GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Automatic Transmission Controller

Located under the center console

Standard Wheel/Column Component Views

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Body Bussed Electrical Center (BBEC)

To the left of the dash, to the right of the IP Fuse Block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Brake Transmission Shift Interlock (BTSI) Solenoid, (w/ Floor Shift)

Part of the automatic transmission controller (w/ floor shift A/T)

Standard Wheel/Column Component Views

Standard Wheel/Column Connector End Views

IP Fuse Block

To the left of the IP, near the left front door jamb switch

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Park Lock Solenoid

Part of the steering column at the ignition switch

Standard Wheel/Column Component Views

Standard Wheel/Column Connector End Views

Park/Neutral Position (PNP) And Backup Lamp Switch, w/ A/T Connector C1 (7 Cavities)

To the left of the transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Inline Harness Connector End View in Automatic Transmission

Park/Neutral Position (PNP) And Backup Lamp Switch, w/ A/T Connector C2 (4 Cavities)

To the left of the transmission

Automatic Transmission Electronic Component Views in Automatic Transmission

Automatic Transmission Inline Harness Connector End View in Automatic Transmission

Park Switch (w/ Floor Shift A/T)

Part of the automatic transmission controller (w/ floor shift A/T)

Automatic Transmission Electronic Component Views in Automatic Transmission

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TCC/Stop Lamp Switch

Mounted on the brake pedal

Lighting Systems Component Views in Hydraulic Brakes

Lighting Systems Connector End Views in Hydraulic Brakes

Underhood Bussed Electrical Center (UBEC)

On the top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

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Underhood Bussed Electrical Center (UBEC) Connector C2 (68 Cavities)

Below the UBEC

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

C101 (10 Cavities) (2.2 L Engine)

At the 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

C203 (116 Cavities)

At the body harness to IP harness, to the right of the IP

Inline Harness Connector End Views in Wiring Systems

Harness Routing Views in Wiring Systems

C204 (6 Cavities) (Utility)

At the body harness to floor shifter harness, in the IP, in front of the automatic transmission controller

Inline Harness Connector End Views in Wiring Systems

Harness Routing Views in Wiring Systems

C211 (48 Cavities)

At the body harness to steering column harness, in front of the IP, near the steering column

Inline Harness Connector End Views in Wiring Systems

Harness Routing Views in Wiring Systems

G200

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

Harness Routing Views in Wiring Systems

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G201

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

Harness Routing Views in Wiring Systems

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G207

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

Harness Routing Views in Wiring Systems

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P100

At the IP bulkhead pass-through, to the left rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

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S113

(CKT 1020) At the body harness, between the blower motor breakout and the blower motor relay breakout, 13 cm (5.11 in) from the breakout to the blower motor

Harness Routing Views in Wiring Systems

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S200

(CKT 1850) At the body harness, 5 cm (2 in) to the right of the C211 breakout

Harness Routing Views in Wiring Systems

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S335 (Utility w/ Floor Shift A/T)

(CKT 1850) At the floor shift extension harness, between the in-line connector and the lamp breakout, 7 cm (2.75 in) from the lamp breakout

Harness Routing Views in Wiring Systems

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Splice Pack SP202

(CKT 379, CKT 1850) Strapped to the body harness, at the left center of the IP

Harness Routing Views in Wiring Systems

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Splice Pack SP204

(CKT 584, CKT 1414, CKT 1415) Strapped to the body harness, in the center front of the IP, to the left of SP200

Harness Routing Views in Wiring Systems

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