I was reading the recall on this. You had this issue before they replaced the LCM. The recall was because the LCM would fail resulting in no lights. I wonder if the previous owner had the unit fail and added a wire to turn the low beams on because the LCM was deemed too expensive or possibly the parts were not available? That would explain not having the high beams working as the LCM failure only shut off the headlights, the rest of the system still worked.
If you switch the lights on with the light switch do the high and low beams switch correctly or do the low beams still stay on when you select the high beams?
When you turn on the key it is only the low beam lights that come on correct, or can you switch low/high?
I attached a different version of the wiring diagram and the LCM circuit.
We will figure this out.
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Tuesday, April 24th, 2018 AT 12:57 PM