GM Service Manual Online
For 1990-2009 cars only

--

Location

Locator View

Connector End View

Forward/Back Position Sensor

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

--

Power Seat Connector End Views

Front Height Position Sensor

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

--

Power Seat Connector End Views

Headrest Position Sensor

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

--

Power Seat Connector End Views

LH Adaptive Lumbar Module

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

--

Power Seat Connector End Views

LH Forward/Back Motor

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

--

Power Seat Connector End Views

LH Front Door Module (LFDM)

Front of the left hand front 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 Front Heated Seat Module

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

--

Power Seat Connector End Views

LH Front Heated Seat Switch

Center front of the passenger compartment, on the center console near the shifter

--

Power Seat Connector End Views

LH Front Height Motor

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

--

Power Seat Connector End Views

LH Front Power Door Lock Switch

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

--

Power Door Systems Connector End Views in Doors

LH Front Power Window Switch

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

--

Power Door Systems Connector End Views in Doors

LH Headrest Motor

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

--

Power Seat Connector End Views

LH Lumbar In/Out Motor

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

--

Power Seat Connector End Views

LH Lumbar Pump Motor

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

--

Power Seat Connector End Views

LH Lumbar Switch

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

--

Power Seat Connector End Views

LH Lumbar Up/Down Motor

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

--

Power Seat Connector End Views

LH Rear Door Module (LRDM)

Front of the left hand 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 Cushion

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

--

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 below the inside door handle

--

Power Seat Connector End Views

LH Rear Height Motor

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

--

Power Seat Connector End Views

LH Recline Motor

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

--

Power Seat Connector End Views

LH Seat Switch

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

--

Power Seat Connector End Views

Lumbar In/Out Position Sensor

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

--

Power Seat Connector End Views

Lumbar Up/Down Position Sensor

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

--

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 Connector End Views

Memory Seat Module (MSM)

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

--

Power Seat Connector End Views

Rear Height Position Sensor

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

--

Power Seat Connector End Views

Rear Integration Module (RIM)

Right hand rear of the passenger compartment, behind the rear seat back

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Rear Junction Block

Left hand 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

Recline Position Sensor

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

--

Power Seat Connector End Views

RH Adaptive Lumbar Module

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

--

Power Seat Connector End Views

RH Forward/ Back Motor

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

--

Power Seat Connector End Views

RH Front Door Module (RFDM)

Front of the right hand front 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 Front Heated Seat Module

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

--

Power Seat Connector End Views

RH Front Heated Seat Switch

Center front of the passenger compartment, on the center console near the shifter

--

Power Seat Connector End Views

RH Front Height Motor

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

--

Power Seat Connector End Views

RH Headrest Motor

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

--

Power Seat Connector End Views

RH Lumbar In/Out Motor

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

--

Power Seat Connector End Views

RH Lumbar Pump Motor

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

--

Power Seat Connector End Views

RH Lumbar Switch

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

--

Power Seat Connector End Views

RH Lumbar Up/ Down Motor

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

--

Power Seat Connector End Views

RH Rear Door Module (RRDM)

Front of the right hand 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 Cushion

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

--

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 below the inside door handle

--

Power Seat Connector End Views

RH Rear Height Motor

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

--

Power Seat Connector End Views

RH Recline Motor

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

--

Power Seat Connector End Views

RH Seat Switch

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

--

Power Seat Connector End Views

C300 (18 cavities)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C304 (30 cavities)

Console harness to body harness, left hand front of the center console near the rear blower motor

--

Inline Harness Connector End Views in Wiring Systems

C306 (8 cavities)

Rear heated seat harness to body harness, under left hand lower corner of the rear seat back near the rear bussed electrical center

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C307 (18 cavities)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C313 (8 cavities)

Console trim harness to console harness, in the center console near the shifter

--

Inline Harness Connector End Views in Wiring Systems

C317 (4 cavities)

Power seat harness to lumbar harness, in right hand front seat under rear of seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C318 (4 cavities)

Power seat harness to lumbar harness, in left hand front seat in the seat back

--

Inline Harness Connector End Views in Wiring Systems

C320 (8 cavities)

