Question about 2004 Chevrolet TrailBlazer
When I start the car low beams will work. As I drive maybe a mile or two they will just turn off, I can flip the high beams on and they will work. I switch the high beams off and on and seems after driving for another mile or two the low beams will start working again.
Try swapping #45 cooling fan relay and #46 HDM (headlight driver module) relay in the underhood fuse block. These are solid state modules and are not like conventional relays.
Posted on Nov 21, 2008
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Posted on Jan 02, 2017
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