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

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Automatic Transmission Internal Connector End Views in Automatic Transmission

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

In the automatic transmission

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Automatic Transmission Internal Connector End Views in Automatic Transmission

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

In the automatic transmission

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Automatic Transmission Internal Connector End Views in Automatic Transmission

Automatic Transmission Controller (Utility w/Floor Shift)

Located in center floor console

Tilt Wheel/Column Component Views in Steering Wheel and Column - Tilt

Tilt Wheel/Column Connector End Views in Steering Wheel and Column - Tilt

Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch

In the Automatic Transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Inline Harness Connector End View in Automatic Transmission

Automatic Transmission Indicator lamp (Utility w/Floor Shift)

In the Floor Shift harness, center floor console

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Automatic Transmission Preference Switch (Utility w/Floor Shift)

In the Floor Shift harness, center floor console

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Inline Harness Connector End View in Automatic Transmission

Automatic Transmission Preference Switch (w/Column Shift)

In the steering column

Automatic Transmission Electronic Component Views in Automatic Transmission

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Body Relay Block

LH of the dash, right of the IP Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

IP Fuse Block

LH of the IP, near the door jamb switch, LF

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (PCM) Connector C1 (2.2L Engine)

On the right side of the engine compartment

Engine Controls Component Views in Engine Controls - 2.2L

Powertrain Control Module Connector End Views in Engine Controls - 2.2L

Powertrain Control Module (PCM) Connector C2 (2.2L Engine)

On the right side of the engine compartment

Engine Controls Component Views in Engine Controls - 2.2L

Powertrain Control Module Connector End Views in Engine Controls - 2.2L

Pressure Control Solenoid (PC SOL) Valve

In the automatic transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Internal Connector End Views in Automatic Transmission

TCC/Stop Lamp Switch

Mounted on 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

In the automatic transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Internal Connector End Views in Automatic Transmission

Torque Converter Clutch Solenoid (TCC SOL) Valve

In the automatic transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Internal Connector End Views in Automatic Transmission

Transfer Case Shift Control Module Connector C1 (32 Cavities) (Bravada)

Behind RH Front kick panel, the lower connector

Transfer Case Control Component Views in Transfer Case

Transfer Case Control Connector End Views in Transfer Case

Transfer Case Shift Control Module Connector C2 (4 Cavities) (Bravada)

Behind RH Front kick panel, the upper connector

Transfer Case Control Component Views in Transfer Case

Transfer Case Control Connector End Views in Transfer Case

Transmission Fluid Temperature (TFT) Sensor

Part of the Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch

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Vehicle Control Module (VCM) (4.3L Engine)

RH of the engine compartment

Engine Controls Component Views in Engine Controls - 4.3L

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Vehicle Control Module (VCM) (4.3L Engine) Connector C1 Blue (32 Cavities)

RH 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) (4.3L Engine) Connector C2 Red (32 Cavities)

RH 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) (4.3L Engine) Connector C3 Clear (32 Cavities)

RH 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) (4.3L Engine) Connector C4 (24 Cavities)

RH 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) (2.2L Engine w/ A/T)

RH rear of the A/T

Engine Controls Component Views in Engine Controls - 2.2L

Engine Controls Connector End Views in Engine Controls - 2.2L

Vehicle Speed Sensor (VSS) (4.3L Engine w/ A/T)

RH rear of the A/T

Automatic Transmission Electronic Component Views in Automatic Transmission

Engine Controls Connector End Views in Engine Controls - 4.3L

Vehicle Speed Sensor (VSS) (4.3L Engine, Bravada)

To RH rear of the auto 4WD transfer case

Automatic Transmission Electronic Component Views in Automatic Transmission

Engine Controls Connector End Views in Engine Controls - 4.3L

C101 (16 Cavities) (2.2L Engine)

Engine harness to body harness, RH of the engine compartment, near the PCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C101 (10 Cavities) (4.3L Engine)

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

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C108 (7 Cavities) (w/ Auto 4WD) (Bravada)

Transfer case extension harness to body harness, LH Rear engine compartment near cowl penetration P100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C108 (16 Cavities) (w/o Auto 4WD) (Except Bravada)

Transfer case extension harness to body harness, LH rear engine compartment near cowl penetration P100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C116 (2 Cavities)

Engine harness to Active Transfer Case harness, near the top RH Rear of the A/T

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 side of the A/T

Harness Routing Views in Wiring Systems

Automatic Transmission Inline Harness Connector End View in Automatic Transmission

C203 (116 Cavities)

Body harness to IP harness, to the RH of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G104 (4.3L Engine)

Engine harness, LH Rear of the cylinder head

Harness Routing Views in Wiring Systems

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G105 (2.2L Engine)

(CKT 450, CKT 451) Engine harness, to the RH rear of the engine block, near the Ignition Control Module

Harness Routing Views in Wiring Systems

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G105 (4.3L Engine)

(CKT 450, CKT 451) Engine harness, LH Rear of the cylinder head

Harness Routing Views in Wiring Systems

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G117

(CKT 850) Body harness, to the LH rear of the engine compartment, near the cruise control module

Harness Routing Views in Wiring Systems

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P100

IP bulkhead pass-through, LH rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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S102 (4.3L Engine)

(CKT 470) Engine harness, 10 cm (3.9 in) before the breakout to CSFI, MAP sensor, and UBEC C2

Harness Routing Views in Wiring Systems

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S113

(CKT 1020) Body harness, between the blower motor breakout and the blower motor relay breakout, 13 cm (5.1 in) from the breakout to the blower motor

Harness Routing Views in Wiring Systems

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S118 (4.3L Engine)

(CKT 850) Body harness, between the breakouts to the blower motor and the blower motor relay

Harness Routing Views in Wiring Systems

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S129 (2.2L Engine)

(CKT 1020) Engine harness, between the A/C refrigerant pressure sensor breakout and the C111 breakout, 20 cm (7.9 in) from the breakout to the refrigerant pressure sensor

Harness Routing Views in Wiring Systems

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S134

(CKT 850) Auto 4WD extension harness, in the breakout to the front VSS, 10 cm (3.9 in) into the breakout

Harness Routing Views in Wiring Systems

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S138

(CKT 420) Body harness, between the breakout to VCM connector C4 and the windshield wiper motor breakout, 32 cm (12.6 in) from the breakout to the motor

Harness Routing Views in Wiring Systems

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S140 (w/ A/T)

(CKT 450) Engine harness, on the engine harness at the A/T, 8 cm (3.1 in) toward the engine from the breakout to the VSS

Harness Routing Views in Wiring Systems

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