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Author Topic: REAR WIPER NOT WORKING  (Read 22440 times)

Offline PM30S

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REAR WIPER NOT WORKING
« on: September 15, 2015, 01:53:33 pm »
Hi
I bought a eddy with a rear wiper removed.
I sourced a wiper motor and connected it all up.
Since fitment I have never been able to use the rear wiper on its own.
It will work when I spray the front screen with washer fluid and moves about 4 wipes.
However if I push the wiper arm fowwards to enable the rear wipe nothing happens.
I'm getting a tad sick of it. Does anyone know if the rear wiper has its own relay and fuse.
I can't get any washer fluid out on the rear screen either.
Many thanks for the help.

Offline john87

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Re: REAR WIPER NOT WORKING
« Reply #1 on: September 16, 2015, 09:59:54 am »
Hi,

The rear wiper may have been deactivated/ coded out using Vag-com by the previous owner. Would be worth checking this if you have access to the equipment or if someone local to you has.
VCDS Hex-USB +CAN (Central Scotland)

Offline hlcst

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Re: REAR WIPER NOT WORKING
« Reply #2 on: September 16, 2015, 10:13:13 am »
When I removed my wiper I also pulled the fuse but cant remember which one it is, you will find it in the owners manual.

Offline PM30S

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Re: REAR WIPER NOT WORKING
« Reply #3 on: September 16, 2015, 11:19:56 am »
Think I'm missing the relay I've been told it's below the headlight switch.
Does it have a number?

Offline xjay1337

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Re: REAR WIPER NOT WORKING
« Reply #4 on: September 16, 2015, 12:44:42 pm »
Check the wiring on the left hand side of the boot hatch. Common issue .

Offline Pashka

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Re: REAR WIPER NOT WORKING
« Reply #5 on: September 16, 2015, 02:07:38 pm »
Fuse, relay or wiring. Check these.
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Offline PM30S

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Re: REAR WIPER NOT WORKING
« Reply #6 on: September 16, 2015, 08:43:49 pm »
Fuse, relay or wiring. Check these.
I would but am unsure where the relay is.
Does anyone have a picture of it???
Thanks 

Offline Scottymon

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Re: REAR WIPER NOT WORKING
« Reply #7 on: September 16, 2015, 09:31:22 pm »
When mine did this, it turned out to be the motor, not too hard to change, just go easy with the plastic trim - it needs an odd mix of being delicate and forceful.
Defo. rule out the other methods first though.

Offline dale.edwards

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Re: REAR WIPER NOT WORKING
« Reply #8 on: October 18, 2015, 07:38:24 pm »
Check the four pin connector that plugs into the motor with a multimeter.
There will be three white wires and one brown. Before testing you need to fool the car into thinking the boot is closed or it will not work. Do this by clicking the boot lock inwards twice, your dash screen will tell you if it thinks the boot is open.
The wires are numbered at the connector and you should have the following readings with the wiper switch off:
1- White wire - 12v
2 - White wire - 12v
3 - White wire - 12v
4 - Brown wire - Ground

Then when the switch is on:
1 - 12v
2 - ground
3 - ground
4 - ground

If you are not getting the correct reading on wire 1 then this will be controlled by a fuse in the board next to the steering wheel. It could also be a broken cable.

Wires 2 and 3 are controlled by the two relays. These are located under the steering wheel, accessed by pulling out the folding cubby hole. From memory they have the number 404 on them. They are on top of each other at the bottom right of the relay board.

Wire 4 is a straight forward ground cable.

If your problem is a broken cable it is highly likely to have broken under the rubber conduit as you look at the tailgate from the rear of the car on the left.

Another tip I can give you is that the same relays that control the rear motor also control the windscreen wash motor, if this is working it is not your relays that are causing the problem.

Offline pudding

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Re: REAR WIPER NOT WORKING
« Reply #9 on: October 20, 2015, 11:46:09 am »
Good info /\

When my rear wiper stopped working, it turned out to be the tailgate wasn't quite shut enough but not open enough to trigger the boot open indicator on the MFD. Giving it a good slam got it working again.  Maybe a dodgy switch or something?


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D