GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Body Relay Block

Right side of the IP, left of the IP fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

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

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

Lumbar switch, LH

On the left side of the LF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Lumbar switch, RH

On the right side of the RF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Power Recliner Motor, LH

In the LH seat back

Power Seat Component Views

Power Seat Connector End Views

Power Recliner Motor, RH

In the RH seat back

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Memory Module, RH

Under the RH seat

Power Seat Component Views

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Seat Adjuster Memory Module, RH Connector C1 (18 Cavities)

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Memory Module, RH Connector C2 (8 Cavities)

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Memory Module, RH Connector C3 (2 Cavities)

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Switch, LH

On the left side of the LF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Switch, LH Connector C1 (8 Cavities)

On the left side of the LF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Switch, LH Connector (2 Cavities)

On the left side of the LF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Switch, RH

On the right side of the RF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Switch, RH Connector C1 (6 or 8-Way w/o Memory) (8 Cavities)

On the right side of the RF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Seat Adjuster Switch, RH Connector C2 (6 or 8-Way w/o Memory) (2 Cavities)

On the right side of the RF lower seat cushion

Power Seat Component Views

Power Seat Connector End Views

Seat Front Height Motor, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Front Height Motor, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Front Height Transducer, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Front Height Transducer, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Heater Module, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Heater Module, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Lateral Motor, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Lateral Motor, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Lateral Transducer, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Lateral Transducer, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Lumbar Support Actuator, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Lumbar Support Actuator, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Rear Height Motor, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Rear Height Motor, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Rear Height Transducer, LH

Under the LH seat

Power Seat Component Views

Power Seat Connector End Views

Seat Rear Height Transducer, RH

Under the RH seat

Power Seat Component Views

Power Seat Connector End Views

Underhood Fuse Block

On the top of the right inner fenderwell

Power and Grounding Component Views in Wiring Systems

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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

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

C302 (2 Cavities)

In the LF power seat harness inline to the seat recliner motor

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Inline Harness Connector End Views in Wiring Systems

C303 (2 Cavities)

In the RF power seat harness inline to the seat recliner motor

--

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

C317 (6 Cavities)

Body harness to left front seat belt switch and power seats, under the LF seat

Harness Routing Views in Wiring Systems

Inline Harness Connector End 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

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P100

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

Harness Routing Views in Wiring Systems

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S304

(CKT 1440) In the body harness, 6.5 cm (2.6 in) from the breakout to C317 toward the IP

Harness Routing Views in Wiring Systems

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S311

(CKT 1440) In the RH power seat harness

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--

S313

(CKT 1350) In the RH power seat harness

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--

S314

(CKT 2240) In the LH power seat harness

--

--

S315

(CKT 569) In the RH power seat harness

--

--

S316

(CKT 569) In the RH power seat harness

--

--

S320

(CKT 1350) In the RH power seat harness

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--

S321

(CKT 2240) In the RH power seat harness

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--

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

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