General Rear wiper relay

[Alan.D]

Hi the rear wiper motor no longer parks as it should, it switches off immediately as soon as the switch is turned off.

Does anyone know if the relay has the timing mechanism and if so where it is I can't find it, (can't find my manual either, must be in the garage somewhere ) I removed all the relays on the fuse box and the wiper still works on the switch? so are there relays anywhere else.

 

[John H]

AFAIK.

I haven't pulled a rear wiper motor to bits (yet), but if it's like the front, the self parking is an integral part of the wiper:
there are a couple of electrical tracks with their own contact wipers, one of which has a gap in the parked position.
The contact wipers move with the screen wiper arm.
Once the wiper has run far enough you can take the power off (from the switch) and the interrupted track gives the power for the motor to cycle back to the parked position.

Three wires to the motor:
earth
power all the time (for the return wipe)
power from wiper switch.

The problem is either the wiper motor, or the "power all the time" missing.

 

[Alan.D]

Excellent Thanks John, I've got a spare rear wiper motor so will try that now and then take the other to bit's later if it turns out to be just that.

Thanks again.

 

[Alan.D]

John.....your the man :worship: :woot:

You were spot on and now works perfect

I'll do some pics on changing the motor over, and then take the other one to pieces later.

Thanks again.

 

[Alan.D]

Just to add the old one was full of water and the main contact must have re-shaped over the years so when a plastic extension designed to break the power contact was in position it wasn't moving the contact to break the power supply if you catch my drift. I bent the contact back into place and now that works properly as well even though full of water? I'll explain later with pics as the description is a bit hazy.