XC70 back wiper not working

hoggyf · Apr 9th, 2012, 20:24

Hi

as the title says, fuse is fine and I can here the realy ticking on intermittant but I can only get 12v on the permanent supply at the motor, from what I can guess there is a permanent live, a switched live and earth?? is this correct?
Anybody got any know faults on wiring or can I rig up another 12v supply to the motor to test it?

reggit · Apr 9th, 2012, 22:01

I only know this as my dad had trouble with his that was fixed under warranty - they said the wiring is weak on the XC70 where the look goes from the car to the tailgate, it bends and eventually breaks the cables, worth a look for damaged cabling.

Sorry it's a bit vague, but it's all I know.

hoggyf · Apr 10th, 2012, 22:08

I thought I'd heard of this before, anyone explain why theres a permanent and switched live?? and which is the switched live and earth so I can put a 12v supply to it to check the motor??

ShadeTek · Apr 11th, 2012, 09:11

It's very easy to remove the rear panel on the tailgate. Four screws and some poppers and it's off. Check with your meter from chassis to the plug connections to see if there's a permanent +12VDC.

hoggyf · Apr 12th, 2012, 21:19

I've allready done that and have a 12v permanent supply but no "switched" supply as far as i can tell, what i want to do is put a "switched" supply direct from the battery to that connection to test the motor to prove that its a wiring fault. Only problem is I don't know which connection is the switched live, I also don't understand why there it needs a permanent live to the motor????

ShadeTek · Apr 13th, 2012, 08:58

Quote:

Originally Posted by hoggyf

I also don't understand why there it needs a permanent live to the motor????

There's a permanent live there so as when you switch the wipers off, there is power for the motor to auto park, otherwise the blades would stop in the middle of the screen and be a hazard.

How many connections are there on the plug?

Apr 9th, 2012, 20:24	#1
hoggyf Junior Member Last Online: Apr 29th, 2012 11:47 Join Date: Apr 2011 Location: Penrith	XC70 back wiper not working Hi as the title says, fuse is fine and I can here the realy ticking on intermittant but I can only get 12v on the permanent supply at the motor, from what I can guess there is a permanent live, a switched live and earth?? is this correct? Anybody got any know faults on wiring or can I rig up another 12v supply to the motor to test it?

Apr 11th, 2012, 09:11	#4
ShadeTek Premier Member Last Online: Jun 5th, 2024 17:42 Join Date: Dec 2002 Location: Renfrewshire View Photos By: ShadeTek	It's very easy to remove the rear panel on the tailgate. Four screws and some poppers and it's off. Check with your meter from chassis to the plug connections to see if there's a permanent +12VDC. __________________ Tek-Emo Villis Emo Bis V70 SE NAV 1.6 D2 2015MY POWERSHIFT, D4162T, 93000miles, RED. /VOL FCR/PEPER OBD2/Acron 9135 OBD2/L.E.D Flasher/VDASH/ANCEL BA301/Topdon Top Scan

Apr 9th, 2012, 22:01	#2
reggit Premier Member Last Online: Today 13:03 Join Date: Feb 2012 Location: Preston	I only know this as my dad had trouble with his that was fixed under warranty - they said the wiring is weak on the XC70 where the look goes from the car to the tailgate, it bends and eventually breaks the cables, worth a look for damaged cabling. Sorry it's a bit vague, but it's all I know.

Apr 10th, 2012, 22:08	#3
hoggyf Junior Member Last Online: Apr 29th, 2012 11:47 Join Date: Apr 2011 Location: Penrith	I thought I'd heard of this before, anyone explain why theres a permanent and switched live?? and which is the switched live and earth so I can put a 12v supply to it to check the motor??

Apr 12th, 2012, 21:19	#5
hoggyf Junior Member Last Online: Apr 29th, 2012 11:47 Join Date: Apr 2011 Location: Penrith	I've allready done that and have a 12v permanent supply but no "switched" supply as far as i can tell, what i want to do is put a "switched" supply direct from the battery to that connection to test the motor to prove that its a wiring fault. Only problem is I don't know which connection is the switched live, I also don't understand why there it needs a permanent live to the motor????

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