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Why does the orange C/D lock light on the dashboard of my 2002 Mitsubishi Pajero keep coming on? It blinks until I pull over and turn the engine off. When I start up again, it goes off.
This light is designed to warn you that you have the centre differential locked. This diff lock should only be used off-road in limited-grip situations and having the lock engaged on the bitumen will soon break expensive driveline parts. You’d also notice if the diff was engaged as the car would feel very odd to drive with lots of clunks and groans and no desire to be steered normally.
What’s more likely is that the light itself or the sensor that triggers it has a short-circuit that is feeding the wrong information to the body computer which then lights up the warning. By shutting the engine down and restarting it, you’re effectively rebooting the body computer and things go back to normal for a while. An auto electrician would be our first stop.
If by some chance the light is illuminating because the diff lock is, indeed, attempting to chime in, you have a more serious problem as the driveline might well suffer huge damage if the lock managed to actually engage on the highway.
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