The driver's side rear view mirror, that is controlled by the interior door console swithc, moves in only 2 directions. What should be checked?
Just replaced he mirror with a used unit. All else is good except there is no response for up and right movements.
Grab a multimeter and check for continuity through the wiring. If you find that there is no voltage coming from the connector then you know it's a faulty wire or switch. If there is voltage, you know that there's an issue inside your new mirror
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