GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Data Link Connector

Upper left side of the instrument panel near the steering column

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Driver Door Module

Middle of the driver door, behind the door trim panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Driver Door Switch Assembly

Center top of the left front door, in the door trim panel below the inside door handle

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

LH Front Heated Seat Back Element

Left front of the passenger compartment, in the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Front Heated Seat Cushion Element

Left front of the passenger compartment, in the left front seat cushion

Power Seat Component Views

Power Seat Connector End Views

LH Front Heated Seat Module

Left front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Front Heated Seat Switch

Left front door trim panel, in the switch panel

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Adaptive Lumbar Module

Left front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Adaptive Lumbar Pump Motor

Left front of the passenger compartment, in the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Lumbar Horizontal Motor

Left front of the passenger compartment, in the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Lumbar Horizontal Position Sensor

Left front of the passenger compartment, in the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Lumbar Switch

Left front seat, on the left side of the seat cushion

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Lumbar Vertical Motor

Left front of the passenger compartment, in the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Lumbar Vertical Position Sensor

Left front of the passenger compartment, in the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Front Seat Massage Module

Left front of the passenger compartment, in the upper left corner of the seat back

Power Seat Component Views

Power Seat Connector End Views

LH Power Seat Switch

Left front seat, on the left side of the seat cushion

Power Seat Component Views

Power Seat Connector End Views

LH Rear Door Module

Front of the left rear door, behind the door trim panel near the radio speaker

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

LH Rear Heated Seat Back Element

Left rear of the passenger compartment, in the left rear seat back

Power Seat Component Views

Power Seat Connector End Views

LH Rear Heated Seat Cushion Element

Left rear of the passenger compartment, in the left rear seat cushion

Power Seat Component Views

Power Seat Connector End Views

LH Rear Heated Seat Module

Center rear of the passenger compartment, in the rear seat back

Power Seat Component Views

Power Seat Connector End Views

LH Rear Heated Seat Switch

Center top of the left hand rear door, in the door trim panel near the inside door handle

Power Seat Component Views

Power Seat Connector End Views

LH Rear Seat Lumbar Horizontal Motor

Left rear of the passenger compartment, in the left rear seat back

Power Seat Component Views

Power Seat Connector End Views

LH Rear Seat Lumbar Switch

Left rear of the passenger compartment, in the left rear door trim panel near the inside door handle

Power Seat Component Views

Power Seat Connector End Views

LH Rear Seat Lumbar Vertical Motor

Left rear of the passenger compartment, in the left rear seat back

Power Seat Component Views

Power Seat Connector End Views

LH Seat Belt Tower Motor

Left front of the passenger compartment, in the outboard side of the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Seat Belt Tower Position Sensor

Left front of the passenger compartment, in the outboard side of the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Seat Front Vertical Motor

Left front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Seat Front Vertical Position Sensor

Left front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Seat Horizontal Motor

Left front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Seat Horizontal Position Sensor

Left hand front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Seat Rear Vertical Motor

Left hand front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Seat Rear Vertical Position Sensor

Left hand front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

LH Seat Recline Motor

Left hand front of the passenger compartment, inboard side of the left front seat back

Power Seat Component Views

Power Seat Connector End Views

LH Seat Recline Position Sensor

Left hand front of the passenger compartment, inboard side of the left front seat back

Power Seat Component Views

Power Seat Connector End Views

Memory Function Switch

Center top of the left hand front door, in the door trim panel below the inside door handle

Power Seat Component Views

Power Seat Connector End Views

Memory Seat Module

Left hand front of the passenger compartment, under the left front seat

Power Seat Component Views

Power Seat Connector End Views

Passenger Door Module

Right front door, behind the door trim panel

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

Rear Fuse Block

Left rear of the passenger compartment, under the rear seat

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

RH Front Heated Seat Back Element

Right hand front of the passenger compartment, in the right front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Front Heated Seat Cushion Element

Right hand front of the passenger compartment, in the right front seat cushion

Power Seat Component Views

Power Seat Connector End Views

RH Front Heated Seat Module

Right hand front of the passenger compartment, under the right front seat

Power Seat Component Views

Power Seat Connector End Views

RH Front Heated Seat Switch

Center top of the left hand front door, in the door trim panel below the inside door handle

