GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch Coil (VIN M)

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

HVAC Component Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

HVAC Connector End Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

A/C Compressor Clutch Diode (VIN M)

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

HVAC Component Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

HVAC Connector End Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

A/C Refrigerant Pressure Sensor

Right side of the engine compartment, below the accumulator

HVAC Component Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

HVAC Connector End Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

Automatic Transmission/Transaxle

Lower left side of the engine compartment

Automatic Transmission Electronic Component Views in Automatic Transaxle - 4T60-E and

Transmission Component Location in Automatic Transaxle - 4T65-E

Automatic Transmission Inline Harness Connector End View in Automatic Transaxle - 4T60-E and

Automatic Transmission Inline Harness Connector End View in Automatic Transaxle - 4T65-E

Bank 1 Knock Sensor (KS) (VIN M)

Lower right rear of the engine, below the exhaust manifold

Engine Controls Component Views

Engine Controls Connector End Views

Bank 2 Knock Sensor (KS)

Lower right rear of the engine, below the exhaust manifold

Engine Controls Component Views

Engine Controls Connector End Views

Backup Lamps

Center rear of the vehicle on the rear compartment lid

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Camshaft Position Sensor (VIN M)

Right side of the engine, below the intake plenum

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (7X) Sensor (VIN M)

Lower rear of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (24X) Sensor (VIN M)

Right side of the engine, at the end of the crankshaft, behind the harmonic balancer

Engine Controls Component Views

Engine Controls Connector End Views

Cruise Control Module

Left 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

Engine Coolant Fan Motor 1 (VIN M)

Behind the left side of the radiator

Cooling System Component Views in Engine Cooling

Cooling System Connector End Views in Engine Cooling

Engine Coolant Fan Motor 2 (VIN M)

Behind the right side of the radiator

Cooling System Component Views in Engine Cooling

Cooling System Connector End Views in Engine Cooling

Engine Coolant Temperature (ECT) Sensor (VIN M)

Top left side of engine below the throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Engine Oil Level Sensor (VIN M)

Center of the engine, above the starter

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

Engine Wiring Harness Junction Block 1

Right side of the engine compartment, forward of the strut tower

Power and Grounding Component Views in Wiring Systems

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Engine Wiring Harness Junction Block 2

Left side of the engine compartment, forward of the strut tower

Power and Grounding Component Views in Wiring Systems

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Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (VIN M)

Top of the rear engine, on the intake manifold below the ignition control module

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Vent Solenoid Valve (VIN M)

Behind the left rear fascia splash shield in the wheel well

Engine Controls Component Views

Engine Controls Connector End Views

Exhaust Gas Recirculation (EGR) Valve (VIN M)

Upper left side of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Injectors (VIN M)

Top of the engine at each of the cylinder intake ports

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Tank

Below the rear of the vehicle

Engine Controls Component Views

Engine Controls Connector End Views

Fuse Block

Right side of the instrument panel, in the right front door opening

Power and Grounding Component Views in Wiring Systems

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Fusible Links

Front of the engine, at the starter assembly

Power and Grounding Component Views in Wiring Systems

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Generator

Top of the right side of the engine

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Heated Oxygen Sensor 1 (H02S 1) (VIN M)

Rear of the engine, in the exhaust manifold

Engine Controls Component Views

Engine Controls Connector End Views

Heated Oxygen Sensor 2 (H02S 2)

In the exhaust system, behind the catalytic converter

Engine Controls Component Views

Engine Controls Connector End Views

Heater-A/C Control

Center of the instrument panel

HVAC Component Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

HVAC Connector End Views in HVAC Systems with AC - Manual (RPO C60/CJ3)

Idle Air Control (IAC) Valve (VIN M )

Top of the engine, front of the throttle assembly

Engine Controls Component Views

Engine Controls Connector End Views

Ignition Control (IC) Module (VIN M)

Top center rear of the engine

Engine Controls Component Views

Engine Controls Connector End Views

Instrument Cluster

Left 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 (VIN M)

Left front of the engine compartment, on the air intake duct

Engine Controls Component Views

Engine Controls Connector End Views

Manifold Air Pressure (MAP) Sensor (VIN M)

Top rear of the engine, on the intake plenum near the ignition control module

Engine Controls Component Views

Engine Controls Connector End Views

Mass Air Flow (MAF) Sensor (VIN M)

Left front of the engine compartment, in the air cleaner duct

Engine Controls Component Views

Engine Controls Connector End Views

Powertrain Control Module (PCM) (VIN M)

Right side of the engine compartment, forward of the strut tower

Engine Controls Component Views

Engine Controls Connector End Views

Radio

Center of the instrument panel

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Rear Compartment Lid Ajar Indicator Switch

Center of the rear compartment lid

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting System

Remote Control Door Lock Receiver (RCDLR)

Below the right rear window trim panel

Keyless Entry Component Views in Keyless Entry

Keyless Entry Connector End Views in Keyless Entry

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 System

Theft Deterrent Relay

Behind the right side of the instrument panel, above the instrument panel compartment

Theft Deterrent System Component Views in Theft Deterrent

Theft Deterrent System Connector End Views in Theft Deterrent

Throttle Position (TP) Sensor (VIN M)

Top of the engine, on the throttle assembly

Engine Controls Component Views

Engine Controls Connector End Views

Transmission/Transaxle Range Switch (VIN M)

Left of the engine, on the transmission/transaxle

Engine Controls Component Views

Engine Controls Connector End Views

Vehicle Speed Sensor (VSS) (VIN M)

