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Old 01-30-2019, 11:10 AM
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crystalworks crystalworks is offline
Join Date: Jun 2014
Location: SA, TX
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Originally Posted by Attacking Mid View Post
Did you try plugging the right light into the left plug and vice-versa? That's how I isolated the fact I no problem with the wiring. The working light worked on either side.

That's what I would try first. Switch the entire light assemblies.

When I had this problem (still do, but bypassed the LCM with a relay) it turned out to be a fault with the ALC (headlight leveling). When the LCM detects a non-func ALC it will disable that low beam. High beams will work if memory serves but lows will not. I still have not corrected this problem as I bypassed it and haven't had time (desire) to dig into it.

There's a thread about both the issue and my bypass somewhere on here.
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