Question about 2003 Chevrolet Monte Carlo
Driving lights don't work, just head lights on all the time day and night
Posted by Anonymous on
Make sure you dont have headswitch on manual that will keep head lights on all the time.a bad automatic lamp relay will cause headlights stay on with engine off.
Posted on Dec 05, 2012
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Posted on Jan 02, 2017
Check the emergency brake pedal and make sure it is not on a bit. When the emergency brake are applied the daytime running light go out.
Posted on Jan 30, 2011
SOURCE: I have s10 1998 2.4l
Your headlamps are controlled by you Body Control Module (BCM) The FIRST thing I would do is scan the BCM for fault codes. It is possible that the DRL relay is stuck in the ON position, which would override your request for regular driving lights, or the BCM may not be receiving the signal from the headlamp switch that you are requesting regulat=r driving lights. The ONLY way to find out for sure is to check the data in the BCM and operate the switch and see if the BCM changes the status of the "Headlamp Request" or "Headlamp Switch" PID. There are two relays on the headlamp circuits, one is for the POWER side of the headlamps and the other is for the GROUND side of the headlamp circuits. The BCM controls the ground side through the Multifunction Switch (dimmer, wiper, turn signal switch).
The headlamp switch controls the Power side relay and also sends voltage to the BCM to tell it that it has turned the power on to the headlamp power relay.
In any case, replacing parts without scanning the BCM is the EXPENSIVE way to go about performing this repair.
Posted on Jun 18, 2011
my suggestion is that you check/ replacr the HDM(headlight driver module) relay in the main fuse box located under the hood near the battery.
Posted on Jul 30, 2011
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