Headlight low beam not working. Bulb and fuse are good.
Headlight low beam not working. Bulb and fuse are good.
On my 05' Crossfire the passenger side low beam just quit working. Changed the bulb and checked the fuse. Still doesn't come on. Double checked the old and new bulbs, both measure resistance with my multimeter, so they should be good. Measured the fuse in the dash fuse panel with the headlight switch on, voltage at both fuse terminal tops. Measured voltage at the bulb connector, only .7v there. Is there a relay somewhere for the headlights? I know there's the bcm relay box by the battery, does this manage headlight power as well?
First post here for me, but I've been viewing for about a year now. Thanks in advance for the assistance and thanks a ton for all the information here I've used this year!
First post here for me, but I've been viewing for about a year now. Thanks in advance for the assistance and thanks a ton for all the information here I've used this year!
Join Date: Jul 2009
Location: Central South Carolina
Age: 69
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Re: Headlight low beam not working. Bulb and fuse are good.
On my 05' Crossfire the passenger side low beam just quit working. Changed the bulb and checked the fuse. Still doesn't come on. Double checked the old and new bulbs, both measure resistance with my multimeter, so they should be good. Measured the fuse in the dash fuse panel with the headlight switch on, voltage at both fuse terminal tops. Measured voltage at the bulb connector, only .7v there. Is there a relay somewhere for the headlights? I know there's the bcm relay box by the battery, does this manage headlight power as well?
First post here for me, but I've been viewing for about a year now. Thanks in advance for the assistance and thanks a ton for all the information here I've used this year!
First post here for me, but I've been viewing for about a year now. Thanks in advance for the assistance and thanks a ton for all the information here I've used this year!
I am hoping you are using a ground separate from the wire at the headlight bulb connector? Check Illumination Control Module (ICM) pins 3 and 5 for the 12v (system voltage) heading to the bulbs when set for headlights to be on. If pin 3 is not hot and pin 5 is hot, you may need a new or replacement ICM module. If both pins 3 and 5 are hot, you have an open in the wiring harness from output pin 3 to the headlight connector. Hope this helps!
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Join Date: Jul 2009
Location: Central South Carolina
Age: 69
Posts: 5,842
Received 375 Likes
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Re: Headlight low beam not working. Bulb and fuse are good.
Re: Headlight low beam not working. Bulb and fuse are good.
My wife saw a Jeep and the engine bay was so packed with pine cones that the engine was not visible, two garbage cans of cones were removed from it. The owner never lifted the hood and just said it was running rough when he drove it into the dealership.
Re: Headlight low beam not working. Bulb and fuse are good.
Conclusion: My open circuit is in the headlight assembly.
How difficult is the headlight assembly to open up? I already understand the difficulty of removing it, as I had to adjust the driver side a few months ago from the under bolts. It required removing the inside fender wall.
Re: Headlight low beam not working. Bulb and fuse are good.
Saves me a day of work and no risk of screwing up the assembly. Great advice! Thanks!
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robertms49
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10-31-2012 06:50 AM
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