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 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 in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Front Axle Switch

At the front axle, to the right of the differential

Transfer Case Control Component Views

Transfer Case Control Connector End Views

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

TCC/Stop Lamp Switch

Mounted on the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Transfer Case Encoder Motor C1 (4 Cavities) (w/ Push Button Control)

RH of the ATC, below the rear transfer case speed sensor connector

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Encoder Motor C2 (6 Cavities) (w/ Push Button Control)

Top of transfer case, left side

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Select Switch Connector C1 (8 Cavities)

Right of the Instrument Panel Cluster

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Select Switch Connector C2 (4 Cavities)

Right of the Instrument Panel Cluster

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Shift Control Module Connector C1

Behind the RH Front kick panel, the lower connector

Transfer Case Control Component Views

Transfer Case Control Connector End Views

Transfer Case Shift Control Module Connector C2

Behind the RH Front kick panel, the upper connector

Transfer Case Control Component Views

Transfer Case Control Connector End Views

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

Underhood Fuse Block Connector C3 (32 Cavities) (Chassis)

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 C1 Blue (32 Cavities)

RH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

Vehicle Control Module (VCM) (4.3L Engine) Connector C2 Red (32 Cavities)

RH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

Vehicle Control Module (VCM) (4.3L Engine) Connector C3 Clear (32 Cavities)

RH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

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

C108 (16 Cavities)

Transfer Case extension harness to body harness, LH Rear engine compartment near cowl penetration P100

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

G203

(CKT 1050) Body harness, on the RH of the IP, between C203 and the splice packs

Harness Routing Views in Wiring Systems

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G204

(CKT 1050) Body harness, on the right of the IP, between C203 and the splice packs

Harness Routing Views in Wiring Systems

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G205

(CKT 1050) Body harness, RH of the IP, between C203 and the splice packs

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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S121 (w/ NP1)

(CKT 1695) At the body harness, between the breakouts to the VCM and the blower motor relay, 13 cm from the breakout to the VCM

Harness Routing Views in Wiring Systems

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S205

(CKT 1220) IP harness, between the breakouts for the radio and BCM connector C3, 8 cm (3.14 in) from the breakout to the radio

Harness Routing Views in Wiring Systems

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S208

(CKT 40) IP harness, between the breakouts for the radio and BCM connector C3, 8 cm (3.1 in) from the breakout to the radio

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 SP 204

Harness Routing Views in Wiring Systems

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Splice Pack SP203

(CKT 1050) IP harness behind the ashtray, strapped to the harness body

Harness Routing Views in Wiring Systems

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Splice Pack SP204

(CKT 584, CKT 1414, CKT 1415, CKT 1050) Strapped to the body harness, near the center of the IP, left of SP 200

Harness Routing Views in Wiring Systems

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