The rear window wipers will not turn off on my 1996 Toyota Camry Wagon. Should I replace my rear wiper motor?
It is unlikely that the wiper motor is causing this problem. An electrical motor can only operate when electricity is sent to it, so the problem is more likely in what sends the power to the motor. There are three possible options. The first, and most likely is that the switch has failed and is keeping the circuit closed regardless of where you set it. The second, also quite likely, is that the wiper motor relay has failed and is always sending juice to the motor. The third, and least likely, is that there is a wiring issue, such as a short, that is keeping power supplied to the wiper motor. Start by checking the switch and the relay, and move on from there.
