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
Removal Procedure
NOTE:
To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.
- Turn the ignition switch to the OFF position.
- Remove the fuel injector sight shield, 3.8L engine only. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical -3.8L.
- Remove the front fender upper diagonal brace. Refer to Brace Replacement - Front Fender Upper Diagonal in Body Front End.
- Disconnect the accelerator and cruise control cable from the accelerator control cable bracket.
- Disconnect the cruise control module from the left strut tower. It is not necessary to remove the cable from the module. Refer to Cruise Control Module Replacement in Cruise Control. Position the module and cables aside.
- Remove the air cleaner intake duct.
- Disengage the red locking tab (1) from connector lock tab.
- Push down lock tab and then move sliding connector cover (2) to the open position.
- Disconnect the EBCM harness connector.
- Remove any dirt/debris from the assembly.
- Remove the 4 EBCM to BPMV retainers.
Fig 1: Identifying Connector Position Assurance (CPA) Locking Tab And Connector Sliding Cover Lock Tab
IMPORTANT:
Do not pry apart using a tool. Be careful not to damage BPMV surface.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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