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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2000 Chevrolet Tracker 4D Utility, RWD, AutomaticFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module Connector Terminal Identification

Fig 1: Identifying Powertrain Control Module Harness Connector Terminals

Courtesy of GENERAL MOTORS CORP.

POWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (1.6L)

Connector/Terminal No. ⁽¹⁾

Wire Color

Function

C1/1

GRY/RED

Fuel Tank Pressure Sensor Reference Voltage

C1/2

WHT

Battery Positive Voltage

C1/3

PNK/GRN

HO2S Heater Control

C1/4

GRY

Idle Signal For Cruise Control (If Equipped)

C1/5

.....

Not Used

C1/6

BRN

Tachometer

C1/7

PPL/YEL

MIL Control

C1/8

GRY/WHT

A/C Cut-Out Control

C1/9

BLU

Main Relay Control

C1/10-12

.....

Not Used

C1/13

PPL/GRN

Serial Data Output

C1/14

.....

Not Used

C1/15

BLK/ORG

Electrical Load Diode Signal

C1/16

PNK/WHT

HVAC Blower Idle-Up Signal

C1/17

YEL/BLK

A/C Idle-Up Signal

C1/18

.....

Not Used

C1/19

ORG/BLK

4WD Indicator Light (If Equipped)

C1/20 & 21

.....

Not Used

C1/22

YEL/BLU

A/C Condenser Fan Relay Control

C1/23

WHT/GRN

Fuel Pump Relay Control

C1/24

GRY/YEL

HO2S 2 Sensor Ground

C1/25

.....

Not Used

C1/26

RED/GRN

HO2S 2 Signal

C1/27

BRN/RED

Fuel Tank Pressure Sensor Input

C1/28

BLU/WHT

Fuel Tank Level Sensor Input

C1/29

.....

Not Used

C1/30

PNK/BLK

ABS Idle-Up Signal (If Equipped)

C1/31-33

.....

Not Used

C1/34

GRN/WHT

Brake Switch Signal

C1/35

PNK/BLU

O/D Cut-Signal From Cruise Control (If Equipped)

C2/1

LT BLU

IAT Sensor Input

C2/2

ORG/BLK

ECT Sensor Input

C2/3

.....

Not Used

C2/4

BLU/BLK

Ignition Positive Voltage

C2/5

PPL/GRN

MAF Sensor Ground

C2/6

BLK/GRN

Ground

C2/7

BLU/ORG

PSP Switch Idle-Up Signal

C2/8

RED/WHT

MAP Sensor Input

C2/9

RED/GRN

TP Sensor Input

C2/10

PPL/WHT

MAF Sensor Input

C2/11

RED

HO2S 1 Signal

C2/12

.....

HO2S 1 Sensor Shield Ground

C2/13

GRY/RED

TP Sensor Reference Voltage

C2/14

WHT/RED

MAP Sensor Reference Voltage

C2/15

BLU/BLK

Ignition Positive Voltage

C2/16

.....

Not Used

C2/17

BLK/BLU

Ground

C2/18

BLK/YEL

Crank Signal

C2/19

.....

