GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch Coil

Part of A/C compressor

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HVAC Connector End Views

A/C Compressor Clutch Diode

Engine compartment, in underhood accessory wiring junction block

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A/C Refrigerant Pressure Sensor

LH side of engine compartment, below accumulator

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Automatic Transaxle

Lower LH side of engine compartment

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Bank 1 Knock Sensor (KS)

Front of engine above starter

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Body Control Module (BCM)

Below RH side of I/P, right of I/P compartment

Body Control System Component Views

Body Control System Connector End Views

Camshaft Position (CMP) Sensor

Engine compartment, RH side of engine, above A/C compressor clutch

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor (24X)

RH side of engine at end of crankshaf, behind harmonic balencer

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor (7X)

Lower rear of engine

Engine Controls Component Views

Engine Controls Connector End Views

Cruise Control Module

Engine compartment, near LH strut tower

Antilock Brake System Component Views

Cruise Control Connector End Views

Data Link Connector (DLC)

Below sterring column, bottom of knee boister

Data Link Communications Component Views

Data Link Communications Connector End Views

Driver Information Display

In roof console

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Instrument Panel, Gages, and Console Connector End Views

Electronic Brake Control Module/Electronic Brake Traction Control Module (EBCM/EBTCM)

LH side of I/P, above parking cable bracket

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Engine Coolant Fan Motor

Mounted to rear side of radiator

Engine Controls Component Views

Engine Controls Connector End Views

Engine Coolant Temperature (ECT) Sensor

LH side top of engine

Engine Controls Component Views

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Engine Oil Level Indicator Switch

center of engine oil pan

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

Top rear of engine, below ignition control module

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Vacuum Switch

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

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EVAP Vent Solenoid Valve

Behind left rear fascia splash shield behind wheel well

Engine Controls Component Views

Engine Controls Connector End Views

Exhaust Gas Recirculation (EGR) Valve

Upper LH side of engine

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Injectors

Top of engine at each cylinder intake port

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Fuel Tank

Below LH side, middle of vehicle

Engine Controls Component Views

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Fuse Block

RH side of I/P, in RH door opening

Power and Grounding Component Views

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Generator (K68)

Top rear RH side of engine

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Engine Controls Connector End Views

Generator (KG9)

Top rear RH side of engine

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Engine Controls Connector End Views

Heated Oxygen Sensor 1 (HO2S 1)

Rear of engine, in exhaust manifold

Power and Grounding Component Views

Engine Controls Connector End Views

Heated Oxygen Sensor 2 (HO2S 2)

In exhaust system, behind catalytic converter

Power and Grounding Component Views

Engine Controls Connector End Views

Heater and A/C Control

Center of I/P, below radio

HVAC Component Views

HVAC Connector End Views

Idle Air Control Valve (IAC)

Top of engine, front of throttle assembly

Power and Grounding Component Views

Engine Controls Connector End Views

Ignition Control (IC) Module

Top center rear of engine

Power and Grounding Component Views

Engine Controls Connector End Views

Instrument Cluster

LH side of I/P

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Intake Air Temperature (IAT) Sensor

LF of engine compartment, on air intake duct, near throttle body

Power and Grounding Component Views

Engine Controls Connector End Views

Manifold Absolute Pressure (MAP) Sensor

RH Top of engine

Power and Grounding Component Views

Engine Controls Connector End Views

Mass Air Flow (MAF) Sensor

LF of engine compartment, in air cleaner duct

Power and Grounding Component Views

Engine Controls Connector End Views

Powertrain Control Module (PCM)

Engine compartment, inside air cleaner assembly

Power and Grounding Component Views

Engine Controls Connector End Views

Radio

Center of I/P console

Entertainment Component Views

Entertainment Connector End Views

Rear Side Door Actuator Motor

RH quarter panel, above wheelhouse

Power Door Systems Component Views

Power Door Systems Connector End Views

Stop Lamp Switch

Mounted on brake pedal bracket

Antilock Brake System Component Views

Cruise Control Connector End Views

Throttle Position (TP) Sensor

Top of engine, on throttle assembly

Engine Controls Component Views

Engine Controls Connector End Views

Transaxle Range Switch

Rear LH side of engine compartment, mounted to top of transaxle

Automatic Transmission Electronic Component Views

Engine Controls Connector End Views

Underhood Accessory Wiring Junction Block

RH side of engine compartment, forward of strut tower

Power and Grounding Component Views

Power and Grounding Connector End Views

Vehicle Speed Sensor (VSS)

