GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Brake Pressure Differential Switch

Part of the electronic brake control module, LH frame rail near center of vehicle

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Electronic Brake Control Module (EBCM)

LH frame rail near center of vehicle

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Ignition Switch

RH side of steering column

Tilt Wheel/Column Component Views in Steering

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IP Fuse Block

LH kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

P/B Booster Fluid Flow Alarm

Under the LH side of IP

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

P/B Booster Fluid Flow and Pressure Alarm Delay Module

Under the LH side of IP

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

P/B Booster Fluid Pressure Alarm Switch

LH front of engine compartment

Hydraulic Brake Component Views

Hydraulic Brake Connector End Views

Underhood Fuse-Relay center

Engine compartment, left fender

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C100

LH rear of engine compartment at bulkhead

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C200

Steering column harness at base of column

Harness Routing Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C208

Upfitter harness under LH side of IP near convenience center

Hydraulic Brake Component Views in Hydraulic Brakes

Power and Grounding Connector End Views in Wiring Systems

C217

IP harness under LH side of IP near convenience center and park brake warning switch

Harness Routing Views in Wiring Systems

Power and Grounding Component Views in Wiring Systems

D101

Underhood fuse-relay center, LH front of engine compartment

Harness Routing Views in Wiring Systems

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D202

Brake warning harness under LH side of IP near convenience center and park brake warning switch

Hydraulic Brake Component Views in Hydraulic Brakes

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G103 (4.3L)

Engine harness, at generator bracket

Harness Routing Views in Wiring Systems

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G103 (5.0L, 5.7L, 7.4L)

LH front of Engine harness, near A/C compressor

Harness Routing Views in Wiring Systems

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G103 (6.5L)

Engine harness, at generator bracket

Harness Routing Views in Wiring Systems

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G112

LH engine compartment, under brake master cylinder

Harness Routing Views in Wiring Systems

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G201

IP harness behind LH kick panel, near IP fuse block

Harness Routing Views in Wiring Systems

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P103

Engine compartment on LH side of cowl

Harness Routing Views in Wiring Systems

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R208

IP harness under LH side of IP near brake lever pivot

Harness Routing Views in Wiring Systems

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S101 (4.3L)

Engine harness, approx 20 cm (8 in) from knock sensor breakout toward EBCM

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S101 (5.0L, 5.7L)

Engine harness, approx 10 cm (4 in) from ignition coil breakout toward fuel injector breakout

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S101 (7.4L)

Engine harness, approx 5 cm (2 in) from generator breakout toward C107 breakout

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S101 (6.5L)

Engine harness, approx 22 cm (9 in) from optical fuel temperature sensor toward C100 breakout

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S103 (7.4L)

Engine harness, approx 4 cm (2 in) from ECT sensor breakout toward C100

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S152 (4.3L)

Engine harness, approx 16 cm (6 in) from fuel injector breakout toward G103 breakout

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S152 (5.0L, 5.7L)

Engine harness, approx 4 cm (2 in) from fuel injector breakout toward G103 breakout

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S152 (7.4L)

Engine harness, approx 15 cm (6 in) from oxygen sensor breakout towards P101

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S156 (4.3L)

Engine harness, approx 14 cm (6 in) from knock sensor breakout toward EBCM

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S156 (5.0L, 5.7L)

Engine harness, approx 8 cm (3 in) from fuel injector harness breakout toward ignition coil breakout

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S156 (7.4L)

Engine harness, approx 10 cm (4 in) from A/T input shaft speed sensor breakout toward fuel injector harness breakout

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S156 (6.5L)

Engine harness, approx 4 cm (2 in) from brake pressure differential switch breakout toward transmission

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S201

IP harness, approx 4 cm (2 in) from park brake warning switch breakout toward data link connector breakout

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S216

IP harness, approx 8 cm (3 in) from C200 toward instrument cluster breakout

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S220

IP harness, approx 4 cm (2 in) from C100 toward IP fuse block

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