Right rear of the engine, on the transmission/transaxle

Engine Controls Component Views

Engine Controls Connector End Views

C100 (36 cavities)

Engine harness to the instrument panel harness, in the right side of the dash, near the strut tower

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C102 (10 cavities)

Engine harness to the fuel injector harness, on the right rear of the engine compartment, near the generator

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C108 (5 cavities)

Engine harness to the fuel injector harness, on the right rear of the engine compartment, near the generator

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C111 (7 cavities)

Engine harness to the transmission/transaxle harness, mounted on the left side of the transmission/transaxle housing

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C156 (3 cavities)

Engine harness to the wiper harness, left side of the engine compartment, near the strut tower

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Inline Harness Connector End Views in Wiring Systems

C200 (102 cavities)

Instrument panel harness to the crossbody harnesses, mounted behind the right hand side of the instrument panel, near the shroud

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C400 (8 cavities)

Crossbody harness to the rear body harness, below the right sill panel of the rear compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C405 (6 cavities)

Crossbody 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

C430 (4 cavities)

Center rear of the rear compartment lid

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G111 (VIN M)

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

Harness Routing Views in Wiring Systems

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G113

Lower left front of the engine, on the transmission/transaxle stud, near the starter

Harness Routing Views in Wiring Systems

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G117

Lower left front of the engine, on the transmission/transaxle stud, near the starter

Harness Routing Views in Wiring Systems

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G201

Behind the instrument panel, on the right side of the brake pedal bracket

Harness Routing Views in Wiring Systems

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G301

At the base of the left B pillar

Harness Routing Views in Wiring Systems

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G302

At the base of the right B pillar

Harness Routing Views in Wiring Systems

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P400

Right rear of the rear compartment

Harness Routing Views in Wiring Systems

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P405

Rear underside of the vehicle, above the fuel tank

Harness Routing Views in Wiring Systems

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S102

Engine harness, at the right side of the radiator approximately 17 cm (7 in) from the engine wiring harness junction block 1 breakout

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S105 (VIN M)

Engine harness, approximately 20 cm (8 in) from the engine cooling fan 1 breakout

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S106 (VIN M)

Engine harness, on the left side of the engine compartment above the transmission/transaxle approximately 7 cm (3 in) from the inline connector C111 (automatic transmission/transaxle connector) breakout

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S107 (VIN M)

Engine harness, above the ignition control module approximately 1 cm (1 in) from the ignition control module C2 breakout

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S109 (VIN M)

Engine jumper harness, below the intake plenum approximately 2 cm (1 in) from the fuel injector 2 breakout

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S116 (VIN M)

Engine harness, at the right front corner of the engine compartment approximately 4 (2 in) from PCM breakout

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S121 (VIN M)

Engine jumper harness, below the intake plenum approximately 2 cm (1 in) from the fuel injector 3 breakout

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S122 (VIN M)

Engine harness, on the right side of the engine compartment approximately 15 cm (6 in) from the PCM breakout

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S142 (VIN M)

Engine harness, on the right side of the engine compartment approximately 11 cm (4 in) from the PCM breakout

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S146

Engine harness, on the right side of the engine compartment approximately 24 cm (9 in) from the PCM breakout

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S156 (VIN M)

Engine harness, near the generator approximately 34 cm (13 in) from the C102 breakout

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S163 (VIN M)

Engine harness, at the right side of the radiator approximately 10 cm (4 in) from the right engine coolant fan breakout

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S164 (VIN M)

Engine harness, at the right side of the radiator approximately 4 cm (2 in) from the right engine coolant fan breakout

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S165 (VIN M )

Engine harness, front of the transmission/transaxle approximately 7 cm (3 in) from the engine ground breakout

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S167 (VIN M)

Engine harness, inboard of the coolant bottle on the driver side of the engine compartment, approximately 2 cm (2 in) from the PCM breakout

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S171

Wiper harness, along the left front frame rail approximately 4 cm (2 in) from the windshield washer pump breakout

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S202

Instrument harness, below the center of the instrument panel approximately 15 cm (6 in) from the inline connector C240 breakout

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S209

Instrument panel harness, behind the right side of the driver knee bolster approximately 5 cm (2 in) from the inline connector C201 breakout

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S211

Instrument panel harness, behind the right side of the instrument cluster approximately 4 cm (2 in) from the radio breakout

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S217

Instrument panel harness, behind the right side of the driver knee bolster approximately 5 cm (2 in) from the inline connector C201 breakout

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S223

Instrument panel harness, below the instrument panel compartment approximately 8 cm (3 in) from the inline connector C100 breakout

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S233

Instrument panel harness, below the instrument panel compartment approximately 4 cm (2 in) from the compartment lamp breakout

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S237

Instrument panel harness, below the instrument panel compartment approximately 5 cm (2 in) from the blower motor relay breakout

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S243

Instrument panel harness, below the instrument panel compartment approximately 4 cm (2 in) from the inline connector C100 breakout

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S305

Crossbody harness, on the left side of the rear seat approximately 7 cm (3 in) from the inline connector C371 breakout

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S405

Backup lamp harness, in the rear compartment lid approximately 13 cm (5 in) from the right backup lamp breakout

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S406

Crossbody harness, in the rear compartment under the rear package shelf approximately 15 cm (6 in) from the left rear radio speaker breakout

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S415

Backup lamp harness, in the rear compartment lid approximately 4 cm (2 in) from the right backup lamp breakout

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S425

Fuel tank harness, approximately 43 cm (17 in) from the inliine connector C405 breakout

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