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Multifunctional relay
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Replace a Spare part Wiper relay – a defective one or if the limit of use has been already reached. Find out useful information about Wiper relay
The wiper relay ensures the intermittent operation of wipers. This system works due to the connecting and disconnecting of the corresponding contacts.
6 tips on maintaining and replacing the wiper relay
The wiper relay doesn’t have a defined service life, therefore, it only needs to be replaced when it stops working.
Depending on the car model the wiper relay can be found in either the engine compartment or on the steering column.
Before replacing the wiper relay, check it with a multimeter. Sometimes the malfunction of the part is caused by a faulty understeering switch or another part.
Before you start dismantling the device, remove the negative terminal from the battery.
Depending on the car model repairing works might involve dismantling other parts. For example, in some vehicles you’ll have to remove the seats in the passenger compartment. If you don’t have suitable tools then it is best to visit a repair shop.
When removing the old wiper relay, remembering how the wires were connected is very important so that you do not make a mistake when installing the replacement.
Common wiper relay problems - causes and symptoms
Broken internal winding. Among the possible causes of this problem are the onboard network and a button getting stuck. The latter can happen due to something getting stuck in the button or mechanical damage. If this happens the system doesn’t function in the intermittent mode.
Thermal damage to the contacts that causes breaks in operation. This can happen as a result of the high voltage in the onboard network.
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