GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

1-2 Shift Solenoid (1-2 SS) Valve

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

2-3 Shift Solenoid (2-3 SS) Valve

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

A/C Compressor Clutch Coil

Part of the A/C compressor, mounted to the right front of the engine.

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HVAC Connector End Views in HVAC Systems - Manual

A/C Compressor Clutch Diode

Spliced into the engine wiring harness, approximately 10 cm (4 in) from the A/C compressor clutch coil connector.

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HVAC Connector End Views in HVAC Systems - Manual

A/C Refrigerant Pressure Sensor

Left side of the engine compartment, below the accumulator.

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HVAC Connector End Views in HVAC Systems - Manual

Automatic Transaxle Fluid Pressure Manual Valve Position Switch

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

Automatic Transaxle Input Shaft Speed Sensor

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

Automatic Transaxle

Lower left side of the engine compartment.

Transmission Component Location in Automatic Transaxle - 4T65-E

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Bank 1 Knock Sensor (KS)

Front of the engine, above the starter.

Engine Controls Component Views

Engine Controls Connector End Views

Bank 2 Knock Sensor (KS)

Lower RR of the engine, below the exhaust manifold.

Engine Controls Component Views

Engine Controls Connector End Views

Bottom Underhood Accessory Wiring Junction Block

RH side of the engine compartment, forward of the strut tower.

Power and Grounding Component Views in Wiring Systems

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Camshaft Position Sensor

RH side of the engine, above the crankshaft pulley.

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Engine Controls Connector End Views

Crankshaft Position Sensor

Lower front of the engine, side of the crank pulley.

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Engine Controls Connector End Views

Cruise Control Module

LH side of the engine compartment, near the strut tower.

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Data Link Connector (DLC)

On the bottom of the instrument panel, to the right of the steering column.

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Electronic Brake Control Module (EBCM)

In the LH side of engine compartment, mounted on the side of the strut tower.

Antilock Brake System Component Views in Antilock Brake System

Antilock Brake System Connector End Views in Antilock Brake System

Engine Coolant Fan Motor 1

Behind the LH side of the radiator.

Cooling System Component Views in Engine Cooling

Cooling System Connector End Views in Engine Cooling

Engine Coolant Fan Motor 2

Behind the RH side of the radiator.

Cooling System Component Views in Engine Cooling

Cooling System Connector End Views in Engine Cooling

Engine Coolant Temperature (ECT) Sensor

LH side of the engine under the thermostat housing.

Engine Controls Component Views

Engine Controls Connector End Views

Engine Oil Level Sensor

Front center of the engine oil pan.

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Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Engine Oil Pressure Indicator Switch

RH rear of the engine compartment, near the oil filter/adampter assembly.

Engine Controls Component Views

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

Top front of the engine, near the center of the valve core.

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Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Vent Solenoid Valve

Behind the LH rear fascia splash shield in the wheel well.

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Engine Controls Connector End Views

Exhaust Gas Recirculation (EGR) Valve

Upper LH side of the engine.

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Injectors

Top of the engine at each of the cylinder intake ports.

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Level Sensor

Mounted in the fuel tank.

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Engine Controls Connector End Views

Fuel Tank Pressure Sensor

Top of the fuel tank, mounted to the sender.

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Fuel Pump

Mounted in the fuel tank.

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Engine Controls Connector End Views

Fuel Tank

Below the rear of the vehicle.

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Engine Controls Connector End Views

Fusible Links

Front of the engine, at the starter assembly.

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Power and Grounding Connector End Views in Wiring Systems

Fusible Links

Top underhood accessory wiring junction block.

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Fusible Links

Bottom underhood accessory wiring junction block.

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Generator

Top of the RH side of the engine.

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Heated Oxygen Sensor 1 (H02S1)

Rear of the engine, in the exhaust manifold.

Engine Controls Component Views

Engine Controls Connector End Views

Idle Air Control (IAC) Valve

Top of the engine, front of the throttle assembly.

Engine Controls Component Views

Engine Controls Connector End Views

Ignition Control (IC) Module

Top RF of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Instrument Cluster

LH side of the instrument panel.

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Intake Air Temperature (IAT) Sensor

LF of the engine compartment, on the air intake duct.

Engine Controls Component Views

Engine Controls Connector End Views

IP Accessory Wiring Junction Block (LH)

LH side of the instrument panel, in the left front door opening.

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

IP Accessory Wiring Junction Block (RH)

RH side of the instrument panel, at the right front door opening.

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Manifold Absolute Pressure (MAP) Sensor

Top front of the engine, on the plenum.

Engine Controls Component Views

Engine Controls Connector End Views

Mass Air Flow (MAF) Sensor

LF of the engine compartment, top of the throttle body.

Engine Controls Component Views

Engine Controls Connector End Views

Powertrain Control Module (PCM)

RH side of the engine compartment, forward of the strut tower, inside air box.

Engine Controls Component Views

Engine Controls Connector End Views

Pressure Control Solenoid Valve

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

Secondary Air Injection Reaction (A.I.R.) Motor

LF of the engine compartment, forward of LF wheel well.

