Electrics: - Parking sensor fault

SED5 · Feb 28th, 2011, 18:07

Hi everyone, I am having an error message telling me that parking assistance service required and both front and rear sensors have stop working, am I right in thinking that if individual sensors fail the remaining sensors should carry on working ? is the error message generated by the sensor control module at the back of the car or the main ECU? I am thinking that maybe this unit has failed, can you safely unplug the front or rear sensors from this unit to help identify the problem or could it maybe just a fuse ? I have located the said fuse but removing it is a different matter !! Any advice would gratefully recieved

Many Thanks
Michael

Clan · Feb 28th, 2011, 18:31

a stored fault code will indicate which sensor is faulty , it does make life a bit easier , you probably have just one sensor at fault ..

JimG · Feb 28th, 2011, 19:04

Quote:

Originally Posted by Clan

a stored fault code will indicate which sensor is faulty , it does make life a bit easier , you probably have just one sensor at fault ..

Agreed. I have a fault with sensor 3 and the whole system is down. £76 I was quoted from an indy just to supply the part! Needs painting too. Apparently it can be a DIY job if you have the confidence. Have a search around for other threads.

Jim.

SED5 · Feb 28th, 2011, 19:23

Thanks Clan, are you saying that one sensor at fault can stop both front and rear sensors working irrespective of where that faulty sensor is located.....
Thanks
Michael

REDSHEEPRIDD · Feb 28th, 2011, 19:58

My warning light came on intermittently months ago, then worked fine for a couple of months.

Started again the other week - seems to be connected with heavy rain or washing the car - diagnostic code shows;

REM -4F43 Parking assistance Sensor 2 faulty signal

Not sure if this means a connection is bad or a new sensor required - as I say, sometimes springs back into life for a while..

spokoluzik · Feb 28th, 2011, 20:12

Quote:

Originally Posted by REDSHEEPRIDD

Not sure if this means a connection is bad or a new sensor required - as I say, sometimes springs back into life for a while..

try to clean it with soft brush and some soap.
if you able to remove bumper can also try clean connectors.
sensor 2 is second from the left.

Mervin · May 28th, 2011, 15:42

Michael,
My sensor no. 6 is faulty. Do you know where this is located? I have both front & rear parking assistance on xc90 2007.
Regards
Mervin

Clan · May 28th, 2011, 15:51

It is one of the inner ones on the front , left i believe ...

Mervin · May 28th, 2011, 18:02

Michael,
Thanks. Spot on. Only had them fitted by Volvo dealers Feb10. Error occurs after heavy rain or car wash. Are the from sensors easier to replace ?
Mervin

Clan · May 28th, 2011, 18:10

You will have warranty on them , best take the car back and explain what it going on .

Feb 28th, 2011, 18:07	#1
SED5 Junior Member Last Online: Jun 26th, 2011 10:41 Join Date: Dec 2007 Location: Pembrokeshire	Parking sensor fault Hi everyone, I am having an error message telling me that parking assistance service required and both front and rear sensors have stop working, am I right in thinking that if individual sensors fail the remaining sensors should carry on working ? is the error message generated by the sensor control module at the back of the car or the main ECU? I am thinking that maybe this unit has failed, can you safely unplug the front or rear sensors from this unit to help identify the problem or could it maybe just a fuse ? I have located the said fuse but removing it is a different matter !! Any advice would gratefully recieved Many Thanks Michael

Feb 28th, 2011, 18:31	#2
Clan Experienced Member Last Online: Today 13:59 Join Date: Jun 2007 Location: L/H side	a stored fault code will indicate which sensor is faulty , it does make life a bit easier , you probably have just one sensor at fault .. __________________ My comments are only based on my opinions and vast experience .

May 28th, 2011, 15:42	#7
Mervin Junior Member Last Online: Apr 14th, 2024 19:59 Join Date: Nov 2009 Location: Potters Bar	Parking sensor faulty Michael, My sensor no. 6 is faulty. Do you know where this is located? I have both front & rear parking assistance on xc90 2007. Regards Mervin

May 28th, 2011, 15:51	#8
Clan Experienced Member Last Online: Today 13:59 Join Date: Jun 2007 Location: L/H side	It is one of the inner ones on the front , left i believe ... __________________ My comments are only based on my opinions and vast experience .

May 28th, 2011, 18:10	#10
Clan Experienced Member Last Online: Today 13:59 Join Date: Jun 2007 Location: L/H side	You will have warranty on them , best take the car back and explain what it going on . __________________ My comments are only based on my opinions and vast experience .

Feb 28th, 2011, 19:23	#4
SED5 Junior Member Last Online: Jun 26th, 2011 10:41 Join Date: Dec 2007 Location: Pembrokeshire	Thanks Clan, are you saying that one sensor at fault can stop both front and rear sensors working irrespective of where that faulty sensor is located..... Thanks Michael

Feb 28th, 2011, 19:58	#5
REDSHEEPRIDD Senior Member Last Online: Mar 28th, 2024 15:34 Join Date: Feb 2010 Location: Aberdeenshire	My warning light came on intermittently months ago, then worked fine for a couple of months. Started again the other week - seems to be connected with heavy rain or washing the car - diagnostic code shows; REM -4F43 Parking assistance Sensor 2 faulty signal Not sure if this means a connection is bad or a new sensor required - as I say, sometimes springs back into life for a while..

May 28th, 2011, 18:02	#9
Mervin Junior Member Last Online: Apr 14th, 2024 19:59 Join Date: Nov 2009 Location: Potters Bar	Michael, Thanks. Spot on. Only had them fitted by Volvo dealers Feb10. Error occurs after heavy rain or car wash. Are the from sensors easier to replace ? Mervin

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