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.
1990 Mitsubishi Montero Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Using Multi-Use Tester
- Turn ignition off.
- Connect power source terminal of multi-use tester to cigarette lighter socket.
- Connect multi-use tester to diagnosis connector. See Fig 1 .
- Turn ignition on.
- Using multi-use tester, read out and record self-diagnosis output.
- Refer to diagnosis chart, and repair the indicated location of malfunction. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
- Erase malfunction code. See CLEARING DIAGNOSTIC TROUBLE CODES .
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.