GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Horn Relay

In the center rear of the engine compartment, below the right side underhood fuse block

Horn Component Views in Horns

Horn Connector End Views in Horns

Ignition Lock Cylinder

In the left front of the passenger compartment, in the right side of the steering column

Theft Deterrent System Component Views

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Ignition Switch

Under the left hand of the instrument panel, on the base of the steering column

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Instrument Cluster

In the left side of the IP, above the steering column

Instrument Cluster and HUD Component Views in Instrument Panel, Gauges and Console

Instrument Cluster and HUD Connector End Views in Instrument Panel, Gauges and Console

IP Fuse Block

Under the left side of the IP, on the left IP sound insulator

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

IP Junction Block

Under the right side of the IP, near the rear of the IP compartment

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Lamp Control Module (LCM) (Buick)

In the center of the IP, below and behind the center heater outlets

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

LH Front Door Jamb Switch

Rear of the left front door, on the door latch assembly

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LH Front Door Lock Actuator

At the rear of the left hand front door, on the door latch assembly

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

LH Front Door Lock Cylinder Switch

At the left hand front door, on the door lock cylinder

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LH Rear Door Jamb Switch

Rear of the left hand rear door, on the door latch assembly

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LH Rear Door Lock Actuator

At the rear of the left hand rear door, on the door latch assembly

Lighting Systems Component Views in Lighting Systems

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Park/Neutral Position (PNP) Switch

On the left side of the transaxle, below the exhaust gas recirculation valve

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Pass-Key II® Theft Deterrent Module

Under the right side of the IP, near the rear of the IP compartment

Theft Deterrent System Component Views

Theft Deterrent System Connector End Views

Powertrain Control Module (PCM)

In the left front of the engine compartment, near the air cleaner housing

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Rear Compartment Lid Tamper Switch

On the center rear of the rear compartment lid, on the rear compartment lid lock cylinder

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Theft Deterrent System Connector End Views

Remote Function Actuator (RFA) Module

Under the right side of the IP, near the rear of the IP compartment

Keyless Entry Component Views in Keyless Entry

Keyless Entry Connector End Views in Keyless Entry

Remote Indicator Bank

In the left side of the IP, near the instrument cluster

Instrument Cluster and HUD Component Views in Instrument Panel, Gauges and Console

Instrument Cluster and HUD Connector End Views in Instrument Panel, Gauges and Console

RH Front Door Jamb Switch

Rear of the right hand front door, on the door latch assembly

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RH Front Door Lock Actuator

Rear of the right hand front door, on the door latch assembly

Lighting Systems Component Views in Lighting Systems

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RH Front Door Lock Cylinder Switch

At the rear of the right hand front door, on the door lock cylinder

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RH Maxifuse® Block

Center rear of the engine compartment, near the cowl

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

RH Rear Door Jamb Switch

Rear of the right hand rear door, on the door latch assembly

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Starter Enable Relay

Under the left side of the IP, above the IP fuse block.

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Starter Solenoid

On the center front of the engine, on the starter motor

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

C101 (66 cavities)

The body harness to the engine harness, in the right rear of the engine compartment, near the strut tower

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (116 cavities)

The body harness to the IP harness, under the center of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C202 (48 cavities)

The body harness to the steering column harness, under the left side of the IP, to the left of the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C502 (6 cavities)

The body harness to the left front door trim harness, on the lower front of the left front door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C503 (4 cavities Buick, 3 cavities Pontiac)

The body harness to the left front door trim harness, on the lower front of the left front door

Harness Routing Views in Wiring Systems

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C602 (4 cavities Buick, 3 cavities Pontiac)

The body harness to the right front door harness, on the lower front of the right front door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C603 (6 cavities)

The body harness to the right front door harness, on the lower front of the right front door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C702 (4 cavities)

The body harness to the left rear door harness, on the lower front of the left rear door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C802 (4 cavities)

The body harness to the right rear door harness, on the lower front of the right rear door

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G105

In the right front of the engine compartment

Power and Grounding Component Views in Wiring

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G202

In the left front of the passenger compartment, behind the left kick panel trim plate

Power and Grounding Component Views in Wiring

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P101

In the right rear of the engine compartment, near the right front strut tower

Harness Routing Views in Wiring Systems

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P405 (Buick)

On the center rear of the rear compartment lid, near the lock cylinder

Harness Routing Views in Wiring Systems

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P405 (Oldsmobile)

On the center rear of the rear compartment lid, near the lock cylinder

Harness Routing Views in Wiring Systems

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P405 (Pontiac)

On the center rear of the rear compartment lid, near the lock cylinder

Harness Routing Views in Wiring Systems

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P408

In the left center of the rear compartment, near the left wheel house

Harness Routing Views in Wiring Systems

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P500

On the front of the left front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P600

On the front of the right front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P700

On the front of the left rear door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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P800

On the front of the right rear door jamb, near the door hinges

Harness Routing Views in Wiring Systems

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S207

In the body harness, approximately 12 cm (4.7 in) from the center IP harness channel breakout

Harness Routing Views in Wiring Systems

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S210

In the body harness, approximately 9 cm (3.5 in) from the left edge of the IP harness channel

Harness Routing Views in Wiring Systems

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S214 (Buick)

In the IP harness, approximately 10.5 cm (4.1 in) from the C200 breakout

Harness Routing Views in Wiring Systems

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S214 (Pontiac)

In the IP harness, approximately 6.5 cm (2.6 in) from the IP compartment lamp breakout

Harness Routing Views in Wiring Systems

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S217

In the body harness, approximately 20 cm (7.9 in) from C202

Harness Routing Views in Wiring Systems

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S218

In the body harness, approximately 49.5 cm (19.5 in) from the top edge of the left kick wall channel

Harness Routing Views in Wiring Systems

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S225

In the body harness, approximately 49.5 cm (19.5 in) from the top edge of the left kick wall channel

Harness Routing Views in Wiring Systems

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S233

In the body harness, approximately 22 cm (8.7 in) into the C101 breakout

Harness Routing Views in Wiring Systems

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S266

In the body harness, approximately 37 cm (14.6 in) from the remote function actuator module breakout

Harness Routing Views in Wiring Systems

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S270

In the body harness, approximately 8 cm (3.1 in) from the edge of the right IP harness channel end

Harness Routing Views in Wiring Systems

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S272

In the body harness, approximately 12 cm (4.7 in) from the remote function actuator module breakout

Harness Routing Views in Wiring Systems

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S289

In the body harness, approximately 31.5 cm (12.4 in) from the top edge of the left kick wall channel

Harness Routing Views in Wiring Systems

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S291 (Buick)

In the IP harness, approximately 5 cm (2 in) into C200 breakout

Harness Routing Views in Wiring Systems

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S291 (Pontiac)

In the IP harness, approximately 12 cm (4.7 in) from the IP compartment lamp breakout

Harness Routing Views in Wiring Systems

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S310

In the body harness, approximately 9 cm (3.5 in) from the G201 breakout

Harness Routing Views in Wiring Systems

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S603

In the body harness, approximately 5.5 cm (2.2 in) from P600

Harness Routing Views in Wiring Systems

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SP340

In the left front of the passenger compartment, below the front door sill trim panel

Harness Routing Views in Wiring Systems

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