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 Mitsubishi Outlander LS, FWDFACTORY OEM SERVICE PROCEDURE
No Communication With Engine Control Module/Powertrain Control Module: Testing
- Turn the ignition switch to LOCK position. Locate PCM. See POWERTRAIN CONTROL MODULE LOCATION under SELF-DIAGNOSTIC SYSTEM. Check PCM connector C-110 for loose, damaged or corroded terminals. See Figure . If faulty connections are found, repair as necessary. If connections are okay, go to next step.
- Check for loose, damaged or corroded terminals in intermediate connectors C-105 and C-02. If problem does not exist, go to next step. If faulty connections are found, repair as necessary. Recheck communication.
- Check for open or short to ground between DLC terminal No. 7 (Orange/Blue wire) and PCM connector C-110 terminal No. 85 (Orange/White wire). See Fig 1 and Figure . If problem does not exist, check power to PCM. See ECM/PCM under COMPUTERIZED ENGINE CONTROLS in SYSTEM & COMPONENT TESTING article. If problem exists, repair Orange/White wire. Recheck communication.
Factory Service Tools
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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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