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 Mitsubishi Lancer LSFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Component Location |
|---|---|
| ABS ECU | On right rear of engine compartment. See Figure . |
| A/C ECU | Behind center of dash, below radio. |
| Auto-Cruise Control ECU | Behind right end of dash. See Figure . |
| Column ECU | On top of steering column. |
| Engine Control Module (M/T) | Behind glove box. See Figure . |
| ETACS ECU | On rear of junction block, behind left end of dash. See Figure . |
| Fan Controller | On fan shroud, at right front of engine compartment. |
| Front ECU | In engine compartment relay box. See Figure . |
| Powertrain Control Module (A/T) | Behind glove box. See Figure . |
| SRS ECU | Behind lower center of dash. See Figure . |
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.