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Old 23rd March 2016, 09:30   #1
75tourer
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Default parking sensor query

hi- have had a problem thats been occurring regularly during this past winter. The parking sensors on the rear of my tourer work intermittently. When selecting reverse they will sound a continous beep until moved out of reverse. Sometimes the continous beep will last for 3-4 seconds then go off. Seems to be worse in cold/wet weather. No water ingress into the car anywhere. I was thinking along the lines of a poor connection somewhere.
Where is the control unit for the reversing sensors located? I will also get under the rear of the car and try and access each individual sensor connector to check/clean.
Any suggestions to the best course of action- Thamks
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Old 23rd March 2016, 09:58   #2
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Red face Bumper off

Think you will need to take bumper off
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Old 23rd March 2016, 11:14   #3
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Sounds like damp, parked my 75 Tourer on grass for 3 days or so, reverse sensors stopped working, moved to hard standing 2 days and all back to normal, suggests damp from grass in wiring/sensors was the problem having not happened before that.
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Old 23rd March 2016, 11:17   #4
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When that fault occured it was a bad connection on the plug of one of the sensors, yes, bumper off and a 'waggle'. You may be able to suss the culprit with the bumper on but easier to change off.
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Old 23rd March 2016, 19:54   #5
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Ok folks bumper of it is then. Is there a control unit nearby that the sensors plug into?
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Old 23rd March 2016, 20:20   #6
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Quote:
Originally Posted by 75tourer View Post
Ok folks bumper of it is then. Is there a control unit nearby that the sensors plug into?

The parking sensor ECU is located behind the offside load area trim.

Here it is in a saloon but its roughly in the same place in a tourer.



Dave T

Last edited by Duotone; 23rd March 2016 at 20:24..
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Old 4th April 2016, 16:29   #7
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Quote:
Originally Posted by Duotone View Post
The parking sensor ECU is located behind the offside load area trim.

Here it is in a saloon but its roughly in the same place in a tourer.



Dave T
Recently I've been having similar issues with my zt saloon parking sensors. They seem to work in the mornings but not in the afternoon. Only assumption is if it's due to it being warmer in the afternoons? I've checked each sensor and there is the clicking sound as expected from each one. ive made sure the wiring is connected ok but can't think of anything else to look at. Revers lights are also working so guessing the switch is ok?
Is there anything else to check?
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