GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Control Module (BCM)

Lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

--

Body Control Module (BCM) Connector C1 (BRN) (24 Cavities)

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 (LT BLU) (24 Cavities)

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)

Lower right of the IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Ignition Key Alarm Switch

At the ignition switch, part of the lock module

--

--

IP Fuse Block

Right of the IP, near the side door jamb switch

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Park Brake Indicator Switch

Part of the automatic transmission controller

Hydraulic Brake Component Views in Hydraulic Brakes

Hydraulic Brake Connector End Views in Hydraulic Brakes

Passlockā„¢ Sensor

At the ignition switch, part of the lock module

Theft Deterrent System Component Views in Theft Deterrent

Theft Deterrent System Connector End Views in Theft Deterrent

Seat Belt Switch

Part of the RH seat belt buckle

--

Seat Belt Connector End Views in Seat Belts

Underhood Fuse Block

On the top of the right inner fenderwell

Power and Grounding Component Views in Wiring Systems

--

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

Vehicle Control Module (VCM)

Left side of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

--

Vehicle Control Module (VCM) Connector C4 (24 Cavities)

Left side of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

C203 (116 Cavities)

Body harness to IP harness, to the left of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C211 (48 Cavities)

Body harness to 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

C315 (6 Cavities)

Body harness to right front seat pigtail connector, under the RF seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

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

Harness Routing Views in Wiring Systems

--

G201

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

Harness Routing Views in Wiring Systems

--

G205

(CKT 1050) At the body harness, to the right of the IP

Harness Routing Views in Wiring Systems

--

G450

(CKT 1350) At the body harness, in the LR body corner, near the tail lamp harness

Harness Routing Views in Wiring Systems

--

P100

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

Harness Routing Views in Wiring Systems

--

S201

(CKT 1807) Body harness 13 cm (5.1 in) from the BCM connector breakout toward the C211 steering column harness connector

Harness Routing Views in Wiring Systems

--

S204

(CKT 41) In the body harness, 45 cm (17.7 in) from the BCM connector breakout toward C211

Harness Routing Views in Wiring Systems

--

S209

(CKT 1850) In the body harness, 6.5 cm (2.6 in) from the BCM connector breakout toward C211

Harness Routing Views in Wiring Systems

--

S211

(CKT 1050) In the body harness, 6.5 cm (2.6 in) from the G203, G204, G205 ground breakout and the ground terminals

Harness Routing Views in Wiring Systems

--

S315

(CKT 569) In the RH power seat harness

--

--

S427

(CKT 1350) At the left rear body harness, 7 cm (2.8 in) below the breakout to the left tail lamp connector C403

Harness Routing Views in Wiring Systems

--