Reversing lights permanently on

Technical Advice, Faults and How-To Information.
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Shunt
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Joined: Sat Nov 05, 2016 2:34 pm

Post by Shunt »

I noticed whilst washing my F at the weekend it's reversing lights are permanently on. Not full brightness, but a faint glow when the ignition is off and the car locked, they just stay on. Anyone had this issue before and know of a fix, it's a 2013 V8S?
Amethyst Black V8S
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simpleR
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Post by simpleR »

I think that's a new one!

Presume a bad earth somewhere. Auto electrician? Or dealer?
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Tel
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Post by Tel »

Get your adjustable out and Reboot the car first - could be the 'Brain' has got confused.
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Shunt
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Joined: Sat Nov 05, 2016 2:34 pm

Post by Shunt »

I intend to pull the fuse later, I thinks it's fuse no 12 in the passenger footwell.
Amethyst Black V8S
Estoril M135i
Red BMW S1000R
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cj10jeeper
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Post by cj10jeeper »

Shunt wrote: ↑Mon Nov 11, 2019 10:41 am I intend to pull the fuse later, I thinks it's fuse no 12 in the passenger footwell.
Fuse or not do the full battery disconnect and see if it remains once rebooted

Used to be so easy in the old days of just change the micro switch on the gearbox or mechanism
2014 MY 3.0 V6S Roadster
Subtle enhancements to create the car I wanted from SVR nose cone, 400 series side skirts & customised 'design' rear bumper, to heated SVR steering wheel and more
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Shunt
Posts: 35
Joined: Sat Nov 05, 2016 2:34 pm

Post by Shunt »

If I reboot it by disconnecting the battery, will it lose the 1 touch windows settings. I had to have that reset at the last service?
Amethyst Black V8S
Estoril M135i
Red BMW S1000R
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cj10jeeper
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Joined: Sat Apr 15, 2017 8:37 pm

Post by cj10jeeper »

Shunt wrote: ↑Mon Nov 11, 2019 12:00 pm If I reboot it by disconnecting the battery, will it lose the 1 touch windows settings. I had to have that reset at the last service?
Some people report this, but not happened to me.
If it does it’s a simple reset to do yourself
2014 MY 3.0 V6S Roadster
Subtle enhancements to create the car I wanted from SVR nose cone, 400 series side skirts & customised 'design' rear bumper, to heated SVR steering wheel and more
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scm
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Post by scm »

Window reset is easy to do. I think you may also lose your trip values.
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Shunt
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Joined: Sat Nov 05, 2016 2:34 pm

Post by Shunt »

Fixed it :D

Pulled fuse 12 and they went out, replaced it and they were back on.

Then I spotted the aftermarket exhaust valve remote switch wiring. The black negative wire was connected to fuse 11 l/H port. I removed this and earthed it elsewhere, bingo its sorted. So they've been glowing for around 2 years :P
Amethyst Black V8S
Estoril M135i
Red BMW S1000R
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cj10jeeper
Posts: 1932
Joined: Sat Apr 15, 2017 8:37 pm

Post by cj10jeeper »

Good result
Satisfying to fix something yourself.
2014 MY 3.0 V6S Roadster
Subtle enhancements to create the car I wanted from SVR nose cone, 400 series side skirts & customised 'design' rear bumper, to heated SVR steering wheel and more
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