Not Used

C2/20

BLK/WHT

Ignition Positive Voltage

C2/21

GRY/YEL

TP Sensor Ground

C2/22

BLU/RED

MAP Sensor Ground

C2/23

BLU

ECT Sensor Ground

C2/24

GRY/YEL

HO2S 1 Sensor Ground

C2/25

BLU/WHT

IAT Sensor Ground

C2/26

PPL/RED

CMP Sensor Ground

C4/1

PNK/BLK

Fuel Injector No. 2 Control

C4/2

PNK

Fuel Injector No. 1 Control

C4/3

LT GRN/BLK

IAC Valve Coil Control

C4/4

GRY

HO2S 1 Heater Control

C4/5

PPL/RED

EVAP Canister Vent Solenoid Control

C4/6

GRN/WHT

EVAP Tank Pressure Control Solenoid Valve Control

C4/7

RED

4WD Actuator Control

C4/8

PNK/BLU

Fuel Injector No. 4 Control

C4/9

PNK/GRN

Fuel Injector No. 3 Control

C4/10

PPL/YEL

IAC Valve Coil Control

C4/11

GRY/BLU

IAC Valve Coil Control

C4/12

PPL/BLK

IAC Valve Coil Control

C4/13

LT GRN/RED

EGR Valve Coil Control

C4/14

LT GRN/YEL

EGR Valve Coil Control

C4/15

LT GRN/WHT

EGR Valve Coil Control

C4/16

LT GRN

EGR Valve Coil Control

C4/17

GRN/BLK

EVAP Canister Purge Valve Control

C4/18

BLK/ORG

4WD Signal

C4/19

WHT/BLU

CKP Sensor Signal High

C4/20

ORG/BLU

CKP Sensor Signal Low

C4/21

BRN/YEL

Ignition Coil No. 4 Control

C4/22

BRN/WHT

Ignition Coil No. 3 Control

C4/23

BRN/BLK

Ignition Coil No. 2 Control

C4/24

BRN

Ignition Coil No. 1 Control

C4/25

BLU/YEL

VSS Signal

C4/26

YEL/BLU

CMP Sensor Signal

C4/27

PNK

4WD Actuator Control

C4/28

BLK/BLU

Ground

C4/29

BLK/GRN

DLC Ground

C4/30

.....

CKP Sensor Shielded Ground

⁽¹⁾	See Fig 1 .

POWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (2.0L)

Connector/Terminal No. ⁽¹⁾

Wire Color

Function

C1/1

GRY/RED

Fuel Tank Pressure Sensor Reference Voltage

C1/2

WHT

Battery Positive Voltage

C1/3

PNK/GRN

HO2S Heater Control

C1/4

GRY

Idle Signal For Cruise Control (If Equipped)

C1/5

.....

Not Used

C1/6

BRN

Tachometer

C1/7

PPL/YEL

MIL Control

C1/8

GRY/WHT

A/C Cut-Out Control

C1/9

BLU

Main Relay Control

C1/10-12

.....

Not Used

C1/13

PPL/GRN

Serial Data Output

C1/14

.....

Not Used

C1/15

BLK/ORG

Electrical Load Diode Signal

C1/16

PNK/WHT

HVAC Blower Idle-Up Signal

C1/17

YEL/BLK

A/C Idle-Up Signal

C1/18

.....

Not Used

C1/19

ORG/BLK

4WD Indicator Light (If Equipped)

C1/20

WHT/BLK

O/D Indicator Light Control (A/T)

C1/21

GRY/BLU

Power/Normal Indicator Light Control (A/T)

C1/22

YEL/BLU

A/C Condenser Fan Relay Control

C1/23

WHT/GRN

Fuel Pump Relay Control

C1/24

GRY/YEL

HO2S 2 Sensor Ground

C1/25

.....

Not Used

C1/26

RED/GRN

HO2S 2 Signal

C1/27

BRN/RED

Fuel Tank Pressure Sensor Input

C1/28

BLU/WHT

Fuel Tank Level Sensor Input

C1/29

.....

Not Used

C1/30

PNK/BLK

EBCM Idle-Up Signal (ABS)

C1/31

ORG/BLU

Shift Mode Input (A/T)

C1/32

RED/YEL

Taillight Idle-Up Signal (A/T)

C1/33

YEL/RED

O/D Switch Signal (A/T)

C1/34

GRN/WHT

Brake Switch Signal

C1/35

PNK/BLU

Cruise Control Signal (If Equipped)

C2/1

LT BLU

IAT Sensor Input

C2/2

ORG/BLK

ECT Sensor Input

C2/3

.....

Not Used

C2/4

BLU/BLK

Ignition Positive Voltage

C2/5

PPL/GRN

MAF Sensor Ground

C2/6

BLK/GRN

Ground

C2/7

BLU/ORG

PSP Switch Idle-Up Signal

C2/8

RED/WHT

MAP Sensor Input

C2/9

RED/GRN

TP Sensor Input

C2/10

PPL/WHT

MAF Sensor Input

C2/11

RED

HO2S 1 Signal

C2/12

.....

