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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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LED Tailgate Brake Light Still Alight When Ignition OffViews : 1345 Replies : 12Users Viewing This Thread : |
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Nov 25th, 2010, 16:28 | #1 |
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LED Tailgate Brake Light Still Alight When Ignition Off
Hi Guys,
My LED tailgate hi-level brake light is stuck on after the ignition is switched off. The other two brake lights all operate normally. The LED only goes out after about 60secs of its own accord. All of the brake lights work properly when the key is set to ignition and when the car is running. It's when you turn the car off and turn the key back from ignition that the LED lights up on its own. It's not associated with any other lighting combination. I tried seeing whether it goes out when the interior courtesy lights fade out but there's no link. My car is a manual gearbox. I took the car to the dealer today. They're a good dealership but they were puzzled and that's not normally good news for my credit card based upon past experience! Does anyone have any ideas? Thanks, Arianne. |
Nov 25th, 2010, 16:39 | #2 | |
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Nov 25th, 2010, 17:00 | #3 |
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bobdabuilda
I don't think it's the brake pedal switch because that would surely also affect the other two brake lights. And it would show the same symptom all of the time and not just when the ignition is switched off. Thanks though for taking the time to reply. Any other thoughts? Arianne |
Nov 25th, 2010, 17:32 | #4 |
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It doesn't on the Golf and displays those exact characteristics, but like I said unlikely to be of any help as they are different cars. Good luck and let us know what is found.
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Dec 9th, 2011, 17:46 | #5 |
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Link between alternator & LED Brake Light Issue?
An interesting development......
Alternator failed last weekend, £654 total repair (£404 for alternator, £140 labour & the rest was vat, ouch). But the LED light problem has gone away. The dealer didn't say that they did anything about the lights. They just replaced the alternator & that's that. So I wonder whether there was a link between the output from the alternator going wonky (gradually) and some residual current left over after the ignition had been cut? The LEDs might be the most sensitive bit of the lighting system to show the left over charge. We've lived with the LED problem for quite a while and it's rather odd that they have just returned to normal. Alternatively, it could simply be that the battery was almost completely flat and needed to be recharged (the alternator gave up completely last weekend and so the battery was drained). But I thought it was worth posting Arianne |
Dec 9th, 2011, 18:23 | #6 |
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Dec 10th, 2011, 11:13 | #7 | |
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put two and two together .. Your dealer should be very aware of this and your car may well have a part payment policy against it and the waterproofing kit . , again your dealer should automaticaly check this when ever you visit them go back to them see what they can do . you might salvage your CEM if the damage isnt too bad .
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