GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Brake Pressure Warning Switch

At the RH end of the EBCM

Antilock Brake System Component Views in Antilock Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Body Control Module (BCM)

At the lower rear of the IP, on the heater

Body Control System Component Views in Body Control Systems

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Body Control Module (BCM) Connector C1 (24 cavities)

At the lower rear of the IP, on the heater

Body Control System Component Views in Body Control Systems

Body Control System Connector End Views in Body Control Systems

Data Link Connector (DLC)

Lower RH of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Wiring Systems

Electronic Brake Control Module (EBCM)

Part of the brake pressure modulator valve, at the right front wheelwell

Antilock Brake System Component Views in Antilock Brakes

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Electronic Brake Control Module (EBCM) Connector C1 (10 Cavities)

The body harness connector on the LH of the EBCM

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Electronic Brake Control Module (EBCM) Connector C2 (5 Cavities)

The body harness connector, on the LH of the EBCM

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Electronic Brake Control Module Connector (EBCM) C3 (2 Cavities)

The body harness connector, on the LH of the EBCM

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Front Axle Switch

At the front axle, RH of the differential

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Transfer Case Control Connector End Views in Transfer Case

Instrument Cluster

In the IP, ahead of the steering column

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

IP Fuse Block

To the right of the IP, near the door jamb switch

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Park Brake Warning Switch

Part of the automatic transmission controller

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Hydraulic Brake Connector End Views in Hydraulic Brakes

Transfer Case Control Module (TCCM)

LH lower kick panel, below the IP

Transfer Case Control Component Views in transfer case

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Transfer Case Control Module (TCCM) Connector C1 (32 cavities)

LH lower kick panel, below the IP

Transfer Case Control Component Views in transfer case

Transfer Case Control Connector End Views in transfer case

TCC/Stop Lamp Switch

Mounted on the brake pedal

Engine Electrical Component Views in Engine Electrical

Automatic Transmission Inline Harness Connector End View in Automatic Transmission

Underhood Fuse Block

On the top of the right wheelwell, near the battery

Power and Grounding Component Views in Wiring Systems

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Underhood Fuse Block Connector C1 (68 Cavities)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C2 (68 Cavities)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C6 (2 Cavities)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM)

LH of the engine compartment

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

Vehicle Control Module Connector C1 (32 Cavities)

LH of the engine compartment

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

Wheel Speed Sensor (WSS), LH

Part of the LH wheel knuckle and hub

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Wheel Speed Sensor (WSS), RH

Part of the RH wheel knuckle and hub

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

C101 (8 cavities)

Engine harness to body harness, LH of the engine compartment, near the VCM

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Inline Harness Connector End Views in Wiring Systems

C114 (2 cavities)

Body harness to front axle switch extension harness, LH center of the engine compartment, near the EBCM

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Inline Harness Connector End Views in Wiring Systems

C203 (116 Cavities)

Body harness to IP harness, LH of the IP

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Inline Harness Connector End Views in Wiring Systems

G102

(CKT 350) At the engine harness, to the left rear of the cylinder head

Power and Grounding Component Views in Wiring Systems

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G103

(CKT 351) At the engine harness, to the left rear of the cylinder head

Power and Grounding Component Views in Wiring Systems

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G105

(CKT 451) At the engine harness, to the right rear of the cylinder head

Power and Grounding Component Views in Wiring Systems

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G110

(CKT 150) At the body harness, to the left of the radiator

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P100

RH rear of engine compartment, on cowl

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S106

(CKT 351) At the engine harness, between the breakouts to the VCM connectors and the coolant temperature sensor connector, 27 cm (10.8 in) from the breakout for the VCM connectors

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S124

(CKT 150) In the body harness, 20.5 cm (8.2 in) from the breakout to the cruise control module connector, toward the EBCM

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S125

(CKT 1695) In the body harness, between the breakouts for the EBCM C1 and the cruise control module connector, 6.5 cm (2.6 in) from the EBCM C1 breakout

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S126

(CKT 350) In the body harness, 6.5 cm (2.6 in) from the breakout to the EBCM C1, toward the underhood fuse block

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S138

(CKT 420) At the body harness, between the breakouts to the park lamp switch relay and the radio power antenna, 6.5 cm (2.6 in) from the breakout to the power antenna

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S152

(CKT 351, CKT 451) At the engine harness, between the breakouts for the left rear and right rear engine block grounds,15 cm (5.9 in) from the breakout to the right rear engine ground

Power and Grounding Component Views in Wiring Systems

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S201

(CKT 1807) In the body harness, 13 cm (5.2 in) from the BCM connector breakout , toward the C211 steering column harness connector

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S203

(CKT 241) In the body harness, 39 cm (15.6 in) from the BCM connector breakout toward the C211 steering column connector

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