GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Clutch Pedal Position Switch

At top of clutch pedal

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Cruise Control Module (CCM)

LR of engine compartment, on bulkhead

Cruise Control Component Views

Cruise Control Connector End Views

Cruise Control Switch

In turn signal lever

Cruise Control Component Views

Cruise Control Connector End Views

IP Fuse Block

To the left of the IP, near the left front door jamb switch

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (PCM) (Diesel)

Under RH end of IP, above blower motor, behind IP compartment box

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Stoplamp Switch

On the top of the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Vehicle Control Module (VCM) (Gas)

Engine compartment, near EBCM

Engine Controls Component Views or Engine Controls Component Views in Engine Controls

VCM Connector End Views or VCM Connector End Views in Engine Controls

Vehicle Speed Sensor Buffer

Under RH of IP

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

C100

Part of the engine harness to IP harness, in the left rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200

Behind the right side of the IP, near the heater motor, in foam wrap

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C204

Behind the right side of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C227 (Stoplamp Switch)

IP harness, Inline to the stoplamp switch

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C266

Part of the IP harness to steering column harness, to the left side of the steering column, near the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G103 (Gas)

On the right front side of the engine, near the thermostat housing

Power and Grounding Component Views in Wiring Systems

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G104 (5.7L)

Backside of the right cylinder head

Power and Grounding Component Views in Wiring Systems

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G104 (6.5L)

Top rear of the right cylinder head

Power and Grounding Component Views in Wiring Systems

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G104 (7.4L)

Backside of the engine block, below the right cylinder head

Power and Grounding Component Views in Wiring Systems

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P100

In the left rear side of the engine compartment, at the bulkhead, above C100

Harness Routing Views in Wiring Systems

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P101

In the right rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

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S103 (5.7L)

Engine harness, approx. 8 cm (3 in) from the EGR valve breakout, toward the taillamp harness breakout

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S103 (6.5L)

Engine harness, approx. 12 cm (4.7 in) from the starter solenoid breakout, towards the underhood lamp harness breakout

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S103 (7.4L - A/T)

Engine harness, approx. 8 cm (3 in) from the EGR valve harness breakout, towards the ignition coil harness breakout

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S103 (7.4L - M/T)

Engine harness, approx. 4 cm (1.5 in) from the fuel injector harness breakout, towards the taillamp harness breakout

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S152 (Gas)

Engine harness, approx. 6.5 cm (2.5 in) from the EBCM breakout

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S152 (Diesel)

Engine harness, approx. 4 cm (1.5 in) from the IP harness breakout, toward P101

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S153

IP harness, approx. 13 cm (5 in) from CCM, toward P100

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S211 (Diesel)

IP harness, approx. 16 cm (6 in) into instrument cluster breakout

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S211 (Gas)

IP harness approx. 4 cm (1.5 in) from engine harness breakout

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S215

IP harness, approx. 8 cm (3 in) from the instrument cluster breakout, toward the radio connector breakout

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S220

IP harness, approx. 6 cm (2.5 in) from the steering column harness breakout, toward C100

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S221

IP harness, approx. 40 cm (15.5 in) from instrument cluster breakout

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S222

IP harness, approx. 20 cm (8 in) from the inflatable restraint switch breakout

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S299

IP harness, approx. 4 cm (1.5 in) into the steering column harness breakout, toward C266

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