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Re: Daytime running light working fine but can not switch...
Pull the head light switch and check it for out put.Do you have high beams?Check the low beam headlight bulbs.If you have high beams,and low beam bulbs are good,replace the dimmer switch.
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Head light have two relays.one for daytime and one for normal night. the daytime switching the light to serial circuit and if one bulb is out down both Leigh quit working. Inspect your light high and low beam for normal operation . Inspect your fuses . Swap the daytime relay with identical one.and under the dash is module for daytime running light. inspect the red/black wire for ground from light switch and light blue/ yellow for power from 15A ECU-B fuse
good luck
There could be a fuse for each low beam light either under the hood or under the dash. If not, then prob both low beams are bad.
If you have daytime run lights, the following may be of help.
There is a daytime running light module that controls both low beams and the daytime running lights. The low beam bulbs may be OK. The high beams will work fine as they are not controlled through the module.
It may be possible to disable the daytime run lights by cutting the yellow wire going into the module and then connecting it to ground. Tape off the other end. This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya
i had the reverse problem, i had no lights. i disconnected thepositive batterypost,turned the ignition on and kept shorting it out to rebote the computer,then replaced it
A simple fix is to pull fuse number 15 in the fuse box under the hood.... (by the radiator... long black box about 3 inches wide by 12 inches long.) It should be a 15 amp fuse. This will not really fix the issue, but its a heck of a lot easier than the tracking down you might need to do. What? It could be a headlamp switch, a daytime runninglight module, or a short in the wire for the daytime running lights. This simple easy thing is to pull the fuse and see if that works for you now. (You will lose daytime running lights doing this. So determine if you need those first... legally or otherwise.)
Check the tail light bulbs, One may be shorted & feeding voltage to brake lights. Check sockets & wiring. Yes, the brake light switch is above the foot brake.
Dash lights were falsing ? I assume you mean pulsing .
driving lights come on ? daytime running lights or park lamps ,does the vehicle have daytime running lamps . Daytime running lamps module .
Daytime Running Lamps (DRL) Module (Headlamp Auto Control Module)
Mounted behind the radio and the HVAC control, left of the instrument panel compartment.
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