GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

1-2 Shift Solenoid (1-2 SS) Valve

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

2-3 Shift Solenoid (2-3 SS) Valve

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

3-2 Shift Solenoid (3-2 SS) Valve

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

Automatic Transmission Controller

Located in the center floor console

Shift Lock Control Component Views

Shift Lock Control Connector End Views

Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

Clutch Pedal Position (CPP) Switch

On the clutch pedal support bracket

Engine Electrical Component Views in Engine Electrical

Engine Electrical Connector End Views in Engine Electrical

IP Fuse Block

RH of the IP, near the side door jamb switch

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Park/Neutral Position and Backup Lamp Switch, Connector C1 (7 Cavities)

LH of the transmission

Shift Lock Control Component Views

Shift Lock Control Connector End Views

Pressure Control Solenoid (PC SOL) Valve

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

Stoplamp Switch

Mounted on the brake pedal support bracket

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Torque Convertor Clutch Solenoid (TCC SOL) Valve

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

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

In the Automatic Transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

Transmission Fluid Temperature (TFT) Sensor

Part of automatic transmission fluid pressure (TFP) manual valve position switch. Internal to transmission

Transmission Component Location

Automatic Transmission Internal Connector End Views

Underhood Fuse Block

On the top of the right inner fenderwell

Power and Grounding Component Views in Wiring Systems

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Underhood Fuse Block Connector C1 (68 Cavities) (Body)

Below the Underhood Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C2 (68 Cavities) (Engine)

Below the Underhood Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM)

LH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

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Vehicle Control Module (VCM) Connector C1 Blue (32 Cavities)

LH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

Vehicle Control Module (VCM) Connector C2 Red (32 Cavities)

LH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

Vehicle Control Module (VCM) Connector C3 Clear (32 Cavities)

LH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

Vehicle Control Module (VCM) Connector C4 (24 Cavities)

LH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

VCM Connector End Views in Engine Controls - 4.3L

Vehicle Speed Sensor (VSS)

Top LH rear of the transfer case

Engine Controls Component Views in Engine Controls - 4.3L

Engine Controls Connector End Views in Engine Controls - 4.3L

C101 (8 Cavities)

Engine harness to body harness, to the right of the engine compartment, near the VCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C175 (13 Cavities)

Engine harness to A/T connector, on the right rear of the A/T

Harness Routing Views in Wiring Systems

Automatic Transmission Inline Harness Connector End View

C203 (116 Cavities)

Body harness to IP harness, to the left of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G104

(CKT 450) At the engine harness, to the left rear of the cylinder head

Harness Routing Views in Wiring Systems

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G200

(CKT 1850) Body harness, to the left front of the IP, above P100

Harness Routing Views in Wiring Systems

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G201

(CKT 1850) Body harness, to the left front of the IP, above P100

Harness Routing Views in Wiring Systems

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P100

At the right rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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S102

(CKT 470) In the engine harness between the breakouts for the electronic ignition control module and the fuel injector connector, 5 cm (2 in) from the fuel injector connector breakout

Harness Routing Views in Wiring Systems

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S113

(CKT 1020) In the forward lamp harness between the breakouts to the power radio antenna connector and the park lamp switch connector, 19.5 cm (7.8 in) from the power radio antenna connector breakout

Harness Routing Views in Wiring Systems

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S138

(CKT 420) In the body harness between the breakouts for the power radio antenna connector and the park lamp switch relay, 6.5 cm (2.6 in) from the breakout to the power radio antenna connector

Harness Routing Views in Wiring Systems

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S140

(CKT 450, CKT 514) In the engine harness between the breakouts for the transfer case encoder motor connectors and the RH rear VSS, 10 cm (4 in) from the transfer case connector breakout

Harness Routing Views in Wiring Systems

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S200

(CKT 584) Body harness, between the breakouts to the automatic transmission indicator lamp connector and the rear washer hose, 10 cm (4 in) from the rear washer hose breakout

Harness Routing Views in Wiring Systems

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S203

(CKT 241) In the body harness, 39 cm (15.6 in) from the BCM connector breakout toward C211

Harness Routing Views in Wiring Systems

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S209

(CKT 1850) Body Harness, 6.5 cm (2.6 in) from the BCM connector breakout toward C211

Harness Routing Views in Wiring Systems

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S223

(CKT 300) At the IP harness, near the IP fuse block, in the breakout, 8 cm (3.2 in) from C217

Harness Routing Views in Wiring Systems

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