GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Cooling Fan Relay #1

Center rear of engine compartment, left of the windshield wiper motor

Power and Grounding Component Views in Wiring Systems

Cooling System Connector End Views

Engine Compartment Junction Block

Right hand front of the engine compartment, near the A/C accumulator

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systsems

IP Fuse Block

Left hand front of the passenger compartment, attached to the door hinge pillar

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

LH Cooling Fan Diode

In the body harness, between splices S141 and S143 near the RH cooling fan motor

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LH Cooling Fan Motor

Center front of the engine compartment, behind the radiator

Cooling System Component Views

Cooling System Connector End Views

Powertrain Control Module (PCM) (Buick)

Under the right hand side of the instrument panel, near the rear of the instrument panel compartment

Engine Controls Component Views in Engine Controls - 3.8L

Powertrain Control Module Connector End Views

in Engine Controls - 3.8L

Powertrain Control Module (PCM) (Oldsmobile)

Under the right hand side of the instrument panel, near the rear of the instrument panel compartment

Engine Controls Component Views in Engine Controls - 4.0L

Powertrain Control Module Connector End Views

in Engine Controls - 4.0L

RH Cooling Fan Motor

Center front of the engine compartment, behind the radiator

Cooling System Component Views

Cooling System Connector End Views

RH Rear Junction Block

Right hand rear of the passenger compartment, under the rear seat cushion

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

G103

Right hand side of the engine compartment, on the lower rail near the upper engine mount

Power and Grounding Component Views in Wiring Systems

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P107

Right hand rear of the engine compartment, near the base of the strut tower

Harness Routing Views in Wiring Systems

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S104

In the body harness, approx 69.5 cm (27.4 inches) from the engine coolant level switch

Harness Routing Views in Wiring Systems

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S115

In the body harness, approx 32 cm (12.6 inches) from the C105 connector

Harness Routing Views in Wiring Systems

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S116

In the body harness, approx 13.5 cm (5.3 inches) from the P107 pass through grommet

Harness Routing Views in Wiring Systems

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S121

In the body harness, approx 35 cm (13.8 inches) from the G103 ground

Harness Routing Views in Wiring Systems

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S141

In the body harness, approx 34 cm (13.4 inches) from the RH cooling fan motor

Harness Routing Views in Wiring Systems

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S143

In the body harness, approx 30.5 cm (12.0 inches) from the RH cooling fan motor

Harness Routing Views in Wiring systems

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