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Lemonjelly
Member Since: 04 Jul 2022
Location: CHORLEY
Posts: 3
  
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| Parking sensor fault codes and rear sounder |
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I've just bought a 2012 Disco 4 HSE, and I'm trying to get the front/rear parking sensors to work. I get a 3 sec beep from the front parking sensor at ignition, and the parking button blinks if I press it, along with these errors:
B1B57-11 (2F) Front sensors power circuit - General electrical failure - circuit short to ground
B1B58-11 (2F) Rear sensors power circuit - General electrical failure - circuit short to ground
As I've never heard the rear sounder I thought I'd start by replacing that. However when I've checked behind the passenger cargo trim (RHD), I can see where the sounder should go, but there isn't one, and also no connector / cabling for it.
I was hoping someone might know if that suggests it's been removed or if I'm looking in the wrong place? From looking elsewhere / videos it looks like I should have another couple of cables on the loom, but there aren't any and it doesn't look like it's been butchered (still has the wrapping etc).
Cheers
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 4th Jul 2022 2:32 pm |
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Lemonjelly
Member Since: 04 Jul 2022
Location: CHORLEY
Posts: 3
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An update on this as I've fixed it thankfully.
I replaced all 4 rear sensors to start with, which changed the error code to problems with all 4 sensors. From looking on this forum that pointed to the loom, so I replaced that, and now everything works.
Based on that I assume there isn't a rear speaker fitted in later disco 4s - although there still is the space for it (but no cable).
Cheers
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| 19th Jul 2022 7:23 pm |
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swansty
Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 917
 
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I have the same fault after changing a faulty rear sensor last week. Did you work out which loom it was? Front, rear or both? I have exact same error codes. Checked each sensor with the IID but nothing untoward with them
Edit: unplugging rear sensor loom removed the fault code so that would point to the rear loom.
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| 23rd Jan 2023 7:48 pm |
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Lemonjelly
Member Since: 04 Jul 2022
Location: CHORLEY
Posts: 3
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Yeah I replaced the rear loom - it was brittle when I switched the sensors so it made sense, and all good since
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| 25th Jan 2023 11:22 pm |
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peat729
Member Since: 12 May 2011
Location: Dorset
Posts: 4
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Hi one and all, I am having the same issue. I would appreciate your help.
Had the camera not working message last week, changed the rear loom and 4 sensors, worked for 1st drive now have fault back.
Any thoughts
Thanks in advanced
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| 6th Feb 2023 6:54 pm |
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