GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Convenience Center

Under the right side of the IP, on the bulkhead

Power and Grounding Component Views

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IP Fuse Block

To the right of the IP, near the right front door jamb switch

Power and Grounding Component Views

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Power Seat Lumbar Motor, Left Front

Under the left front seat, mounted to the seat frame

Power Seat Component Views

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Power Seat Lumbar Motor, Right Front

Under the right front seat, mounted to the seat frame

Power Seat Component Views

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Power Seat Lumbar Switch, Left Front

On the lower left front of the left front seat

Power Seat Component Views

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Power Seat Lumbar Switch, Right Front

On the lower right front of the right front seat

Power Seat Component Views

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C212

Under the left front seat

Harness Routing Views

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C229

Part of the crossbody harness to the right front power seat, under the right front seat

Harness Routing Views

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C320

Under the LF seat

Harness Routing Views

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C321

Under the LF seat

Harness Routing Views

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C322

Under the RF seat

Harness Routing Views

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C323

Under the RF seat

Harness Routing Views

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G202

On the right side of the instrument panel, mounted to the HVAC plenum bracket

Power and Grounding Component Views

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S227

LF seat harness, approximately 5 cm (2 in) from power seat lumbar switch breakout

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S228

RF seat harness, approximately 5 cm (2 in) from power seat lumbar switch breakout

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S256 (Pickup/Extended Cab)

Crossbody harness, approximately 12 cm (4.5 in) from C210 breakout, toward LH Seat harness breakout

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S256 (Suburban)

Crossbody harness, approximately 30 cm (12 in) from the IP harness breakout, toward the seat belt switch harness beakout

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S256 (Crew Cab)

Crossbody harness, approximately 1 cm (0.5 in) before door lock relay breakout, toward the LH Seat harness breakout

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S256 (Utility)

Crossbody harness, approximately 12 cm (5 in) from the C210 breakout, toward the IP harness breakout

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S259

Crossbody harness, approximately 11 cm (4 in) into seat belt switch harness, toward C212

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S264

IP harness, approximately 2 cm (1 in) from the DLC breakout, toward the instrument cluster breakout

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