GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ammeter

On the left side of the IP, to the right of the steering column

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Automatic Transmission Fluid Temperature Gauge

On the left side of the IP, to the right of the steering column

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Automatic Transmission Shift Control

On the left side of the IP, to the right of the steering column

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Backup Lamps Switch

On the lower right side of the transmission

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lights (DRL) Control Module

On the left kick panel, in the IP harness

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lights (DRL) Diode

Under the right side of the IP, approximately 15 cm (6 in) from the fuse/relay center breakout

Lighting Systems Component Views

Lighting Systems Connector End Views

Daytime Running Lights (DRL) Relay

In the IP fuse block/mini-relay center, position D

Lighting Systems Component Views

Lighting Systems Connector End Views

Driver Information Center (DIC)

On the left side of the IP, part of the instrument panel cluster (IPC)

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Fuse Block 1

On the right side of the IP, under the access cover, on the left side of the IP Fuse block/ mini-relay center

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Hazard Lamps Flasher/Relay Center

In the right side of the IP

Power and Grounding Component Views in Wiring Systems

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HAZARD Name Plate

On the left side of the IP, to the right of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Hazard Warning Switch

On the left side of the IP, to the right of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamps Dimmer Switch

On the left side of the lower part of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Headlamps Switch

On the left side of the IP, to the left of the instrument panel cluster (IPC)

Lighting Systems Component Views

Lighting Systems Connector End Views

IP Fuse Block

In the center of the IP, to the left of the instrument panel cluster (IPC)

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Ignition Switch

On the top side of the lower steering column

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Instrument Panel Cluster (IPC)

In the left side of the IP

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

IP Fuse Block/ Mini-Relay Center

On the right side of the IP, under the access cover

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

IP Lamps Dimmer Switch

On the left side of the IP, to the left of the instrument panel cluster

Lighting Systems Component Views

Lighting Systems Connector End Views

LOW AIR Pressure Indicator

Under the IP, above the accelerator pedal

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Multifunction Switch

On the left side of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Neutral Switch

On the lower right side of the transmission

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

Park Brake Switch (JE5)

On the right side of the IP, on the park brake valve

Lighting Systems Component Views

Lighting Systems Connector End Views

Park Brake Switch (JE3)

On the left kick panel, to the right rear of the park brake lever

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Upfitter Connector C212

Under the left side of the IP, by the left kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C102

The forward lamps harness to the engine harness, on the right lower front of the hood, under the right headlamp

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Inline Harness Connector End Views in Wiring Systems

C200

The IP harness to the engine harness, under the right side of the IP

--

Inline Harness Connector End Views in Wiring Systems

C223 (JE3)

The park brake switch jumper to the IP harness, in the left kick panel, over the rear park brake lever

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Inline Harness Connector End Views in Wiring Systems

C409

The engine harness to the transmission harness, on the left side of the engine, at the bellhousing

--

Inline Harness Connector End Views in Wiring Systems

G101 (LG5)

From the starter motor end ground stud (G101) to the right frame rail ground (G100)

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G102 (LP4/L21)

From the engine harness, on the back of the left cylinder head

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G207 (JE3)

Near the left kick panel, at the park brake switch mounting screw, on the right side of the park brake lever bracket

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P100

On the right side of the bulkhead

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S105

In the forward lamps harness, approximately 15 cm (6 in) to the headlamp, the right high/ low beam breakout

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S109

In the forward lamps harness, approximately 30 cm (12 in) to the headlamp, the left high/ low beam breakout

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--

S138 (LP4/L21)

In the engine harness, approximately 4 cm (2 in) from the generator harness breakout

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--

S138 (LG5)

In the engine harness, approximately 11 cm (4 in) from the main harness, toward the forward lamps harness connector

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--

S142

In the engine harness, approximately 4 cm (2 in) from the throttle position (TP) sensor

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--

S212

In the IP harness, approximately 7 cm (3 in) to the left of the hazard warning switch breakout

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S217

In the IP harness, approximately 20 cm (9 in) to the right of the data link connector (DLC) breakout

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--

S218

In the IP harness, approximately 17 cm (7 in) to the right of the data link connector (DLC) breakout

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--

S220

In the IP harness, approximately 15 cm (6 in) to the right of the data link connector (DLC) breakout

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--

S221

In the IP harness, approximately 12 cm (5 in) to the right of the data link connector (DLC) breakout

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--

S223

In the IP harness, approximately 7 cm (3 in) to the right of the data link connector (DLC) breakout

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--

S224

In the IP harness, approximately 4 cm (2 in) to the right of the data link connector (DLC) breakout

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--

S227

In the IP harness, approximately 57 cm (22 in) from the headlamps dimmer switch breakout

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S230

In the IP harness, approximately 4 cm (2 in) to the right of the instrument panel cluster connector breakout

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S231

In the IP harness, approximately 66 cm (26 in) from the main harness, toward the IP harness connector

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S232

In the IP harness, approximately 59 cm (23 in) from the main harness, toward the IP harness connector

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S233

In the IP harness, approximately 9 cm (4 in) to the right of the daytime running lights control module breakout

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