touring rear wiper comes on by itself BRIANMOOORE

[gazza]

used the wiper today switched it of and after a few minutes saw it wiping checked the switch it was off, comes on does about 4 wipes the stops. when i tried to wash the window the water squirts but the wiper dont move ....when i use the wipe function it works as normal what could it be

[gazza]

no one had this experience ....it even comes on with the switch removed .....any idea where too look

[gazza]

ok its on all the time now ,what relay controls it ....could it be a relay or wiring fault

[pony2]

Mine does strange things as well, it always returns to a different position. Must be some help out there for you somewhere?

[elvis]

relay is above the washer bottle in the boot tucked up on the left hand side mine went bonkers as well ......changed it and it did the trick

[Brianmoooore]

Looks like the problem's solved before I got here!

[gazza]

thanks lads ill get another relay and see what happens

[tourer-dan]

All sounds too common!!!! I'm on my 3rd relay.........It seems to eat them up.

[Brianmoooore]

All sounds too common!!!! I'm on my 3rd relay.........It seems to eat them up.

I've never known one fail! You don't have a water leak onto it, do you?

[tourer-dan]

No it's all nice and dry. Wasn't working at all when I bought the car, replaced, lasted about 6 months then that 'stuck on'. Current one's been in over a year- no probs touch wood. Dealer wanted around £60 IIRC, got a second hand one for under a tenner. I thought it was common!

[Brianmoooore]

It's probably a simple repair, like build up on a relay contact, or a simple cracked solder joint, if you open it up!

[gazza]

right got another relay (one for n/s of boot)....no good wiper still comes on on its own is there another relay in the fuse box that could be the cause

[Brianmoooore]

Are you sure you've not replaced the lamp filament check module by mistake?
There's a microswitch mounted inside the gearbox cover of the wiper motor that could conceivably cause something like this, but it's unlikely.

[gazza]

the shell was a 318 so no check control

[Brianmoooore]

There is another relay associated with the rear wash wipe; K9, in the fusebox, but it's of no relevance to this problem, since all it does is apply power to the circuit when the ignition is switched on.
the fault could be caused by corrosion in the switch on the dash, but you say it still happens with the switch removed, so that just leaves the microswitch in the motor, or you've fitted another dud 'relay'.

[gazza]

ok cheers ill try and obtain another relay and see what happens i took the car for a run and put my hand on the relays too see if any where hot ...2 were so i changed them but its still the same ....whether relevant this seems to not happen on initial starting but as the cars is running for a while it starts to happen untill it is almost on all the time ...i have now disconnected the wiring to stop it
is there any permanent live to the motor or anything that could be shorting out ie near the hinge where it moves as the hatch is opened

[Brianmoooore]

No permanent live to the motor - it's fed a switched live on the black/yellow from the 'relay'. The black/red wire is the one from the park microswitch, which connects it to earth. TBH, I don't know if it has to be earthed for the motor to run or for the motor to park.

[Gibson]

TBH, I don't know if it......

My god I never expect to hear those words, the very fabric of the zone is going to start tearing an interdimensional rift into space and time...

[Brianmoooore]

OK, in order to save the universe, I've just checked on a spare motor!! The micro switch is open circuit in the parked position.

[Meister_Munch]

I have the same problem. Wiper will only stop if I remove the Relay or Fuse.

The switch is fine. The Relay looks pristine and and dry.

The microswitch route, would that mean replacing the whole motor?

[Brianmoooore]

I have the same problem. Wiper will only stop if I remove the Relay or Fuse.

The switch is fine. The Relay looks pristine and and dry.

The microswitch route, would that mean replacing the whole motor?

It's a standard miniature microswitch, and I managed to replace one once.
'Relay' is still your most likely suspect, though.

[Dave_M3]

There's been one or two things Brian has been caught on lately, lol.
Like those areials that go up and down depending on you having the CD or tuner on


I would have thought a likely problem for this would have been the switch being stuck for turning on the wiper when in reverse but as you said, unlikely...

[Meister_Munch]

I have the same problem. Wiper will only stop if I remove the Relay or Fuse.

The switch is fine. The Relay looks pristine and and dry.

The microswitch route, would that mean replacing the whole motor?

It's a standard miniature microswitch, and I managed to replace one once.
'Relay' is still your most likely suspect, though.

Where does one find this switch and is it a replaceable part?

[Brianmoooore]

Switch I used was 'in stock' , but www.cpc.co.uk will probably have a suitable one. It's not a part that the manufacturers intended to be replaced.
It was a while ago that I did it, and can't remember the full details.
Complete motors come up on ebay fairly often. I bought one for £0.99 a few weeks ago!

[Brianmoooore]

Just realised you meant 'where can I find the switch on the motor'!
On the cover for the large gearwheel. The one with two wires and exposed solder joints. Disconnect the brown wire to test it. Motor should work normally, but not park.

[gaszman]

ive had a simuler prob with the rear wash wipe just doesnt do anything wipes ok just doesnt spray shit on the screen or wipe strange worked once not no more