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.
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HOMESERVICE MANUALSMITSUBISHI2001MONTERO XLSREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESMAZDAIMMOBILIZER SYSTEM (626)REPROGRAM ERROR RECOVERY
2001 Mitsubishi Montero XLS
Reprogram Error Recovery
2001 Mitsubishi Montero XLSSECTION Reprogram Error Recovery
- Using 1st key, start engine. After SECURITY light illuminates for 1-2 seconds, turn 1st key to LOCK position. Using 1st key, turn ignition to ON position, then LOCK position 5 times.
- Using 1st key, turn ignition to ON position. SECURITY light should illuminate. Turn 1st key to LOCK position and remove key. SECURITY light should go out.
- Using 2nd key, start engine. SECURITY light should illuminate for 1-2 seconds and engine should continue to run. Turn 2nd key to LOCK position and remove key.
- Repeat step 3 with 1st key. Repeat step 3 with 3rd key. Repeat step 3 with each new key, up to 8 keys total. Wait 30 seconds, program will quit automatically. After reprogramming is complete, clear DTCs with NGS tester.
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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.