GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

1st - 2nd Shift Solenoid Valve

Inside the automatic transmission.

Automatic Transmission Electronic Component Views

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2nd - 3rd Shift Solenoid Valve

Inside the automatic transmission.

Automatic Transmission Electronic Component Views

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3rd - 2nd Shift Solenoid Valve

Inside the automatic transmission.

Automatic Transmission Electronic Component Views

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Automatic Transmission

Rear of the vehicle, mounted to the front of the axle.

Engine Controls Component Views in Engine Controls 5.7L

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Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch

Inside the automatic transmission.

Automatic Transmission Electronic Component Views

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Automatic Transmission Fluid Temperature (TFT) Sensor

Inside the automatic transmission.

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Electronic Suspension Control (ESC) Module

Rear compartment, inside the LH storage compartment

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Suspension Controls Connector End Views in Real Time Damping

Evaporative Emission (EVAP) Vent Valve Solenoid

Mounted to the right side rear compartment brace, inside RR wheelhouse panel.

Engine Controls Component Views in Engine Controls 5.7L

Engine Controls Connector End Views in Engine Controls 5.7L

Instrument Cluster

Top LH side of instrument panel, behind the steering wheel

Instrument Cluster and HUD Component Views in Instrument Panel Gauges and Console

Instrument Cluster and HUD Connector End Views in Instrument Panel, Gauges and Console

Instrument Panel Electrical Center

RH footwell, mounted on the toe board, behind the carpet

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Park/Neutral Position (PNP) and Backup Switch

LH side of the transmission

Engine Controls Component Views in Engine Controls 5.7L

Engine Controls Connector End Views in Engine Controls 5.7L

Powertrain Control Module (PCM)

Behind the RF fender, between the wheelhouse and the dash panel, below the battery

Engine Controls Component Views in Engine Controls 5.7L

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Pressure Control Solenoid (PC Sol) Valve

Inside the transmission

Automatic Transmission Electronic Component Views

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Stoplamp Switch

Mounted on the bracket in front of the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Torque Converter Clutch Pulse Width Modulation Solenoid (TCC PWM SOL) Valve

Inside the automatic transmission

Automatic Transmission Electronic Component Views

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Torque Converter Clutch Solenoid (TCC SOL) Valve

Inside the automatic transmission

Automatic Transmission Electronic Component Views

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Underhood Electrical Center

RH side of the engine compartment, between the wheelhouse and the dash panel, front of the battery

Engine Controls Component Views in Engine Controls 5.7L

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C102 (20 cavities)

Instrument panel harness to forward lamp harness, RH side rear of engine compartment

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Inline Harness Connector End Views in Wiring Systems

C140 (10 cavities)

Transmission harness to forward lamp harness, RH side in engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C142 (20 cavities)

Engine harness to transmission harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C144 (20 cavities)

Engine harness to transmission harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C150 (20 cavities)

Forward lamp harness to Engine harness, RH side rear of engine compartment, below the battery

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Inline Harness Connector End Views in Wiring Systems

C402 (10 cavities)

Transmission harness to fuel tank jumper harness.

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Inline Harness Connector End Views in Wiring Systems

P200

Instrument panel harness, RH side of Instrument panel on dash panel

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S120

Engine harness, approximately 15.0 cm (5.9 in) from the main harness in the branch leading to the Powertrain Control Module (PCM) connectors (CKT451)

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S204

Engine harness, approximately 6.5 cm (2.5 in) from the C150 breakout (CKT 817)

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S213

Instrument panel harness, approximately 7.5 cm (2.9 in) right of the brake switch connectors breakout (CKT 339)

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S400

Transmission harness, approximately 6.5 cm (2.5 in) from the C402 breakout (CKT 339)

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SP208 - Splice Pack 208

Instrument panel harness, RH side of Instrument panel, grounded to G104 (CKT 851)

Power and Grounding Component Views in Wiring Systems

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G104

Instrument panel harness, below the battery tray, on the RH frame rail, ground for SP208 (CKT 851)

Power and Grounding Component Views in Wiring Systems

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G106

Engine harness, RH side of the engine, above the starter (CKT 451)

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