GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Engine Coolant Temperature (ECT) Gauge

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Engine Coolant Temperature (ECT) Gauge Sensor

On the upper left side of the engine

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Engine Oil Pressure (EOP) Gauge

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Engine Oil Pressure (EOP) Gauge Sensor

On the right side of the engine block

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Engine Oil Pressure (EOP) Indicator Switch

On the inside left frame rail, in the front of the oil filter

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Fuel Gauge

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Fuel Sender, Left Side Tank

On the outboard of the left frame rail in the fuel tank

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Fuel Sender, Right Side Tank

On the outboard of the right frame rail in the fuel tank

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Hourmeter

Under the left side of the IP, near the data link connector (DLC)

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Indicator Lamps Check Switch

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Instrument Panel Cluster (IPC)

On the left side of the IP

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Instrument Panel Cluster (IPC) C1 (15 Cavities)

On the upper IP harness to the instrument panel cluster (IPC)

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Instrument Panel Cluster (IPC) C2 (9 Cavities)

On the upper IP harness to the instrument panel cluster (IPC)

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Instrument Panel Cluster (IPC) C3 (17 Cavities)

On the upper IP harness to the instrument panel cluster (IPC)

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Instrument Panel Cluster (IPC) C4 (7 Cavities)

On the upper IP harness to the instrument panel cluster (IPC)

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Low Engine Coolant Level Indicator Lamp Diode (D200)

On the lower IP harness, part of diode module 1, plugged into joint connector 1, terminals A1, B1 and C1

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--

Low Engine Coolant Level Indicator Switch

On the left cab bridge, on the bottom of the radiator surge tank

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Park Brake Switch (ABS Air)

In the center of the IP, below the radio

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Park Brake Switch (Hydraulic Brakes)

On the park brake lever bracket

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Speedo Adapter (Vehicle Speed Sensor [VSS] Buffer) (Diesel)

Under the right seat

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Speedometer

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Tachometer

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Vehicle Speed Sensor (VSS) (Automatic Transmission)

On the transmission rear tailshaft housing

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Vehicle Speed Sensor (VSS) (Manual Transmission)

On the transmission rear tailshaft housing

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Vehicle Speed Sensor (VSS) Buffer

Under the right seat

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views

Voltmeter

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

Instrument Panel, Gages, and Console Component Views

Instrument Panel, Gages, and Console Connector End Views