Three Usual Issues of Problematic Toyota Corona Mirrors
The side mirrors of your Toyota Corona help you recognize pedestrians, vehicles, and objects on the sides and behind your car. Since the side mirrors are mounted on the outside of the car, they are prone to damage from just about anything that could hit them. If you already notice the side mirrors of your car are starting to show signs of malfunction, then you have to perform troubleshooting as soon as possible. Here's a list of some of the common problems you might encounter:
Noise coming from the side-mirror's housing
If you begin to notice that the side mirror of your Toyota Corona is making an irritating sound, then the problem may come from a faulty motor inside the side mirror's housing. Try to move the housing inward and outward and observe if the noise stops. The wiring could just be loose or misaligned. However, if the noise is still persistent, then you should remove the side-mirror assembly because the motor along with the other parts needs to be checked and possibly replaced.
Side mirror fails to adjust properly
There are two possible culprits that can cause this problem to your car's side mirrors. The first one is a faulty adjustment switch. Basically, a good switch lets you adjust the side mirror up and down and left and right. A faulty switch, however, will limit or prevent any of these movements. Another culprit can be a damaged motor or wiring. What you need to do is to test the voltage of the motor and the wiring using a voltmeter. If there is no power or the reading fluctuates, then you have to considering replacing them.
Side mirror fogging up
Poor road visibility from a foggy side mirror can be very dangerous, that's why you have to check the side mirror immediately when this happens. If you have an auto-dimming mirror that's becoming unclear and wiping it doesn't help, then the cause of this problem can be a leaking liquid crystal between the glass and the reflector lens. This will turn the mirror into a bronze or gold color. However, if you have a stock mirror that's fogging up, then the problem can already be corrosion from the mirror's chrome plating. The best solution when this happens is to replace the damaged mirror.