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Dixie Dean
Member Since: 06 May 2006
Location: Halewood
Posts: 298
 
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Hi everyone. Parking sensors playing up, with the loud squeal on selecting reverse.
Codes read as follows:
B1B44 right rear outer sensor.
UO155 Lost communication with instrument cluster control module
UO140 Lost communication with body control module
U0300 Internal control module software incompatibility
No. 1 is pretty self explanatory, but what about the rest?
All advice gratefully received 2008 D3 HSE Stornoway Grey with Ebony Leather, towing a Coachman VIP 575
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 7th Apr 2018 10:48 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
 
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Usually ignore U codes
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| 7th Apr 2018 3:44 pm |
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Dixie Dean
Member Since: 06 May 2006
Location: Halewood
Posts: 298
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Thanks Pete K. Will sort out the sensor and clear the codes! 2008 D3 HSE Stornoway Grey with Ebony Leather, towing a Coachman VIP 575
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| 8th Apr 2018 9:09 pm |
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Dixie Dean
Member Since: 06 May 2006
Location: Halewood
Posts: 298
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I managed to get the sensor off, and replace it with one from ebay, but I still get the continuous noise of a fault and my IID tool gives the same problem, offside rear sensor.
How can I tell if its the wiring or a duff new sensor? 2008 D3 HSE Stornoway Grey with Ebony Leather, towing a Coachman VIP 575
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| 26th Apr 2018 5:13 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
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you could read the live readings from the 4 sensors
they should give a reading between 0.5m and 2.5m (see if any different between the 2 sensors)
or measure the voltage between the black and brown wires. Should get 5V or 12V with ignition on.
that just leaves 1 wire unknown contion
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| 26th Apr 2018 6:19 pm |
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Dixie Dean
Member Since: 06 May 2006
Location: Halewood
Posts: 298
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Quote:you could read the live readings from the 4 sensors
they should give a reading between 0.5m and 2.5m (see if any different between the 2 sensors)
Thanks Pete K. I have a basis understanding of electronics. However, a couple of questions:
1. What's the best way to read the live readings from each of the sensors, and
2. What does the "m" stand for. 2008 D3 HSE Stornoway Grey with Ebony Leather, towing a Coachman VIP 575
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| 26th Apr 2018 7:24 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
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Do you have a gap iid tool ?
M meters
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| 26th Apr 2018 8:56 pm |
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Dixie Dean
Member Since: 06 May 2006
Location: Halewood
Posts: 298
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I have the iCarSoft, so I can see which sensor is not working. B1B44 right rear outer sensor. 2008 D3 HSE Stornoway Grey with Ebony Leather, towing a Coachman VIP 575
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| 27th Apr 2018 11:41 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
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I think you had better take the bumper off.
Buzz out the wiring.
Check for shorts
and inspect loom for rubs / shorts / etc
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| 27th Apr 2018 11:44 am |
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Dixie Dean
Member Since: 06 May 2006
Location: Halewood
Posts: 298
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Thanks for that Pete, but it'll have to wait until it stops raining  2008 D3 HSE Stornoway Grey with Ebony Leather, towing a Coachman VIP 575
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| 27th Apr 2018 12:41 pm |
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