GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Ignition Relay

In the mini-relay center, position A

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

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

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

Radiator Shutter Control Valve (Cat® Diesel)

On the left side of the radiator core support

Cooling System Component Views

Cooling System Connector End Views

Radiator Shutter/ Engine Coolant Temperature (ECT) Switch (Cat® Diesel)

On the right side of the engine, on the upper left side of the coolant outlet extension housing

Cooling System Component Views

Cooling System Connector End Views

C104 (2 cavities) (Cat® Diesel)

In the engine harness, to the radiator shutter jumper harness, on the top of the left front side of the engine

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Inline Harness Connector End Views in Wiring Systems

C200 (56 cavities) (Cat® Diesel)

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

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Inline Harness Connector End Views in Wiring Systems

G101 (Cat® Diesel)

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

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P100

On the right side of the bulkhead

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S127 (Cat® Diesel)

In the engine harness, approximately 4 cm (1.6 in) forward of the ether injection temperature switch breakout

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S142 (Cat® Diesel)

In the engine harness, approximately 4 cm (1.6 in)

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S221 (Cat® Diesel)

In the IP harness, approximately 12 cm (4.7 in) to the right of the data link connector (DLC) breakout

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S230

In the IP harness, approximately 4 cm (1.6 in) to the right of the instrument panel cluster (IPC) connector breakout

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