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C7 running lights on passenger doesn’t work properly.

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Old Oct 5, 2025 | 04:07 AM
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Default C7 running lights on passenger doesn’t work properly.

I have a c7 2014 m7 corvette, I have a issue with the passenger side running lights out, so specifically I believe it’s something with BCM nothing with my wiring harness, so current mods, are 50$ led white side markers they were working perfectly fine btw, also have a aftermarket eBay headlight with ballast which is 380$ and then the front side markers I don’t have plugged in because when I took it out I went for a drive and it damaged the wires(I know how to fix that), and z06 clear tail lights. so could it be something with my BCM or? (Edit add: I also got the morimoto harness(capacitors) to see if that’s the issue but didn’t work either.


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Old Oct 5, 2025 | 09:08 AM
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When buying replacements parts, especially electrical, I always advise with sticking with OEM replacements from reputable vendors that don't sell counterfeits

Alot of people have gotten bit by non-OEM parts.

This may be your problem.

A lot less hassle in the long run to always use OEM.
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Old Oct 5, 2025 | 09:43 AM
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What is in common with the two lights that are out. Very strange. Normally if a light goes out inside the headlight, you have to replace the entire headlight. If it was a running light issue you would think all 4 running lights would be out. You need a good electrical schematic and find the common connection.
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Old Oct 5, 2025 | 11:17 PM
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Originally Posted by kodpkd
What is in common with the two lights that are out. Very strange. Normally if a light goes out inside the headlight, you have to replace the entire headlight. If it was a running light issue you would think all 4 running lights would be out. You need a good electrical schematic and find the common connection.
I believe I fixed the issue I removed white side markers and then put OEM ones back the headlight was perfectly fine(edit: it turned on and then turned off after I had turned the car a bit later so it might be bad BCM)

Last edited by Jermbn; Oct 6, 2025 at 02:32 AM.
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