HO2S 1 Sensor Shield Ground

C2/13

GRY/RED

TP Sensor Reference Voltage

C2/14

WHT/RED

MAP Sensor Reference Voltage

C2/15

BLU/BLK

Ignition Positive Voltage

C2/16

.....

Not Used

C2/17

BLK/BLU

Ground

C2/18

BLK/YEL

Crank Signal

C2/19

.....

Not Used

C2/20

BLK/WHT

Ignition Positive Voltage

C2/21

GRY/YEL

TP Sensor Ground

C2/22

BLU/RED

MAP Sensor Ground

C2/23

BLU

ECT Sensor Ground

C2/24

GRY/YEL

HO2S 1 Sensor Ground

C2/25

BLU/WHT

IAT Sensor Ground

C2/26

PPL/RED

CMP Sensor Ground

C3/1

GRN/RED

Shift Solenoid No. 2 Control

C3/2

GRN

Shift Solenoid No. 1 Control

C3/3-7

.....

Not Used

C3/8

GRN/YEL

TCC Solenoid Control

C3/9

.....

Not Used

C3/10

BLU/GRN

A/T Input Shaft Speed Sensor Signal Low

C3/11

BLU/YEL

A/T Input Shaft Speed Sensor Signal High

C3/12-14

.....

Not Used

C3/15

YEL/GRN

TR Switch "D" Position Signal

C3/16

ORG/BLU

TR Switch "N" Position Signal

C3/17

RED

TR Switch "R" Position Signal

C3/18

ORG/GRN

TR Switch "P" Position Signal

C3/19

.....

Not Used

C3/20

BLK

A/T Output Shaft Speed Sensor Shielded Ground

C3/21

BLK

A/T Input Shaft Speed Sensor Shielded Ground

C3/22

ORG

A/T Output Shaft Speed Sensor Signal Low

C3/23

WHT

A/T Output Shaft Speed Sensor Signal High

C3/24 & 25

.....

Not Used

C3/26

ORG/WHT

4WD Low Signal

C3/27

GRN/BLU

TR Switch "L" Position Signal

C3/28

GRN/ORG

TR Switch "2" Position Signal

C4/1

PNK/BLK

Fuel Injector No. 2 Control

C4/2

PNK

Fuel Injector No. 1 Control

C4/3

LT GRN/BLK

IAC Valve Coil Control

C4/4

GRY

HO2S 1 Heater Control

C4/5

PPL/RED

EVAP Canister Vent Solenoid Control

C4/6

GRN/WHT

EVAP Tank Pressure Control Solenoid Valve Control

C4/7

RED

4WD Actuator Control

C4/8

PNK/BLU

Fuel Injector No. 4 Control

C4/9

PNK/GRN

Fuel Injector No. 3 Control

C4/10

PPL/YEL

IAC Valve Coil Control

C4/11

GRY/BLU

IAC Valve Coil Control

C4/12

PPL/BLK

IAC Valve Coil Control

C4/13

LT GRN/RED

EGR Valve Coil Control

C4/14

LT GRN/YEL

EGR Valve Coil Control

C4/15

LT GRN/WHT

EGR Valve Coil Control

C4/16

LT GRN

EGR Valve Coil Control

C4/17

GRN/BLK

EVAP Canister Purge Valve Control

C4/18

BLK/ORG

4WD Signal

C4/19

WHT/BLU

CKP Sensor Signal High

C4/20

ORG/BLU

CKP Sensor Signal Low

C4/21

BRN/YEL

Ignition Coil No. 4 Control

C4/22

BRN/WHT

Ignition Coil No. 3 Control

C4/23

BRN/BLK

Ignition Coil No. 2 Control

C4/24

BRN

Ignition Coil No. 1 Control

C4/25

BLU/YEL

VSS Signal

C4/26

YEL/BLU

CMP Sensor Signal

C4/27

PNK

4WD Actuator Control

C4/28

BLK/BLU

Ground

C4/29

BLK/GRN

DLC Ground

C4/30

.....

CKP Sensor Shielded Ground

⁽¹⁾	See Fig 1 .

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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