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 ES, AutomaticFACTORY OEM SERVICE PROCEDURE
Using Scan Tool
- Refer to scan tool manufacturer's operation manual for instructions. Before entering on-board diagnostics, see SERVICE PRECAUTIONS . Locate Data Link Connector (DLC) under instrument panel, near steering column.
- Turn ignition switch to LOCK position. Connect scan tool to DLC. Turn ignition on. Read and record scan tool self-diagnostic output. Proceed to DIAGNOSTIC TROUBLE CODE DEFINITIONS . If scan tool will not communicate with ECM/PCM, diagnose communication concern. See SCAN TOOL WILL NOT COMMUNICATE . Turn ignition switch to LOCK position before disconnecting scan tool.
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.