...check for !@V at the headlight sockets if 12V is there replace builbs. If still don't work look for bad ground. If both headlamps went out at same time it could be the relay. HDM module approx. $30 ...
gone bad. HDM Headlight Delay Module, real common problem, $40.00 at autozone. Original part # 15016745 Autozone #20601. in under the hood. Headlamp problems have caused a GM recall for these vehicles
Question about Buick LaCrosse
...HDM module, the headlight when't out and still drain the battery. noticed #40-P/TRAIN & #37-IGN 1 relay had a burnt spot on them, we have 8 relays are the same, i switch some relays around the ones ...
Question about Buick LaCrosse
...(in the fuse block under the hood) try exchanging it with the #45 cooling fan relay and see if your low beam lights work. If they do, the HDM relay (actually solid state module, not a relay) is
...check the fuse's an HDM relay #46 in the under hood fuse / relay box ? Headlamps The headlamp driver module (HDM) is an electronic module that provides electrical power to the vehicle low beam ...
Question about Cars & Trucks
module (HDM) is an electronic module that provides electrical power to the vehicle low beam headlamps. The HDM is controlled by a pulse width modulated (PWM) ground signal from the body control module
Question about Buick LaCrosse
module (HDM) is an electronic module that provides electrical power to the vehicle low beam headlamps. The HDM is controlled by a pulse width modulated (PWM) ground signal from the body control module
2006 buick lacrosse no low beams The low beams do not work and I replaced the HDM module and still does not work. What do I do next? Check headlamp relay, and low beam fuse.
Question about GMC Cars & Trucks
...HDM relay an for control from the BCM . Checking for codes in the BCM would also be a good idea. DTC B2575 Headlamp Control Circuit When the body control module (BCM) senses a request for headlamp or ...
check/ replacr the HDM(headlight driver module) relay in the main fuse box located under the hood near the battery. Check the high beam relay ? it mybe stuck??Here is a picture of the location, its #8
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