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Adaptive Lumbar Module

Right hand front of the passenger compartment, in the right front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Adaptive Lumbar Pump Motor

Right hand front of the passenger compartment, in the right front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Lumbar Horizontal Motor

Right hand front of the passenger compartment, in the right front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Lumbar Switch

Right hand front seat, on the right hand side of the seat cushion

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Lumbar Vertical Motor

Right hand front of the passenger compartment, in the right front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Lumbar Vertical Position Sensor

Right hand front of the passenger compartment, in the front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Front Seat Massage Module

Right hand front of the passenger compartment, in the upper right corner seat back

Power Seat Component Views

Power Seat Connector End Views

RH Rear Door Module

Front of the right rear door, behind the door trim panel near the radio speaker

Power Door Systems Component Views in Doors

Power Door Systems Connector End Views in Doors

RH Rear Heated Seat Back Element

Right hand rear of the passenger compartment, in the right rear seat back

Power Seat Component Views

Power Seat Connector End Views

RH Rear Heated Seat Cushion Element

Right hand rear of the passenger compartment, in the right rear seat cushion

Power Seat Component Views

Power Seat Connector End Views

RH Rear Heated Seat Module

Center rear of the passenger compartment, in the rear seat back

Power Seat Component Views

Power Seat Connector End Views

RH Rear Heated Seat Switch

Center top of the right hand rear door, in the door trim panel next to the inside door handle

Power Seat Component Views

Power Seat Connector End Views

RH Rear Seat Lumbar Horizontal Motor

Right hand rear of the passenger compartment, in the right rear seat back

Power Seat Component Views

Power Seat Connector End Views

RH Rear Seat Lumbar Switch

Right hand rear of the passenger compartment, in the right rear door trim panel near the inside door handle

Power Seat Component Views

Power Seat Connector End Views

RH Rear Seat Lumbar Vertical Motor

Right hand rear of the passenger compartment, in the right rear seat back

Power Seat Component Views

Power Seat Connector End Views

RH Seat Belt Tower Motor

Right hand front of the passenger compartment, in the outboard side of the right front seat back

Power Seat Component Views

Power Seat Connector End Views

RH Seat Front Vertical Motor

Right hand front of the passenger compartment, under the right front seat

Power Seat Component Views

Power Seat Connector End Views

RH Seat Horizontal Motor

Right hand front of the passenger compartment, under the right front seat

Power Seat Component Views

Power Seat Connector End Views

RH Seat Power Seat Switch

Right hand front seat, on the right hand side of the seat cushion

Power Seat Component Views

Power Seat Connector End Views

RH Seat Rear Vertical Motor

Right hand front of the passenger compartment, under the right front seat

Power Seat Component Views

Power Seat Connector End Views

RH Seat Recline Motor

Right hand front of the passenger compartment, in the inboard side of the right front seat back

Power Seat Component Views

Power Seat Connector End Views

C300 (18 cavities)

Power seat harness to body harness, left center of the passenger compartment under the left front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C306 (30 cavities)

Rear heated seat harness to body harness, under left lower corner of the rear seat back near the rear fuse block

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C307 (18 cavities)

Passenger power seat harness to body harness, right center of the passenger compartment under the right front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C314 (4 cavities)

Power seat harness to body harness, left center of passenger compartment under the left front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C317 (10 cavities) (w/V4U)

Body harness to upfitter harness, left rear of the passenger compartment

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C320 (8 cavities)

Rear heated seat back harness to rear heated seat cushion harness, right rear passenger compartment under the rear seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C323 (4 cavities)

Power seat harness to body harness, left center of the passenger compartment under the left front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C324 (16 cavities) (w/o AC9)

Body harness to power seat harness, left center of the passenger compartment under the left front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C325 (4 cavities)

Body harness to power seat harness, right center of the passenger compartment under the right front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C326 (16 cavities) (w/KA1, AM3)

Body harness to power seat harness, right center of the passenger compartment under the right front seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C500 (18 cavities)

Driver door harness to body harness, left front corner of the passenger compartment near the P500 pass through

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C501 (30 cavities)

Driver door harness to left door trim harness, in the driver door near the door trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C600 (18 cavities)

Passenger door harness to body harness, right front corner of the passenger compartment near the P600 pass through

