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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Rear Park Assist FaultViews : 8572 Replies : 8Users Viewing This Thread : |
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Nov 10th, 2010, 20:51 | #1 |
Senior Member
Last Online: Mar 28th, 2024 15:34
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Location: Aberdeenshire
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Rear Park Assist Fault
I have been getting a rear park assist service message intermittently for the last couple of weeks.
When it is on, I have no rear park assist, but for about 90% of the time it works fine and no message is displayed. (usually first thing in morning it does not work). I had a diagnostics done a few weeks ago when the car was into the dealers, although no fault messages were showing. The fault code printout, amongst many others, showed - REM -4F43 Parking assistance sensor 2 faulty signal. Anyone know if this is just a bad connection to sensor 2, given the fact it works most of the time, or if it shows sensor 2 is on the way out and needs replacing? Also - can I only get to this by removing the rear bumper etc? |
Nov 10th, 2010, 22:23 | #2 |
Master Member
Last Online: Feb 3rd, 2024 18:39
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Location: Sunny Scotland
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Hi
I am sorry to say, that I dont believe that the dealer could not see or retrieve any error messages as the extent and depth of information that the car holds would really impress you - when I connected up the laptop to my XC with a rear park assis error, it claimed the error had been seen 631 times... and it showed me the code...so its all logged! Anyway - they must have seen something to give you the code they did. Sensor two is the second from the left as you look at the rear of the car. If the error comes and goes, I would put money on it being either a rear sensor or possibly the wiring harness from sensors to controller - there was a recall for the wiring... depending on age. Yes - the bumper has to come off to get to the sensor - there is a big cover over all the wires and sensors that can only be removed with the bumper off. I did a wee write up for changing a sensor - with bumper removal - have a search and you will find it... I usually append "guide" to the post so its easier to find! David |
Nov 11th, 2010, 07:46 | #3 |
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Last Online: Apr 15th, 2024 10:13
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Location: Derby
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And I have sensors and a sensor harness for sale if you need them.
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1997 V70R AWD, Saffron, Manual; Lotus Carlton; Ascona 400; Mini Cooper S Works; 4.2 Supercharged Range Rover; Land Rover Discovery 4; Suzuki GSF1200N; BMW R80/7; Velocette Venom; Daimler V8 250. |
Nov 11th, 2010, 08:19 | #4 |
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Last Online: Mar 28th, 2024 15:34
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[QUOTE=BestGear;774968]Hi
I am sorry to say, that I dont believe that the dealer could not see or retrieve any error messages as the extent and depth of information that the car holds would really impress you - Thanks for the help - I will look back for the guide. Think I didnt explain this too well - the dealer gave me a full print out of all faults logged. I was referring that the message was not showing on the dashboard display as a fault "rear park assist service" at the time. Ascona - can you pm me cost for the parts you have - are these "fit all" models? Mine is a 54 D5 auto. Is it trial and error whether it is sensor or loom? |
Nov 11th, 2010, 16:16 | #5 |
Master Member
Last Online: Feb 3rd, 2024 18:39
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The error from VIDA will be specific to a sensor.
I would check the loom while changing the sensor as the recall/failure was for water ingress so will be visible if you inspect the plugs etc when in bits. You should be lucky in that you dont need a dealer to reset the error when you have changed the faulty sensor. David |
Nov 11th, 2010, 19:09 | #6 | |
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Quote:
Rob.
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1997 V70R AWD, Saffron, Manual; Lotus Carlton; Ascona 400; Mini Cooper S Works; 4.2 Supercharged Range Rover; Land Rover Discovery 4; Suzuki GSF1200N; BMW R80/7; Velocette Venom; Daimler V8 250. |
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Nov 14th, 2010, 14:09 | #7 |
Junior Member
Last Online: Dec 19th, 2023 20:04
Join Date: Mar 2010
Location: lowestoft
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parking assist
Just had the same problem, it started after heavy rain a few days ago, following the posts on this site, I removed the bumper cover and sensors. Put the sensors in the oven at 30C for half an hour and WD40 the connections, all good now.
Hope this helps, Steve. |
Jan 7th, 2017, 15:44 | #8 |
New Member
Last Online: Aug 22nd, 2017 19:55
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Location: rochester
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Park Assist harness and sensors
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Jan 7th, 2017, 17:50 | #9 |
The Daddy
Last Online: Feb 29th, 2024 15:07
Join Date: May 2010
Location: Manchester
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Doubt he still has them after 6 years, Fella
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XC90 V8 Exec, C70 2.4T Convertible, S70 T5 CD, 850 TDI, 2 x Escort vans and a 2.8i Capri. Clearout has begun, but must continue! |
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