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Ok so i am back with another question

I have been having "Parking Assist Unavailable" come up on my dash for some time.

- I read on the forum to put in reverse, and feel or listen for the clicks from the sensor, I did this and one of the sensors indeed was not working.
- Ordered a new sensor, replaced and tested...still not working. So i took the old one and placed it in another sensor and it worked fine.
- This leaves me to believe that one arm of the circuit is potentially faulty , but i thought i would ask if anyone else has overcome an issue similar. Is it a case of trying to retrace the wire, replacing a fuse, etc???

Can i bypass the faulty arm so that it will work off of 3 instead of the 4, at least until i get round to looking for the culprit in more depth.
 

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You might have a bad connection on the multi plug. MES could be useful here or trace it back with a multi meter. There is a live, earth and trigger wire to each sensor.
 
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