Headlamp Wash Relay

What is a Headlamp Wash Relay?

The Headlamp Wash Relay is part of the car electrics system. We have 2 associated problem symptoms connected to it.

What problems can be caused by this part?

Rear windscreen wipers not as powerful as usual

The rear window wiper is struggling to move across the screen and keep it clear, it sometimes sticks and doesn't seem to have as much power to move across the screen as it did.

Headlight washers not working

The washer jets that clean the headlights don't seem to be spraying water on to the lights anymore.

We have 4 owner problems that mention the Headlamp Wash Relay