GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Data Link Connector (DLC)

Attached to the IP carrier, to the left of the steering column

--

Power and Grounding Connector End Views in Wiring Systems

Driver Seat Adjuster Memory Module

Attached to the underside of the driver seat

Power Seat Systems Component Views in Seats

Power Seat Systems Connector End Views in Seats

Driver Seat Adjuster Switch

On the LH side of the driver seat lower trim

Power Seat Systems Component Views in Seats

--

Driver Seat Back Cushion Heater

Attached to the driver seat back cushion

--

--

Driver Seat Cushion Heater

Attached to the driver seat cushion

--

--

Driver Seat Heater Relay K55

Under the LH side of the IP

Power and Grounding Component Views in Wiring Systems

Power Seat Systems Connector End Views in Seats

Driver Seat Heater Switch

In the center of the IP, to the left of the heater and A/C control

Instrument Cluster Component Views in Instrument Panel, Gauges and Console

Power Seat Systems Connector End Views in Seats

Driver Seat Recliner Actuator Motor

Attached to the backrest of the driver seat

Power Seat Systems Component Views in Seats

--

Forward/Backward Seat Adjuster Actuator Motor (Driver)

Attached to the underside of the driver seat

Power Seat Systems Component Views in Seats

--

Forward/Backward Seat Adjuster Actuator Motor (Passenger)

Attached to the underside of the front passenger seat

Power Seat Systems Component Views in Seats

--

Front Height Seat Adjuster Actuator Motor (Driver)

Attached to the underside of the driver's seat

Power Seat Systems Component Views in Seats

--

Front Height Seat Adjuster Actuator Motor (Passenger)

Attached to the underside of the front passenger seat

Power Seat Systems Component Views in Seats

--

Front Side Door Jamb Switch (LH)

In the lower LH A-pillar

--

Lighting Systems Connector End Views in Lighting Systems

Fuse Block

Mounted to the IP, on the lower LH side of the steering column

--

--

Passenger Seat Adjuster Switch

On the RH side of the front passenger seat lower trim

Power Seat Systems Component Views in Seats

--

Passenger Seat Back Cushion Heater

Attached to the front passenger seat back cushion

--

--

Passenger Seat Cushion Heater

Attached to the front passenger seat cushion

--

--

Passenger Seat Heater Relay K56

Under the LH side of the IP

Power and Grounding Component Views in Wiring Systems

Power Seat Systems Connector End Views in Seats

Passenger Seat Heater Switch

In the center of the IP, to the right of the heater and A/C control

Instrument Cluster Component Views in Instrument Panel, Gauges and Console

Power Seat Systems Connector End Views in Seats

Passenger Seat Recliner Actuator Motor

Attached to the underside of the front passenger seat backrest

Power Seat Systems Component Views in Seats

--

Rear Height Seat Adjuster Actuator Motor (Driver)

Attached to the underside of the driver seat

Power Seat Systems Component Views in Seats

--

Rear Height Seat Adjuster Actuator Motor (Passenger)

Attached to the underside of the front passenger seat

Power Seat Systems Component Views in Seats

--

Rear Seat Back Cushion Heater (LH)

Attached to the LH rear seat back cushion

Power Seat Systems Component Views in Seats

--

Rear Seat Back Cushion Heater (RH)

Attached to the RH rear seat back cushion

Power Seat Systems Component Views in Seats

--

Rear Seat Cushion Heater (LH)

Part of the LH rear seat cushion

Power Seat Systems Component Views in Seats

--

Rear Seat Cushion Heater (RH)

Part of the RH rear seat cushion

Power Seat Systems Component Views in Seats

--

Rear Seat Cushion Heater Relay K65 (LH)

Underneath the LH side of the rear seats

Power Seat Systems Component Views in Seats

Power Seat Systems Connector End Views in Seats

Rear Seat Cushion Heater Relay K66 (RH)

Underneath the LH side of the rear seats

Power Seat Systems Component Views in Seats

Power Seat Systems Connector End Views in Seats

Rear Seat Heater Switch (LH)

Attached to the rear of the center console

Power Seat Systems Component Views in Seats

Power Seat Systems Connector End Views in Seats

Rear Seat Heater Switch (RH)

Attached to the rear of the center console

Power Seat Systems Component Views in Seats

Power Seat Systems Connector End Views in Seats

Thermal Switch (Heated Seat)