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C601 (30 cavities)

Passenger door harness to right front door trim harness, in the passenger door near the door trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C700 (6 cavities)

Left rear door harness to body harness, left side of the passenger compartment in the door pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C701 (10 cavities)

Left rear door harness to body harness, left side of the passenger compartment in the door pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C702 (30 cavities)

Left rear door harness to left rear door trim harness, in the left rear door near the door trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C800 (7 Cavities)

Right rear door harness to body harness, right side of the passenger compartment in the door pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C801 (10 cavities)

Right rear door harness to body harness, right side of the passenger compartment in the door pillar

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C802 (30 cavities)

Right rear door harness to right rear door trim harness, in the right rear door near the door trim panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G301

Under the left corner of the rear seat

Power and Grounding Component Views in Wiring Systems

--

G302

Under the right front seat, on the number two bar near the inflatable restraint sensing diagnostic module

Power and Grounding Component Views in Wiring Systems

--

P500

Left front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

--

P501

Behind the left front door trim panel, near the radio speaker

Harness Routing Views in Wiring Systems

--

P600

Right front door jamb, near the door hinges

Harness Routing Views in Wiring Systems

--

P601

Behind the right front door trim panel, near the radio speaker

Harness Routing Views in Wiring Systems

--

S302

In the console harness, approximately 57 cm (22.7 in) from C304

Harness Routing Views in Wiring Systems

--

S309

In the body harness, approximately 87 cm (34.3 in) from C300

Harness Routing Views in Wiring Systems

--

S314

In the body harness, approximately 75.5 cm (29.7 in) from C700

Harness Routing Views in Wiring Systems

--

S323

In the body harness, approximately 40 cm (15.7 in) from the battery voltage sensor connector (C315)

Harness Routing Views in Wiring Systems

--

S324

In the left front seat harness, approximately 27 cm (10.6 in) from the left front power seat switch connector

Harness Routing Views in Wiring Systems

--

S325

In the left front seat harness, approximately 37.5 cm (14.8 in) from C300

Harness Routing Views in Wiring Systems

--

S326

In the left front seat harness, approximately 41.0 cm (16.1 in) from C300

Harness Routing Views in Wiring Systems

--

S327

In the left front seat harness, approximately 16.5 cm (6.5 in) from the left front seat belt tower motor connector

Harness Routing Views in Wiring Systems

--

S328

In the left front seat harness, approximately 21 cm (8.3 in) from the left front power seat switch connector

Harness Routing Views in Wiring Systems

--

S329

In the left front seat harness, approximately 26.5 cm (10.4 in) from C300

Harness Routing Views in Wiring Systems

--

S330

In the right front seat harness, approximately 66.5 cm (26.2 in) from the right front seat rear vertical motor connector

Harness Routing Views in Wiring Systems

--

S331

In the right front seat harness, approximately 60 cm (23.6 in) from the right front seat rear vertical motor connector

Harness Routing Views in Wiring Systems

--

S332

In the right front seat harness, approximately 25 cm (9.8 in) from the right front seat rear vertical motor connector

Harness Routing Views in Wiring Systems

--

S333

In the rear seat harness, approximately 56 cm (22 in) from C306

Harness Routing Views in Wiring Systems

--

S334

In the rear seat harness, approximately 71 cm (28 in) from C306

Harness Routing Views in Wiring Systems

--

S340

In the left outside rearview mirror

Harness Routing Views in Wiring Systems

--

S341

In the left outside rearview mirror

Harness Routing Views in Wiring Systems

--

S501

In the left front door trim harness, approximately 23.5 cm (9.3 in) from C501

Harness Routing Views in Wiring Systems

--

S700

In the left rear door harness, approximately 17 cm (6.7 in) from the driver door module C1

Harness Routing Views in Wiring Systems

--

S704

In the left rear door trim harness, approximately 18 cm (7.1 in) from the left rear power window switch connector

Harness Routing Views in Wiring Systems

--

S800

In the right rear door harness, approximately 16.5 cm (6.5 in) from the right rear door module C3

Harness Routing Views in Wiring Systems

--

S803

In the right rear door trim harness, approximately 18 cm (7.1 in) from the right rear power window switch connector

Harness Routing Views in Wiring Systems

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