Rear heated seat back harness to rear heated seat cushion harness, center rear of the passenger compartment near the rear shelf panel on the base of the sail panel

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C502 (10 cavities)

Left hand front door harness to left hand door trim harness, in the left hand front door near the door trim panel

--

Inline Harness Connector End Views in Wiring Systems

C702 (18 cavities)

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

--

--

C802 (18 cavities)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G200

Left hand front corner of the passenger compartment, under the front of the sill trim plate

Power and Grounding Component Views in Wiring Systems

--

G300

Under the left hand front seat, on the number two bar

Power and Grounding Component Views in Wiring Systems

--

G301

Under the left hand front corner of the rear seat

Power and Grounding Component Views in Wiring Systems

--

G302

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

Power and Grounding Component Views in Wiring Systems

--

S302

Body harness, left hand of the passenger compartment approximately 40 cm (15.8 in) from the C300 connector harness breakout

Harness Routing Views in Wiring Systems

--

S306

Body harness, under right hand of the rear seat cushion approximately 20 cm (7.9 in) from the cross car harness breakout

Harness Routing Views in Wiring Systems

--

S307

Body harness, under right hand of the rear seat cushion approximately 60 cm (23.6 in) from the cross car harness breakout

Harness Routing Views in Wiring Systems

--

S310

Rear heated seat back harness, under the rear seat approximately 11.5 cm (4.5 in) from the C306 connector

Harness Routing Views in Wiring Systems

--

S311

Rear heated seat back harness, under the rear seat approximately 21.5 cm (8.5 in) from the C306 connector

Harness Routing Views in Wiring Systems

--

S312

Left hand seat harness, under the left hand front seat approximately 42 cm (16.5 in) from the left hand lumbar switch connector

Harness Routing Views in Wiring Systems

--

S313 (With A45)

Left hand seat harness, under the left hand front seat approximately 52.5 cm (20.7 in) from the forward/back position sensor

Harness Routing Views in Wiring Systems

--

S313 (Without A45)

Left hand seat harness, under the left hand front seat approximately 48.5 cm (19.1 in) from the left hand lumbar switch connector

Harness Routing Views in Wiring Systems

--

S314

Right hand seat harness, under the right hand front seat approximately 57 cm (22.4 in) from the right hand front heated seat module connector

Harness Routing Views in Wiring Systems

--

S315

Right hand seat harness, under the right hand front seat approximately 64 cm (25.2 in) from the right hand front heated seat module connector

Harness Routing Views in Wiring Systems

--

S318

Console harness, center console approximately 4 cm (1.6 in) from the compact disk (CD) changer harness breakout

Harness Routing Views in Wiring Systems

--

S321

Console trim harness, center console approximately 19 cm (7.5 in) from the right hand heated seat switch connector

Harness Routing Views in Wiring Systems

--

S323

Left hand seat harness, under the left hand front seat approximately 33 cm (13 in) from the forward/back position sensor connector

Harness Routing Views in Wiring Systems

--

S324

Left hand seat harness, under the left hand front seat approximately 36 cm (14.2 in) from the forward/back position sensor connector

Harness Routing Views in Wiring Systems

--

S326

Left hand seat harness, under the left hand front seat approximately 47 cm (18.5 in) from the forward/back position sensor connector

Harness Routing Views in Wiring Systems

--

S328

Left hand lumbar harness, in the left hand seat back approximately 50 cm (19.7 in) from the C314 connector

Harness Routing Views in Wiring Systems

--

S329

Left hand lumbar harness, in the left hand seat back approximately 50 cm (19.7 in) from the C314 connector

Harness Routing Views in Wiring Systems

--

S500

Left hand front door trim harness, left hand front door approximately 57 cm (22.4 in) from the power door lock switch connector

Harness Routing Views in Wiring Systems

--

S701

Left hand rear door trim harness, left hand rear door approximately 22 cm (8.7 in) from the C702 connector

Harness Routing Views in Wiring Systems

--

S800

Right hand rear door trim harness, right hand rear door approximately 18 cm (7.1 in) from the C802 connector

Harness Routing Views in Wiring Systems

--