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HOMESERVICE MANUALSSATURN2000SL2 AUTOMATIC, MP6REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - TESTING & ENGINE COMPONENT TESTINGCOMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATIONPOWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (3.1L - GRAND PRIX & LUMINA)

2000 Saturn SL2 Automatic, MP6

Powertrain Control Module Connector Terminal Identification (3.1L - Grand PRIX & Lumina)

2000 Saturn SL2 Automatic, MP6SECTION Powertrain Control Module Connector Terminal Identification (3.1L - Grand PRIX & Lumina)

POWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION (3.1L - GRAND PRIX & LUMINA) ⁽¹⁾

Connector

Terminal No.

Wire Color

Function

BLK

Transmission Fluid Temperature Sensor Ground

.....

Not Used

ORG

Fuel Gauge Control

LT GRN

1-2 Shift Solenoid Valve Control

DK BLU

Cooling Fan High Speed Control

DK GRN

Cooling Fan Low Speed Control

⁽²⁾ BLK/WHT

Camshaft Position Sensor Signal

PPL/WHT

Crankshaft Position 3x Sensor Reference High

LT BLU/BLK

Crankshaft Position 24x Sensor Signal

GRY

Manifold Absolute Pressure Sensor 5-Volt Reference

11 & 12

.....

Not Used

ORG/BLK

MAP & ECT Sensor Ground

.....

Not Used

TAN

Serial Data (UART)

BLK/WHT

Powertrain Control Module Ground

BLK

Intake Air Temperature Sensor Ground

.....

Not Used

PNK

Ignition Positive Voltage

ORG

Battery Positive Voltage

.....

Not Used

PNK

⁽³⁾ Transaxle Range "A" Input

23-27

.....

Not Used

TAN/WHT

Heated Oxygen Sensor No. 2 Low

TAN

Heated Oxygen Sensor No. 1 Low

PPL

Torque Converter Clutch/Brake Light Switch

BLK

EGR Sensor Ground

⁽⁴⁾ RED

EGR Valve Control Low

DK BLU

Knock Sensor Signal

34 & 35

.....

Not Used

BRN

Charge Warning Indicator Control

.....

Not Used

LT GRN/WHT

Idle Air Control Valve "B" High

39-42

.....

Not Used

BLK

Fuel Injector No. 1 Control Circuit

YEL/BLK

2-3 Shift Solenoid Valve Control

PNK/BLK

AIR Solenoid Control

PNK/BLK

Fuel Injector No. 3 Control Circuit

LT GRN/BLK

Fuel Injector No. 2 Control Circuit

RED/BLK

Crankshaft Position 3x Sensor Reference Low

49-52

.....

Not Used

TAN/BLK

By-Pass Valve Control

WHT

Ignition Control

DK GRN

Vehicle Speed Sensor Output

BLK/WHT

Powertrain Control Module Ground

BLK/WHT

Powertrain Control Module Ground

.....

Not Used

PPL

Serial Data (Class 2)

BLK/WHT

Powertrain Control Module Ground

BLK

Throttle Position Sensor Return (Ground)

RED/BLK

⁽³⁾ A/T Input Speed Sensor High

DK BLU/WHT

⁽³⁾ A/T Input Speed Sensor Low

YEL

Vehicle Speed Sensor High

PPL

Vehicle Speed Sensor Low

66 & 67

.....

Not Used

YEL

Transaxle Range Switch "B"

YEL

Mass Airflow Sensor Signal

DK BLU

Theft Deterrent Fuel Enable Signal

.....

Not Used

DK GRN

Cruise Control Disable/Inhibit Control

BLK/WHT

Fuel Injector No. 5 Control Circuit

.....

Not Used

DK GRN

Hot Coolant Temperature Indicator Control

DK GRN/WHT

EVAP Canister Purge Valve Control

77 & 78

.....

Not Used

YEL/BLK

Fuel Injector No. 6 Control Circuit

BLK

AC Pressure Sensor Ground

.....

