GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Accessory Switch (SEO)

Left side of the Instrument Panel

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Brake Fluid Level Indicator Switch

Left side of the brake fluid reservoir

Instrument Panel, Gages, and Console Component Views

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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

Daytime Running Lamp (DRL) Control Module

Behind the left side of the instrument panel, on the electronic brake control module bracket

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Electronic Brake Control Module (EBCM)

Behind the left side of the instrument panel, left side of the brake pedal bracket

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Engine Coolant Level Indicator Module

Right side of the radiator

Instrument Panel, Gages, and Console Component Views

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Engine Coolant Temperature (ECT) Sensor

Left side of the top of the engine

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Engine Oil Level Sensor (VIN K)

Front center of the engine oil pan

Instrument Panel, Gages, and Console Component Views

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Engine Oil Level Sensor (VIN M)

Center of the engine, above the starter

Instrument Panel, Gages, and Console Component Views

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Engine Oil Pressure Indicator Switch

Front of the engine, above the starter

Instrument Panel, Gages, and Console Component Views

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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

Inline Harness Connector End Views in Wiring Systems

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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Headlamp Switch

Left side of the instrument panel, to the left of the steering column

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Lighting Systems Connector End Views in Lighting Systems

Ignition Control (IC) Module (VIN K)

Top right front of the engine

Engine Controls Component Views in Engine Controls - 3.8L

Powertrain Control Module Connector End Views in Engine Controls - 3.8L

Ignition Control (IC) Module (VIN M)

Top center rear of the engine

Engine Controls Component Views in Engine Controls - 3.1L

Powertrain Control Module Connector End Views in Engine Controls - 3.1L

Ignition Switch

On the lower side of the steering column

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Inflatable Restraint Sensing and Diagnostic Module (SDM)

Below the front passenger seat

SIR Component Views in SIR

SIR Connector End Views in SIR

Instrument Cluster

Left side of the instrument panel

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Park Brake Indicator Switch

Lower left A pillar, part of the park brake assembly

Instrument Panel, Gages, and Console Component Views

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Powertrain Control Module (PCM) (VIN K)

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

Engine Controls Component Views in Engine Controls - 3.8L

Powertrain Control Module Connector End Views in Engine Controls - 3.8L

Powertrain Control Module (PCM) (VIN M)

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

Engine Controls Component Views in Engine Controls - 3.1L

Powertrain Control Module Connector End Views in Engine Controls - 3.1L

Radio

Center of the instrument panel

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Entertainment Connector End Views in Entertainment

SEO Switch Panel Diode

Instrument panel harness, behind the instrument cluster approximately 12 cm (5 in) from the digital speedometer module breakout

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Theft Deterrent Module

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

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

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

C110 (8 cavities)

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

Harness Routing Views in Wiring Systems

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

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

C201 (48 cavities)

Instrument panel harness to the steering column harness, behind the instrument panel on the right side of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C213 (4 cavities)

Instrument panel harness to the wiper harness, behind the instrument panel, on the right side of the brake pedal support

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C219 (23 cavities)

Instrument panel harness to the wiper harness, behind the instrument panel, on the right hand side of the brake pedal support

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

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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G205

Behind the instrument panel, on the left side of the brake pedal brakes

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G251

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

Harness Routing Views in Wiring Systems

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P103

Left rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

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S105 (VIN K)

Engine harness, approximately 8 cm (3 in) from the cruise control 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 K)

Engine harness, below the left side of the radiator approximately 4 cm (2 in) from the powertrain control module

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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 C111 (automatic transmission/transaxle connector)

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S116 (VIN K)

Engine harness, at the right strut tower approximately 4 cm (2 in) from the PCM

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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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S170

Wiper harness, near the left strut tower approximately 7 cm (3 in) from the brake motor breakout

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S203

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

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S207

Instrument panel harness, below the left side of the instrument panel approximately 54 cm (21 in) from the C219 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 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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S212

Instrument panel harness, behind the instrument cluster approximately 8 cm (3 in) from the instrument cluster breakout

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S213

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

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S222

Instrument panel harness, behind the left side of the instrument cluster approximately 4 cm (2 in) from the headlamp switch breakout

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S289

Instrument panel harness, below the center of the instrument panel approximately 1 cm (0.5 in) from the C240 breakout

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S290

Instrument panel harness, below the instrument panel compartment approximately 21 cm (8 in) from the blower motor relay breakout

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