What happens when you turn off the wiper motor?
When the windshield wiper/washer switch is turned to the OFF position while the wiper motor is somewhere in mid-cycle, the wiper motor module will continue to operate the wiper motor until the wipers reach the park position.
How does a low speed windshield wiper work?
If the wiper switch is moved to the MIST position and held, the windshield wiper motor will operate in the LOW mode until the switch is released. Windshield wiper DELAY operation is a low speed wiper motor function with a variable delay interval between the wiper motor cycles.
How is the delay interval of a windshield wiper controlled?
The DELAY interval is controlled through a series of resistors within the wiper/washer switch. During DELAY wiper operation the wiper switch signal 2 circuit is at the same voltage level used for LOW operation, but the wiper switch signal 1 circuit voltage is reduced through the DELAY resistors.
What happens when the wiper switch is in high position?
When the wiper/washer switch is in the HIGH position the accessory voltage to the wiper/washer switch is closed to the high speed signal circuit. The accessory voltage on the high speed signal circuit causes the wiper motor module to close the wiper motor accessory voltage supply circuit to the wiper motor high speed terminal.
What happens when you turn off your windshield wipers?
If this switch goes bad, then an electric current will go through your windshield wiper system even when it is turned off. If the park switch is the culprit of your problem, then your wipers could even continue to run when your vehicle is turned off, pulling power from your battery.
What happens if there is no power to the wiper?
If there is power, the motor is bad. If there is no power, although the motor could “still” be bad, you first want to trace the circuit back to the power source to figure out where the break is. Once the circuit is fixed, of course if the motor still doesn’t work, it’s condemned and replaced.
Where is the relay on a windshield wiper?
Faulty Relay: Every windshield wiper system has an internal electric switch mechanism called a relay. Automotive relays are small plastic boxes that plug into a particular location in a covered panel underneath the hood near a handful of other relays.
What are the codes for my windshield wipers?
The codes P0300 and P0301 are coming up for a misfire on cylinder number 1. Check the cylinder for spark, fuel, and air. Check the spark plug and make sure that it is firing. The spark plug wire could have…