reb78
Member Since: 21 Apr 2018
Location: Herts
Posts: 217
  
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| Parking sensor fault - sensor or harness |
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I have had a parking sensor fault for some time. Read the codes and it was the Rear Right Inner sensor B1B46 on Hawkeye.
Ordered a sensor, went to double check which one I need to replace and now I also have the Rear Left Outer B1B48 flagged.
I assume its just bad luck that I now have two sensors gone? Is it likely to just be the sensors or is the harness a known fault and likely to cause this? Rear left Inner and Rear Right Outer dont flag a fault code.
I wont pull the bumper off until I have another sensor if thats whats needed.
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 6th Jan 2022 4:51 pm |
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reb78
Member Since: 21 Apr 2018
Location: Herts
Posts: 217
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So being curious, I pulled the bumper. New sensor doesnt click at all when replacing the rear right inner and rear left outer. It does click if I replace it with one of the other two (which also click when in reverse). So it looks like it is the loom!
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| 6th Jan 2022 5:46 pm |
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reb78
Member Since: 21 Apr 2018
Location: Herts
Posts: 217
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And looking closely there are some very obvious breaks in the loom to the two sensors throwing a fault. I am going to try repairing them for now. It looks like they have rubbed on the bumper. What a silly design to make these little wires so unprotected and vulnerable.
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| 6th Jan 2022 6:00 pm |
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reb78
Member Since: 21 Apr 2018
Location: Herts
Posts: 217
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Fixed. Two wires needed repairs.
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| 6th Jan 2022 8:17 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10485
 
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What colour were they ?
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| 6th Jan 2022 8:32 pm |
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reb78
Member Since: 21 Apr 2018
Location: Herts
Posts: 217
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Brown on the far left and green on the inner right (I think - all back together now so cant check). I used those solder heatshrink things you can buy. Had some fairly tiny ones. Not ideal but had continuity afterwards and they dont really carry a current. All working now and no fault codes.
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| 6th Jan 2022 8:37 pm |
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