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2021 X3 Max Turbo RR Smrt Shck
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Discussion Starter · #1 ·
I have no tail lights and no brake lights but when I turn on the hazard lights, it works. I did find a fuse that was bad on the dash fuses. I replaced it but the lights are still not working. Any idea what it could be? Maybe another fuse from the box under the rear seats? A relay? Where and which relay/fuse? Any suggestion/input is greatly appreciated!
 

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I would start by checking for power (12v) on one side of the brake pedal switch. If you don’t have power there check fuses again or see if you have a broken wire in that area. Which fuse did you replace that was blown? Which circuits did it cover?
 

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2021 X3 Max Turbo RR Smrt Shck
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Discussion Starter · #8 ·
Thanks to everyone for the Welcomes! Well, it has turn out to be a bigger headache than I thought! I took out the back seat to find a mess of wires. Apparently the metal bracket from the seat must of touched the positive on the battery and there is a short or something. A ground wire, the plastic around it was completely melted and melted other wires as well. I just ordered the factory rear wiring harness. Having to start all fresh and clean. Once I re-do that, I hope it will solve my problem. Unfortunately, it's hard to say who caused this problem. When I bought this X3, the dealership had already installed some accessories and then i took it to another shop that did more accessories, though they said they cleaned up some of the wiring mess that the dealership did. But none put a cap over the positive battery terminal.
I will say, it's hard to find quality work! I feel like you have to watch everything they are doing. I'm glad there is not much more that I can do to my machine! And I can do it myself.
Thanks,
Melissa
 

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I did not know the newer units had hazards. I added the XTC turn signal kit on mine and that has hazards.

I assume just hazards and no turn signals?

Tim
 

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2021 X3 Max Turbo RR Smrt Shck
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Discussion Starter · #10 ·
The button is an XTC with the horn. The dealership must of installed it as I wanted a street legal kit and for that, you need a horn. If it was there originally, that I don't know.
I added a pic. You can zoom in and see the switch in the center dash.

Melissa
 

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Mine is similar and the same brand.
It's aftermarket.

Tim
 
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2021 X3 Max Turbo RR Smrt Shck
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9 Posts
Discussion Starter · #12 ·
Well, I didn't ask for it and it was there when I bought my machine. I did add the turn signals too. It's on a switch on the left of the steering wheel and it's self canceling.So i don't have to worry about turning it off. :)
 

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I would start with that unit to see If that has something yo do with your lack of brake lights.

Tim
 
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