Lower RR of engine compartment, mounted to RH side of transaxle

Engine Controls Component Views

Engine Controls Connector End Views

C101 (10 cavities)

I/P wiring harness to engine wiring harness, LH side of engine compartment, next to C103 and C181

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C102 (10 cavities)

Engine wiring harness to fuel injector wiring harness, top of engine near generator

Harness Routing Views

Inline Harness Connector End Views

C108 (3 cavities)

Engine wiring harness to fuel injector wiring harness, top of engine, near generator

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C111 (7 cavities)

Engine wiring harness to automatic transaxle wiring harness, lower LH side of engine compartment, front of automatic transaxle

Harness Routing Views

Inline Harness Connector End Views

C181(6 cavities)

I/P wiring harness to engine wiring harness, in lower LH side of engine compartment, next to C101 and C103

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C200 (56 cavities)

I/P wiring harness to RH side of body wiring harness, behind RH side of I/P compartment, below P100

Harness Routing Views

Inline Harness Connector End Views

C203 (56 cavities)

I/P wiring harness to LH side of body harness, LH side of steering column, below P101

Harness Routing Views

Inline Harness Connector End Views

C305 (12 cavities)

Body wiring harness to electronic brake control wiring harness and fuel sender wiring harness, mounted as a pass through, beneath vehicle behind driver's seat

Harness Routing Views

Inline Harness Connector End Views

C308 (23 cavities)

Body wiring harness to dome lamp wiring harness, inside RH B-pillar, behind lower trim

Harness Routing Views

Inline Harness Connector End Views

C400 (6 cavities)

Body wiring harness to rear lamp wiring harness, behind trim at RH rear corner of rear compartment

Harness Routing Views

Inline Harness Connector End Views

C405 (8 cavities)

Body wiring harness to fuel tank wiring harness, in rear compartment floor forward of spare tire well

Harness Routing Views

Inline Harness Connector End Views

G111

Engine compartment, left of starter, along with battery ground

Harness Routing Views

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G113

Engine compartment, left of starter, along with battery ground

Harness Routing Views

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G117

Engine compartment, left and above starter, near connector C111 to automatic transaxle

Harness Routing Views

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G200

RH side of I/P, secured on underside of cross car beam, left of heater-A/C vent

Harness Routing Views

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G301

Secured to inside of lower LH B-pillar

Harness Routing Views

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G302

Secured near base of RH B-pillar

Harness Routing Views

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G402

Secured to lower RH D-pillar

Harness Routing Views

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P100

On RH side of bulkhead, left of RH strut tower

Harness Routing Views

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P101

On LH side of bulkhead, right of LH strut tower

Harness Routing Views

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S105

Engine wiring harness, below engine coolant fans approximately 13 cm (5 in) from engine coolant fan 1 breakout

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S106

Engine wiring harneson LH side of engine compartment above transaxle approximately 7 cm (3 in) from C111 (automatic transaxle connector)

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S107

Engine wiring harnes above ignition control module approximately 2 cm (1 in) from ignition control module C2 breakout

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S109

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

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S115

Automatic transaxle harness, inside transaxle approximately 11 cm (4 in) from C111

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S121

Engine jumper harnes below intake plenum approximately 2 cm (1 in) from PCM breakout

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S122

Engine wiring harnes,on RH side of engine compartment approximately 15 cm (6 in) from PCM breakout

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S146

Engine wiring harnes, on RH side of engine compartment approximately 15 cm (6 in) from PCM breakou

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S155

Engine wiring harnes, at RH side of radiator approximately 7 cm (3 in) from U/H Accessory Wiring Junction Block 1 breakou

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S167

Engine harness, front LH side of engine Approximately 5   cm (2 in) PCM breakout

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S202

I/P wiring harness below center of I/P approximately 15 cm (6 in) from C240 breakout

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S206

I/P wiring harness below I/P compartment approximately 11 cm (4 in) from blower motor relay breakout

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S209

I/P wiring harness, behind RH side of driver knee bolster approximately 5 cm (2 in) from C201 breakout

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S211

I/P wiring harness, behind RH side of instrument cluster approximately 4 cm (2 in) from radio breakout

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S237

I/P wiring harness, below I/P compartment approximately 5 cm (2 in) from blower motor relay breakout

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S264

I/P harness, RH side of I/P approximately 16 cm (6 in) from relay center breakout

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S425

Fuel tank wiring harness below rear of vehicle approximately 43 cm (17 in) from C405

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