How does a windshield wiper motor work on a car?
Windshield Wiper Motor Wiring. The windshield wipers on a vehicle are powered by a switch that connects or disconnects the power to the windshield wiper motor. When the motor wears out and needs to be replaced, connecting the windshield wiper motor wiring to the switch can be confusing.
Where is the wire on a windshield wiper switch?
Crimp a single spade connector onto the end of each of the wiper motor wires. Connect the black wire from the motor to the fourth blade on the wiper switch terminal, which is the ground wire connection. Connect the white, red or green wire from the wiper motor to the second blade on the wiper switch terminal.
How much insulation does a windshield wiper motor need?
Strip 1/4-inch of insulation from both ends of the two wires coming from the windshield wiper motor. Most manufacturers have already cut the insulation 1/4-inch from the end, but left it in place to protect the core during shipping. Pull the insulation tips off by hand, or use electrician’s pliers to strip it off.
What happens when a windshield wiper relay goes bad?
When the relay is faulty, the windshield wipers will only work at the same speed that the last relay signal was sent. In layman’s terms, if you had your windshield wipers on the slow speed the last time they were active, and you turn them on again under a different setting, the relay switch should send that updated information to the module.
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…
Why does my car not have a wiper motor?
This is usually caused by the wiper motor not getting the power that it needs due to a bad relay. In most cases, a professional mechanic will replace the intermittent wiper relay and the controls at the same time to ensure all of the supporting connections work smoothly together.
What happens if the intermittent wiper switch fails?
However, when one part malfunctions, it can cause potential safety concerns. One of the most common parts to fail is the intermittent wiper relay switch. The electronic relays that are installed in today’s cars, trucks and SUV’s have to operate in very hot and grueling conditions or are subject to constant abuse.