danrjm
Member Since: 11 Sep 2018
Location: Cardiff
Posts: 73
  
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| Parking sensors, finding the fault... |
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I had three fault codes:
B1B57-11 Front sensor power circuit
B1B58-11 Rear sensor power circuit
B1B44-96 Rear right outer sensor
I presume that rear right outer sensor is the driver's side (UK car) rear corner and so bought a replacement sensor and plugged it in. I can get my hand in behind the exhaust and unclip it from there so no need to take the bumper off. Cleared the codes, drove it around and put it into reverse, and the 'rear right outer sensor' fault went away but the front and rear 'power circuit' faults remained and the sensors still didn't work.
I took the new sensor out, clear the codes and put it into reverse and still doesn't work with same faults. Put the old sensor back in and took the left outer rear sensor out, cleared codes, reverse, same thing. Disconnected the front parking sensor loom under driver's side headlight, reset and reverse, same thing again. It seems that whatever I do, the parking sensors will not work and the power circuit faults will not go away.
As I disconnected the front and the fault remained, does this definitely mean its the back? If I still get the faults with the two rear outer sensors disconnected, does that mean the fault is with one or both of those two sensors, or does it mean the fault is one (or both) of the inner two? Would like to know before I have to dismantle the rear bumper!
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 26th Sep 2020 6:48 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10639
 
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One of the rear inner sensors.
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| 26th Sep 2020 7:11 pm |
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danrjm
Member Since: 11 Sep 2018
Location: Cardiff
Posts: 73
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Off with the bumper then! Thanks.
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| 26th Sep 2020 7:27 pm |
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J.Prezes
Member Since: 10 May 2015
Location: usually at my Indy's shop
Posts: 62
 
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when one of my rear sensors went my Indy replaced all four + rear loom. He said that that changing one doesn't make any sense because soon another one would fail. It is all because when driving in rain or especially on salted roads oxidation will take its toll
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| 4th Oct 2020 12:26 pm |
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