GM Service Manual Online
For 1990-2009 cars only

Automatic Transmission Components Diesel

Name

Location

Locator View

Connector End View

Barometric Pressure Sensor

On top of the intake manifold, at the rear LH side near the glowplug controller

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Data Link Connector (DLC)

On the lower LH side of the passenger compartment bulkhead on the side of the relay bracket

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Engine Speed Sensor

At the rear of the intake manifold, near the fuel/water separator (filter)

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Hazard Lamps Flasher

At the inner LH side of the steering column support bracket

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Instrument Cluster

Body builder installed

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Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

IP Fuse Block (P42)

Located by the body builder

Electrical Center Identification Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

IP Fuse Block (P32)

Located by the body builder

Electrical Center Identification Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (P42)

At the LH side of the drivers island on the relay bracket

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Powertrain Control Module (P32)

On the LH side of the drivers island

Engine Controls Component Views in Engine Controls

Powertrain Control Module Connector End Views in Engine Controls

Stoplamps Switch

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Throttle Position Sensor

At the RH front of the intake manifold

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Torque Converter Clutch (TCC) and Stoplamps Switch (P42)

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Torque Converter Clutch (TCC) and Stoplamps Switch (P32)

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Transmission Control Module

At the LH side of the drivers island on the relay bracket

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Transmission Input Speed Sensor

On the LH side of the transmission near the middle

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

C200 (P42)

Engine harness to the IP harness, in the bulkhead near P100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (P32)

At the top front of the steering column support near the park brake pull button switch

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C301

Engine harness to the transmission, on the LH side of the transmission near the middle

Automatic Transmission Electronic Component Views

Automatic Transmission Inline Harness Connector End View

G108

At the rear of the LH cylinder head

Power and Grounding Component Views in Wiring Systems

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P100

LH bulkhead left of the steering column

Harness Routing Views in Wiring Systems

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S102

In the engine harness, approximately 32 cm (13 in) from the breakout for the battery junction block toward the A/C compressor connectors

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S108

In the engine harness, approximately 22 cm (9 in) from P100

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S111

In the engine harness, approximately 10 cm (4 in) from the starter motor breakout toward C200

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S119 (P42)

In the engine harness, approximately 6 cm (2 in) from the glowplug controller breakout toward the breakout for the generator harness connector C102

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S119 (P32)

In the engine harness, approximately 13 cm (5 in) from the breakout for G104, toward the breakout for the generator connector

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S129

In the engine harness, approximately 17 cm (6 in) from the breakout for C101 toward the breakout for the starter motor

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S133

In the engine harness, approximately 17 cm (7 in) from the breakout for C200 and the battery junction block

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S143

In the engine harness, approximately 17 cm (7 in) from P100

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S170

In the engine harness, approximately 22 cm (9 in) from the fuel pump relay connector

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S200 (P42)

In the IP side of the engine harness, approximately 16 cm (6 in) from P100 toward the ignition switch

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S200 (P32)

In the IP side of the engine harness, approximately 8 cm (3 in) from the breakout for the turn signal switch, toward P100

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S224

In the IP side of the engine harness, approximately 16 cm (6 in) from P100, toward the PCM

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S229

In the IP side of the engine harness, approximately 3 cm (1 in) from the breakout for the hazard lamps flasher and the wiper switch connector, toward the data link connector

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S233

In the IP side of the engine harness, approximately 31 cm (12 in) from P100 toward the ignition switch

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Automatic Transmission Components Gasoline

Name

Location

Locator View

Connector End View

Data Link Connector (DLC)

On the lower LH side of the passenger compartment bulkhead on the side of the relay bracket

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Hazard Lamps Flasher

At the inner LH side of the steering column support bracket

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Instrument Cluster

Body builder installed

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Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

IP Fuse Block (P42)

Located by the body builder

Electrical Center Identification Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

IP Fuse Block (P32)

Located by the body builder

Electrical Center Identification Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Stoplamps Switch

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Torque Converter Clutch (TCC) and Stoplamps Switch (P42)

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Torque Converter Clutch (TCC) and Stoplamps Switch (P32)

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Transmission Input Speed Sensor

On the LH side of the transmission near the middle

Engine Controls Component Views in Engine Controls

Engine Controls Connector End Views in Engine Controls

Vehicle Control Module (P42)

Mounted to the top of the radiator support

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

Vehicle Control Module (P32)

Mounted to the top of the radiator support

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

C200 (P42)

Engine harness to the IP harness, in the bulkhead near P100

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200 (P32)

At the top front of the steering column support near the park brake pull button switch

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C301

Engine harness to the transmission, on the LH side of the transmission near the middle

Automatic Transmission Electronic Component Views

Automatic Transmission Inline Harness Connector End View

P100

Main wiring pass through at the bulkhead

Harness Routing Views in Wiring Systems

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S102

In the engine harness, 45 cm (18 in) from P100 toward the branch for the mass air flow sensor

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S116

In the engine harness, 32 cm (12 in) from the breakout for C100 and C207, going away from P100

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S118

In the engine harness, 21 cm (8 in) from the breakout for the A/C compressor clutch and the EGR valve, toward the breakout for the cruise control connector

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S133

In the engine harness, 8 cm (3 in) from the breakout for the VCM and C200, toward the VCM

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S135 (4.3L)

In the engine harness, 23 cm (9 in) from the breakout for the ECT and the A/C compressor clutch toward C200

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S135 (5.7L)

In the engine harness, 8 cm (3 in) from the breakout for the ECT and the A/C compressor clutch toward C200

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S200

In the IP side of the engine harness, 19 cm (8 in) from P100 toward the ignition switch

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