GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Relay Block

LH of the dash, right of the IP Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Body Control Module (BCM) Connector C1, Brown(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, Blue (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

Data Link Connector (DLC)

To the lower left of the IP

Data Link Communications Component Views

Data Link Communications Connector End Views

Electronic Brake Control Module (EBCM)

Part of the Brake Pressure Modulator Valve (BPMV), at the left rear wheelwell

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

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

Instrument Cluster

In the IP, ahead of the steering column

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

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

IP Fuse Block

LH of the IP, near the door jamb switch, LF

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (PCM) Connector  C1 (2.2L Engine)

On 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

Supplemental Restraint SystemSensing And Diagnostic Module (SDM)

Between the left and the right seats, below the carpeting

SRS Component Views in SRS

SRS Connector End Views in SRS

Transfer Case Shift Control Module Connector C1

Behind the RH Front kick panel, the lower connector

Transfer Case Control Component Views in Transfer Case

Transfer Case Control Connector End Views in Transfer Case

Transfer Case Shift Control Module Connector C2

Behind the RH Front kick panel, the upper connector

Transfer Case Control Component Views in Transfer Case

Transfer Case Control Connector End Views in Transfer Case

Underhood Fuse Block

On top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

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Underhood Fuse Block Connector C1 (68 Cavities) (Body)

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) (Engine)

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) (4.3L Engine)

RH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

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

RH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

C101 (10 Cavities) (2.2L Engine)

Engine harness to 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

C101 (10 Cavities) (4.3L Engine)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203 (116 Cavities)

Body harness to IP harness, to the RH of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G103 (2.2L Engine)

(CKT 351) Engine harness, RH Front of the engine block, under the generator

Harness Routing Views in Wiring Systems

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G103 (4.3L Engine)

(CKT 351) Engine harness, RH Rear of the cylinder head

Harness Routing Views in Wiring Systems

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G105 (2.2L Engine)

(CKT Engine harness, to the RH Rear of the engine block, near the ignition control module

Harness Routing Views in Wiring Systems

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G105 (4.3L Engine)

(CKT 450, 451) Engine harness, to the LH Rear of cylinder head

Harness Routing Views in Wiring Systems

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G200

(CKT 1850) Body harness, on the LH Front of the IP, above P100

Harness Routing Views in Wiring Systems

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G201

(CKT 1850) Body harness, on the LH Front of the IP, above P100

Harness Routing Views in Wiring Systems

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P100

IP bulkhead pass-through,LH Rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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S106 (2.2L Engine)

(CKT 351) Engine harness, between the breakouts to the PCM and to the fuel injector connector, 25 cm (9.84 in) from the breakouts to the PCM

Harness Routing Views in Wiring Systems

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S106 (4.3L Engine)

(CKT 351) Engine harness, between the breakouts to the rear heated oxygen sensors connector and the body harness connector, 7 cm (2.76 in) from the breakout to the heated oxygen sensor connector

Harness Routing Views in Wiring Systems

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S152 (2.2L Engine)

(CKT 351, CKT 413, CKT 451) Engine harness, between the breakouts for the fuel injector connector and the Ignition Control Module, 7cm (2.76 in) from G105

Harness Routing Views in Wiring Systems

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Splice Pack SP201

Body harness, to the left of the IP, below the IP Fuse Block, taped to the Body Harness

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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