Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2003 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Body Control System Component Views

Fig 1: Behind Left Side Of Instrument Panel Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Body Control Module (BCM)
2	Body Control Module Connector C3
3	Body Control Module Connector C2
4	Body Control Module Connector C1
5	Headlamp Switch Connector
6	P101
7	Remote Control Door Lock Receiver (RCDLR) Connector

Factory Service Tools

Use the Manual With the Right Hardware

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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