GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Horn Relay

In the engine wiring harness junction block (underhood fuse relay center), inner column of relays, top relay, (see the label on the inside of the cover for the engine wiring harness junction block)

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Engine Wiring Harness Junction Block (Underhood Fuse Relay Center

At the lower LH corner of the cowl

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Horn Switch

In the center of the steering wheel

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Horn Connector End Views

Horn , A-Note (High)

Body builder installed

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Horn Connector End Views

Horn, F-Note (Low)

Body builder installed

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Horn Connector End Views

IP Wiring Harness Junction Block

At the lower left corner of the cowl on the IP side

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C100

At the lower left corner of the bulkhead; the IP harness end is attached to the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C101

On the engine side of the bulkhead, near C100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C104

On the engine side of the bulkhead near C100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G106

On the front frame crossmember, body builder installed

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P100

At the lower left corner of the bulkhead

Harness Routing Views in Wiring Systems

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S120

In the branch to the engine wiring harness junction block (underhood fuse relay center), 10 cm (4 in) from the main engine harness

Harness Routing Views in Wiring Systems

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S150

Forward Lamp Harness, 18 cm (7 in) from the RH headlamp breakout toward C 100

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S156

Forward Lamp Harness, 27 cm (11 in) from the LH headlamp breakout toward C 100

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S206

In the IP harness, 15 cm (6 in) toward the IP wiring harness junction block from the breakout for the transmission range control

Harness Routing Views in Wiring Systems

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