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.
2002 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Body Control Module | Behind left side of dash, above parking brake lever. |
| Cruise Control Module | On left strut tower. See Figure. |
| Driver Information Display Control Module | In front center of roof. |
| Electronic Brake Control Module (EBCM) | In left rear of engine compartment, on ABS hydraulic modulator. See Figure. |
| Coolant Level Module | On right side of radiator. |
| Heated Seat Control Module | Below respective seat. |
| HVAC Control Module | Center of instrument panel. |
| Ignition Control Module (ICM) (3.4L VIN E) | On top right side of engine. |
| Ignition Control Module (ICM) (3.8L VIN K) | On left front of engine. See Figure. |
| Inflatable Restraint I/P Module | On right side of dash, above glove box. |
| Inflatable Restraint Sensing & Diagnostic Module (SDM) | Below passenger's seat. |
| Inflatable Restraint Side Impact Module (Left) | On left side of driver's seat back. |
| Inflatable Restraint Side Impact Module (Right) | On right side of passenger's seat back. |
| Inflatable Restraint Steering Wheel Module | In center of steering wheel. |
| OnStar Module | In luggage compartment, on left rear wheelwell. |
| Powertrain Control Module | In air cleaner box. |
| Radio Antenna Module | On upper portion of left "C" pillar. |
| Remote Control Door Lock Receiver (RCDLR) | On upper center of dash. |
| Sun Roof Module | In roof, near windshield. |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.