal (A/T)

YEL

MAF Sensor Signal

LT GRN/BLK

IAC Coil "B" Low

LT BLU/BLK

IAC Coil "A" Low

LT BLU/BLK

Fuel Injector No. 4 Control

PNK/BLK

Fuel Injector No. 3 Control

DK GRN/WHT

A/C Compressor Clutch Relay Control

DK GRN/WHT

EVAP Canister Purge Solenoid Control

.....

Not Used

BLK

Sensor Ground

.....

Not Used

RED/BLK

Pressure Control Solenoid High

DK BLU/WHT

Transmission Input Shaft Speed Sensor Low

RED/BLK

Transmission Input Shaft Speed Sensor High

WHT

IC Control

.....

Not Used

RED

Transmission Range "C" Input

GRY

Sensor Reference Voltage

PPL/WHT

Fuel Level Sensor Signal

DK BLU

A/C Recirculation Signal

.....

Not Used

LT BLU/WHT

Pressure Control Solenoid Low

BLK/WHT

VCM Ground

BLK/WHT

VCM Ground

BLK

Sensor Ground

.....

Not Used

ORN

Battery Positive Voltage (B+)

DK BLU

Transmission Range "B" Input

PNK

Transmission Range "A" Input

.....

Not Used

DK GRN/WHT

A/C Request Signal

.....

Not Used

GRY

5 Volt Reference

28 & 29

.....

Not Used

DK GRN

A/C Cycling Switch Signal

31 & 32

.....

Not Used

DK GRN/WHT

Fuel Pump Relay Control

.....

Not Used

DK GRN/WHT

VSS Output

DK GRN

VSS Output

BRN/WHT

MIL Control

.....

Not Used

DK GRN

Recirculation Door Motor Control

.....

Not Used

DK BLU

Auxiliary Fan

PPL

Brake Switch Input

PPL

Serial Data (Class 2)

BLK

Dual Fuel Module Return

BRN

Ignition Positive Voltage

.....

Not Used

TAN/BLK

Shift Light (M/T)

RED

EGR Valve Control

.....

Not Used

PNK

Ignition Positive Voltage

BLK/WHT

4WD Wheel Lock Input

WHT

EGR Valve Ground

.....

Not Used

BRN/WHT

CPP Switch Signal (M/T)

GRY/BLK

4WD Indicator Signal Input

LT BLU/BLK

Cruise Engaged Input

⁽¹⁾	See Fig 1.