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C4 - DS4 Owners :: Forums :: Citroen C4 Picasso and Grand C4 Picasso (B78) 2013 onward :: C4 Picasso and Grand C4 Picasso (B78) Problems and Issues
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Reversing sensor fail, lights ok
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Author Post
TonyRick   
Mon Oct 17 2022, 02:31pm
Member No: #55155
Joined: Dec 05 2019
Location: Shropshire
 2016 Grand Picasso - the reversing sensors, and the alert beep when engaging reverse, have gone silent. Have cleaned the sensors with WD without effect. The reversing lights still work so it's hard to suspect the switch - unless it has two outputs. If so, where is the switch, please? Thanks.
vexorg   
Tue Oct 18 2022, 03:28am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 Do the speakers work at the back?
Does it have the display showing the distance?
1 User said Thank You to vexorg for this Post :
 TonyRick (19 Oct 2022 : 13:27)
TonyRick   
Wed Oct 19 2022, 01:31pm
Member No: #55155
Joined: Dec 05 2019
Location: Shropshire
 Thanks for that hint, David. Will check the speakers tomorrow. I didn't realise there's meant to be a distance display. Ours just bleeps more and more desperately as you reverse - 2016 reg. If the speakers don't work, what might that mean, please?
vexorg   
Thu Oct 20 2022, 03:27am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 I think it depends on the model if you get the graphic display or not.
Mine has the beeping, and a distance display on the screen where you get green, yellow or red bars depending on the distance for each sensor.
1 User said Thank You to vexorg for this Post :
 TonyRick (20 Oct 2022 : 04:57)
Magistrate   
Thu Oct 20 2022, 07:17am
Member No: #1731
Joined: Dec 15 2007
Location: Walsall West Midlands
 On my C4 there is a switch to disable reversing sensors, if yours has that facility it would be worth checking.
 

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