Located on the corresponding heated seat cushion, part of the seat heated cushion assembly

--

--

C1

In the driver seat adjuster memory module connector, underneath the driver seat

Power Seat Systems Component Views in Seats

--

C3

In the driver seat recliner actuator motor connector, on the driver seat adjuster memory module

Power Seat Systems Component Views in Seats

--

C4

In the rear height seat adjuster actuator motor connector, on the driver seat adjuster memory module

Power Seat Systems Component Views in Seats

--

C5

In the front height seat adjuster actuator motor connector, on the driver seat adjuster memory module

Power Seat Systems Component Views in Seats

--

C6

In the forward/backward seat adjuster actuator motor connector, on the driver seat adjuster memory module

Power Seat Systems Component Views in Seats

--

C7

In the driver seat adjuster switch connector, on the driver seat adjuster memory module

Power Seat Systems Component Views in Seats

--

C200A

In the IP wiring harness to body wiring harness, at the lower LH A-pillar

Power and Grounding Component Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200B

In the IP wiring harness to body wiring harness, at the lower LH A-pillar

Power and Grounding Component Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C310

In the body wiring harness to driver seat adjuster memory module, beneath the driver seat

--

Inline Harness Connector End Views in Wiring Systems

C315

In the body wiring harness to driver seat, beneath the driver seat

--

Power Seat Systems Connector End Views in Seats

C315C

In the power seat to body wiring harness, beneath the driver seat

Power Seat Systems Component Views in Seats

--

C315D

In the LH heated seat to body wiring harness, beneath the driver seat

Power Seat Systems Component Views in Seats

--

C316

In the body wiring harness to passenger seat, beneath the front passenger seat

--

Power Seat Systems Connector End Views in Seats

C316C

In the RH power seat to body wiring harness, beneath the front passenger seat

Power Seat Systems Component Views in Seats

--

C316D

In the RH heated seat to body wiring harness, beneath the driver seat

Power Seat Systems Component Views in Seats

--

C320

In the body wiring harness to rear seat heater wiring harness, beneath the LH side of the rear seat

Power Seat Systems Component Views in Seats

Inline Harness Connector End Views in Wiring Systems

G103

In the body and IP wiring harnesses, at the LH front of the engine compartment, near C102, C105, and C106

Wiper/Washer System Component Views in Wiper/Washer System

--

G200

In the body wiring harness, at the lower LH A-pillar, above and to the left of C200

Power and Grounding Component Views in Wiring Systems

--

P103

At the lower LH A-pillar, forward of G200

Power and Grounding Component Views in Wiring Systems

--

P110

At the lower LH A-pillar, forward of G200

--

--

S103

In the body wiring harness, approximately 27 cm (11 in) from P107

--

--

S104

In the body wiring harness, approximately 83 cm (33 in) from P103, near P107

--

--

S200

In the IP wiring harness, near the data link connector (DLC) branch break off

--

--

S204

In the IP wiring harness, near the multifunction relay K134 connector branch break off

--

--

S220

In the IP wiring harness, near the data link connector (DLC) branch break off

--

--

S250

In the IP wiring harness, near the data link connector (DLC) branch break off

--

--

S264

In the body wiring harness, near G200 branch break off

--

--

S270

In the body wiring harness, approximately 62 cm (24 in) from the C200 branch break off, toward the driver side

--

--

S308

In the body wiring harness, at the base of the RH A-pillar, just under the conduit

--

--

S309

In the body wiring harness, at the base of the RH A-pillar, just under the conduit

--

--

S310

In the rear seat heater wiring harness, approximately 8 cm (3 in) from the C320 branch break off

--

--

S319

In the body wiring harness, at the base of LH A-pillar, just under the conduit

--

--

S320

In the body wiring harness, at the base of the LH A-pillar, just under the conduit

--

--

S321

In the body wiring harness, at the base of the LH A-pillar, just under the conduit

--

--

S330

In the rear seat heater wiring harness, approximately 8 cm (3 in) from the C320 branch break off

--

--

S335

In the rear seat heater wiring harness, approximately 8 cm (3 in) from the C320 branch break off

--

--

S340

In the rear seat heater wiring harness, approximately 8 cm (3 in) from the C320 branch break off

--

--

S345

In the rear seat heater wiring harness, approximately 8 cm (3 in) from the C320 branch break off

--

--