GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

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 System

Body Control System Connector End Views in Body Control System

Body Control Module (BCM) Connector C2, (24 Cavities)

At the lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Body Control Module (BCM) Connector C3, (16 Cavities)

At the lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Cruise Control Module (CCM)

At the left rear of the engine compartment, on the cowl

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Door Jamb Switch, LH

To the left of the IP

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Driver Information Display Center, Connector C1 (9 Cavities) (w/ Trip Computer)

At the upper left connector from the front

Driver Information System Components Views

Driver Information Systems Connector End Views

Driver Information Display Center, Connector C1 (6 cavities) (w/o Trip Computer)

At the front overhead in the passenger compartment

Driver Information System Components Views

Driver Information Systems Connector End Views

Driver Information Display Center, Connector C2 (6 cavities) (w/ Short Console)

At the center overhead connector from the front

Driver Information System Components Views

Driver Information Systems Connector End Views

Headlamp Switch

To the left of the IP

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Key Ignition Alarm Switch

At the ignition switch, part of the lock module

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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

Park And Turn Signal Lamp, LH

In the headlamp, below the low beam bulb

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Park And Turn Signal Lamp, RH

In the headlamp, below the low beam bulb

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Powertrain Control Module (PCM) Connector C2 (2.2 L Engine)

To the right of the engine compartment

Engine Controls Component Views in Engine Controls - 2.2L

Powertrain Control Module Connector End Views in Engine Controls - 2.2L

Seat Belt Switch

Under the left seat

Power Seat Component Views in Seats

Power Seat Connector End Views in Seats

Transfer Case Shift Control Module (NV 233)

On the inside of the right side cowl panel (w/ electric shift 4WD)

Transfer Case Control Component Views in Transfer Case

Transfer Case Control Connector End Views in Transfer Case

Transfer Case Shift Control Module (NV 136)

On the inside of the right side cowl panel (w/ electric shift 4WD)

Transfer Case Control Component Views in Transfer Case

Transfer Case Control Connector End Views in Transfer Case

Underhood Bussed Electrical Center (UBEC)

On the top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

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Underhood Bussed Electrical Center (UBEC) Connector C1 (68 Cavities) (4-door Utility Body harness)

In the UBEC

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Bussed Electrical Center (UBEC) Connector C4 (32 Cavities) (Forward Lamps)

Below the UBEC

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM) (4.3 L Engine)

To the right of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

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Vehicle Control Module (VCM) (4.3 L Engine) Connector C4 (24 Cavities)

To the right of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

C120 (5 Cavities)

The engine harness to the body harness, to the right of the engine compartment, near the PCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203 (116 Cavities)

The body harness to the IP harness, to the right of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C209 (16 Cavities) (Pickup)

The body harness to the dome harness, at the left front of the IP, at the left front window

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C209 (16 Cavities) (Utility)

The body harness to the dome harness, at the left front of the IP, at the left front window

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C211 (48 Cavities)

The body harness to the steering column harness, in front of the IP, near the steering column

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C317 (6 Cavities) (w/ Power Seats)

The body harness to the left front seat belt switch and power seats, under the left front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C317 (6 Cavities) (Utility)

The body harness to the left front seat belt switch and power seats, under the left front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G111

(CKT 150) At the forward lamps harness, to the left of the radiator support, near SP100

Power and Grounding Component Views in Wiring Systems

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G112

(CKT 250) At the forward lamps harness, to the right inside of the radiator support, near SP101

Power and Grounding Component Views in Wiring Systems

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G200

(CKT 1850) At the body harness, to the left front of the IP, above P100

Power and Grounding Component Views in Wiring Systems

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G201

(CKT 1850) At the body harness, to the left front of the IP, above P100

Power and Grounding Component Views in Wiring Systems

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G203

(CKT 1050) At the body harness, to the right of the IP, between C203 and the splice packs

Power and Grounding Component Views in Wiring Systems

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G204

(CKT 1050) At the body harness, to the right of the IP, between C203 and the splice packs

Power and Grounding Component Views in Wiring Systems

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G207

(CKT 1850) At the body harness, to the left front of the IP, above P100

Harness Routing Views in Wiring Systems

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G450 (Utility)

(CKT 1350) At the body harness, in the left rear body corner, near C403 to the tail lamp harness

Power and Grounding Component Views in Wiring Systems

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P100

At the IP bulkhead pass-through, to the left rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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S200

(CKT 1850) At the body harness on the breakout to the steering column connectors, 5 cm (1.96 in) from the main harness

Harness Routing Views in Wiring Systems

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S427 (Utility)

(CKT 1350, CKT 1450) At the left rear body harness, 7 cm (2.75 in) below the breakout to the left tail lamp connector C403

Harness Routing Views in Wiring Systems

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Splice Pack SP100

At the forward lamp harness, to the left rear of the radiator support

Harness Routing Views in Wiring Systems

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Splice Pack SP101

At the forward lamp harness, to the right inside of the radiator support

Harness Routing Views in Wiring Systems

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Splice Pack SP200

(CKT 41, CKT 241, CKT 341, CKT 817) Strapped to the body harness, in the center front of the IP, to the right of SP204

Harness Routing Views in Wiring Systems

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Splice Pack SP202

(CKT 379, CKT 1850) Strapped to the body harness, at the left center of the IP

Harness Routing Views in Wiring Systems

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Splice Pack SP203

(CKT 1050) IP harness, on the IP, in front of the ashtray

Harness Routing Views in Wiring Systems

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