Engine Controls Component Views

Engine Controls Connector End Views

Secondary Air Injection Reaction (A.I.R.) Valve Solenoid

Rear of the engine, in the exhaust manifold.

Engine Controls Component Views

Engine Controls Connector End Views

Splice Pack SP205

Next to the LH IP accessory wiring junction block wiring harness, taped on harness.

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Data Link Communications Connector End Views in Data Link Communications

Starter

Lower front of the engine.

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Stop Lamp Switch

Behind the instrument panel, on the brake pedal support.

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Throttle Position (TP) Sensor

Top of the engine, on the throttle body assembly.

Engine Controls Component Views

Engine Controls Connector End Views

Top Underhood Accessory Wiring Junction Block

RH side of the engine compartment, forward of the strut tower.

Power and Grounding Component Views in Wiring Systems

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Torque Converter Clutch Pulse Width Modulation (TCC PWM SOL) Solenoid Valve

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

Transmission/Transaxle Fluid Temperature (TFT) Sensor

Inside the automatic transaxle.

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Internal Connector End Views in Automatic Transaxle - 4T65-E

Vehicle Speed Sensor (VSS)

RR of the engine, on the automatic transaxle.

Engine Controls Component Views

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C101 (20 cavities)

Engine harness to the instrument panel harness, in the right side of the engine compartment, near the strut tower.

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Inline Harness Connector End Views in Wiring Systems

C106 (24 cavities)

Instrument panel harness, front right side of engine compartment.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C110 (8 cavities)

Engine harness to ignition control module harness, on the right top of the engine, above the ignition control module.

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Inline Harness Connector End Views in Wiring Systems

C112 (24 cavities)

Engine harness to the forward lamp harness, RH front of the engine compartment.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C125 (1 cavity)

Engine wiring harness to the bank 2 knock sensor jumper harness, lower right hand side of the engine.

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Inline Harness Connector End Views in Wiring Systems

C126 (3 cavities)

Engine wiring harness to the ECT sensor jumper harness, top center of the engine, on the intake manifold.

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Inline Harness Connector End Views in Wiring Systems

C405 (12 cavities)

Body harness to the fuel tank harness, below the center rear of the vehicle above the fuel tank.

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G101

Left side of the radiator support.

Harness Routing Views in Wiring Systems

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G111 (VIN K)

Top right of the engine, below the ignition control module.

Harness Routing Views in Wiring Systems

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G113 (VIN K)

Lower left front of the engine, on the automatic transaxle stud, near the starter.

Harness Routing Views in Wiring Systems

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G201

RH side of the upper steering column, on the IP carrier.

Harness Routing Views in Wiring Systems

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G203

Behind the instrument panel in the right side of the brake pedal bracket.

Harness Routing Views in Wiring Systems

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G302

Between the RH A pillar and B pillar.

Harness Routing Views in Wiring Systems

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P100

Right rear of the engine compartment, near the strut tower.

Harness Routing Views in Wiring Systems

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P101

Left rear of the engine compartment, near the strut tower.

Harness Routing Views in Wiring Systems

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P408

Behind the left rear fascia splash shield in the wheel well.

Harness Routing Views in Wiring Systems

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S106

Engine harness, below the left side of the radiator approximately 6.5 cm (2.5 in) from the Powertrain Control Module (PCM) connector C1 breakout.

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S109

Engine harness, top of engine at the IAT sensor breakout.

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S130

Forward lamp harness, near LH headlamp, approximately 4 cm (1.5 in) from the outside air temperature sensor.

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S131

Engine harness, front right of engine, approximately 10.5 cm (4 in) from inline connector C112 to forward lamp harness breakout.

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S132

Forward lamp harness, inside top underhood accessory wiring junction block, approximately 3 cm (1 in) from the bracket side.

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S144

Electronic ICM wiring harness, top of engine near ignition control module, approximately 12 cm (5 in) from C110.

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S145

Electronic ICM wiring harness, top of engine near ignition control module, approximately 12 cm (5 in) from C110.

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S158

Engine harness left rear of engine, approximately 6.5 cm (2 in) from the EGR valve solenoid breakout.

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S169

Engine wiring harness, lower left rear of engine compartment, approximately 4 cm (1.5 in) from inline connector C113 to automatic transaxle breakout.

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S174

Forward lamp harness, near the LH headlamp, approximately 10.5 cm (4 in) from the outside air temperature sensor breakout.

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S175

Forward lamp harness, near LH headlamp, approximately 31.5 cm (12.5 in) from the outside air temperature sensor breakout.

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S179

Forward lamp harness, inside top underhood accessory wiring junction block, approximately 2 cm (¾ in) from the bracket side.

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S236

Instrument panel harness, behind right side of Instrument panel, approximately 4 cm (1.5 in) from the body control module breakout.

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S253

Instrument panel harness, behind lower right side of instrument panel, approximately 4 cm (1.5 in) from the data link connector breakout.

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