Not Used

WHT

EVAP Canister Vent Valve Control

DK GRN/WHT

Fuel Pump Relay Control

⁽⁵⁾ GRY

EGR Valve Ignition System Voltage

BRN/WHT

Malfunction Indicator Light Control

BRN/WHT

Low Oil Level Indicator Control

LT BLU/WHT

Idle Air Control Valve "A" High

WHT

⁽⁶⁾ Tachometer Control

.....

Not Used

PPL

Heated Oxygen Sensor No. 1 Signal

PPL/WHT

Heated Oxygen Sensor No. 2 Signal

12-15

.....

Not Used

WHT

⁽⁷⁾ Transaxle Range Switch "P"

RED

⁽³⁾ Transaxle Range "C" Input

BLK/WHT

Transaxle Range Switch "A"

19-21

.....

Not Used

⁽⁸⁾ DK GRN/WHT

A/C Request Signal

23 & 24

.....

Not Used

LT GRN

Manifold Absolute Pressure Sensor Signal

YEL

Engine Coolant Temperature Sensor Signal

RED/BLK

A/C Refrigerant Pressure Sensor Signal

BRN

EGR Pintle Position Signal

.....

Not Used

GRY

⁽⁶⁾ EGR 5-Volt Reference

.....

Not Used

GRY

⁽³⁾ 5-Volt Reference "B"

GRY

5-Volt Reference "A"

GRY

5-Volt Reference "B"

BLK

Fuel Tank Pressure Sensor Ground

GRY

Change Oil Soon Indicator Control Circuit

37 & 38

.....

Not Used

DK GRN/WHT

A/C Compressor Clutch Relay Control

40 & 41

.....

Not Used

LT BLU/BLK

Fuel Injector No. 4 Control Circuit

.....

Not Used

LT BLU/BLK

Idle Air Control Valve "A" Low

RED/BLK

⁽³⁾ Pressure Control Solenoid Valve High

LT BLU/WHT

⁽³⁾ Pressure Control Solenoid Valve Low

47 & 48

.....

Not Used

LT GRN/BLK

Idle Air Control Valve "B" Low

TAN

Intake Air Temperature Sensor

51-54

.....

Not Used

DK GRN

Fuel Tank Pressure Sensor Signal

GRY

Transaxle Range Switch "C"

.....

Not Used

BRN

Engine Oil Level Sensor Input

WHT

Cruise Control Status

.....

Not Used

RED

Generator Terminal "L" Control

.....

Not Used

YEL

⁽³⁾ Torque Converter Clutch Release Switch Input

64 & 65

.....

Not Used

DK BLU

Throttle Position Sensor Signal

.....

Not Used

⁽⁹⁾ YEL/BLK

Transaxle Fluid Temperature Sensor

PPL

Fuel Level Sensor Signal

LT GRN

⁽⁶⁾ Crankshaft Position 24x Sensor Battery Positive Voltage

.....

Not Used

RED/WHT

CMP/CKP Sensor Battery Positive Voltage

BLK

Camshaft Position/Crankshaft Position Sensor Ground

YEL/BLK

⁽⁶⁾ Crankshaft Position 24x Sensor Ground

BRN

AIR Pump Relay

76 & 77

.....

Not Used

BRN

Torque Converter Clutch PWM Solenoid Control

TAN/BLK

⁽³⁾ Torque Converter Clutch Solenoid

.....

Not Used

⁽¹⁾	See Figure.

⁽²⁾	Black wire on Lumina.

⁽³⁾	Not used on Grand Prix.

⁽⁴⁾	Gray/Black wire on Lumina.

⁽⁵⁾	Red wire on Lumina.

⁽⁶⁾	Not used on Lumina.

⁽⁷⁾	Transaxle range switch "D" on Lumina.

⁽⁸⁾	Light Green wire on Lumina.

⁽⁹⁾	Yellow wire on Lumina.

RENDER: 1.0x

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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.

Safety Warning

Powertrain Control Module Connector Terminal Identification (3.1L - Grand PRIX &amp; Lumina)

Use the Manual With the Right Hardware

When to See a Mechanic

Powertrain Control Module Connector Terminal Identification (3.1L - Grand PRIX & Lumina)