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      09-23-2021, 12:25 PM   #1
B.ico
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Parking/Daytime running light malfunction

Hi guys,
I have a 2017 BMW m2 and I had xenon lights equipped.
I recently just upgraded to the bayoptiks headlights.
The installation was smooth. Everything works.
I’m just getting a Parking/daytime running light malfunction.
I coded OFF the warm/cold monitoring as well as checked ON the LED portion on BimmerCode.
I’ve been getting a error fault code “804201” after running Carly.
Any suggestions?
Im thinking the TMS module could be faulty but I don’t think so because all the lights work… so it’s a little weird
Any input would be highly appreciated
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      09-27-2021, 03:31 PM   #2
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      09-29-2021, 02:27 PM   #3
samsamdar
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Contact Bayoptiks... They'd know what to do for sure.
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      10-09-2021, 05:55 PM   #4
B.ico
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Quote:
Originally Posted by samsamdar View Post
Contact Bayoptiks... They'd know what to do for sure.
Haha I've tried but no response
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      10-09-2021, 05:57 PM   #5
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But okay, I got some new diagnostics if this could help.
So I noticed today that when I turn the car on with the lights ON, there is no daytime/parking light malfunction. When I mean lights on, I mean like with the DRL as well as the beam light coming on.

When I turn the car on with the lights OFF, OFF as in the beam lights and only the DRL on, I get the daytime/parking light malfunction.

Any help would be appreciated….
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      12-30-2023, 03:09 PM   #6
f32manny
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Did you ever troubleshoot the issue having the same one currently
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