The turn signal switch is responsible for controlling the flow of electricity to the turn signals, tail lights, and brake lights. If the turn signal switch is faulty, it can prevent the rear passenger turn signal from working while allowing the other lights and signals to function properly.
Here are some things to check:
1. Check the turn signal bulb: Make sure that the rear passenger turn signal bulb is not burnt out. If it is, replace the bulb and see if that solves the problem.
2. Check the turn signal socket: Make sure that the turn signal socket is not damaged or corroded. If it is, clean the socket and see if that solves the problem.
3. Check the turn signal switch: The turn signal switch is located on the steering column. Remove the steering wheel cover and locate the switch. Check for any damage or corrosion. If the switch is damaged, replace it.
If you are uncomfortable performing any of these checks yourself, you can take your car to a qualified mechanic.
