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05-11-2017, 10:31 PM | #1 | |
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Faulty sensor on my rear lights...
Hi guys..
My 1998 5 series is telling me a have a rear light not working on the dashboard and yet all my lights work. I looked at manuals, Internet etc but with no avail.. Can anyone help? Where is the sensor in the taillight assembly? If I knew that I might know where to start... Thanks :-) |
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05-12-2017, 05:21 AM | #2 | |
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Re: Faulty sensor on my rear lights...
You didn't happen to install LED bulbs did you?
If so then that is your problem and you likely need to install resistors.
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05-12-2017, 05:40 AM | #3 | |
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Re: Faulty sensor on my rear lights...
No it just came on, on its own.. I haven't changed anything in my lights at all..
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05-12-2017, 06:37 AM | #4 | ||
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Re: Faulty sensor on my rear lights...
Quote:
As Steathee brought up, LEDs draw very little current, and changing to LEDs without adding some parasitic load to "fool" the system would generate the warning.
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05-12-2017, 06:43 AM | #5 | |
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Re: Faulty sensor on my rear lights...
The Cadillac system from 50 years ago (yes, 1967- 50 years) was far more effective. It used fiber optics to monitor actual lamp output instead of electrical load, and reported that to the driver. In another 20-30 years, perhaps the vaunted German engineering will catch up to old Detroit, err, Flint.
In the interim, check ALL the rear lamps, including the dual license lamps, side markers, etc.
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05-12-2017, 07:55 AM | #6 | |
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Re: Faulty sensor on my rear lights...
Ok thanks for that... Looks like I'm stuck with a faulty warning light permanently then...
It's wouldn't bother me as much apart from the fact it goes "ding!" Everybody time I start the car... |
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