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Old 4th March 2017, 20:42   #1
Graham E
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Default Parking sensors going funny

This last week when I go into reverse my parking sensor buzzer thing gives off a long beep then the sensors do not work but sometimes they work properly.

I'm guessing there is something wrong when I get the long beep but what?
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Old 4th March 2017, 20:43   #2
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Quote:
Originally Posted by Graham E View Post
This last week when I go into reverse my parking sensor buzzer thing gives off a long beep then the sensors do not work but sometimes they work properly.

I'm guessing there is something wrong when I get the long beep but what?
they probably need a good clean
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Old 4th March 2017, 20:52   #3
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The car is clean. Or do you mean the sensor?

If so is there a special way to do this?
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This vehicle was the 5,602nd ZT-T to run off the production line, out of 8,249
This vehicle was the 383rd ZT-T CDTi + (115) to be made out of 522
This vehicle was the 995th ZT-T in XPower Grey (code: LEF) to be made out of 1,673 XPower Grey ZT-Ts
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Old 4th March 2017, 20:53   #4
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the sensors mate.....give them a scrub with a toothbrush
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Born Monday, 16th June 2003 @ 14:30:35
This vehicle was the 9,196th ZT to run off the production line, out of 18,894
This vehicle was the 576th ZT 180 + to be made out of 828
This vehicle was the 871st ZT in XPower Grey (code: LEF) to be made out of 3,143 XPower Grey ZTs
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Old 4th March 2017, 21:00   #5
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Ok cheers will try that.
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This vehicle was the 5,602nd ZT-T to run off the production line, out of 8,249
This vehicle was the 383rd ZT-T CDTi + (115) to be made out of 522
This vehicle was the 995th ZT-T in XPower Grey (code: LEF) to be made out of 1,673 XPower Grey ZT-Ts
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Old 4th March 2017, 21:07   #6
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If that don't work give this thread a bump and i am sure another member will be able to help mate.
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Old 4th March 2017, 22:48   #7
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Hi,

I have exactly the same problem with mine, but it's intermittent: 90% of the time they work fine.

They stopped working permanently a while ago (long tone every time I put it in reverse) so I took the bumper off to see if the wiring was OK. Other people have reported that on their cars, there's a soldered joint in the rear bumper loom which corrodes and fails. Not on my car though- everything was clean and checked out with a meter when I tested it.

The other test is to switch the car's ignition on and then put it in reverse - if you hold your hand near the sensors in turn, you should hear them clicking.

I got it all working again by gently scrubbing the outside face of the sensors with a toothbrush and some Servisol switch cleaner. The only other thing which I also did that may have helped matters was to clean the multiplug where the bumper loom joins the car's loom.

Good Luck!
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Old 5th March 2017, 10:36   #8
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Can you try testing?
ignition on, reverse gear, put your hand over each sensor and the one that does not make the clicking sound will need looking at.
Mine went "wonky" when wet so on a dry warmish day ran some clear sealant round the edges of the each sensor.
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Old 5th March 2017, 10:39   #9
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Fault probably lies with one of the push on connectors to the sensor. Bumper off, select reverse and wobble each connector in turn.
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Old 5th March 2017, 11:43   #10
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First thing I would do is put the car in reverse and make sure the reverse lights come on that indicates that the switch is working, secondly do as other members have suggested and put your ear to each sensor in turn, you will hear a click click very faintly any ones that aren't working won't make that sound,
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