Question about GMC Cars & Trucks
Jeff is right . New systems are so complex and if not careful you can do even more damage testing systems without a thorough knowledge of their operations .
Posted on Sep 28, 2018
What ? you looking for a magical fix . Never happen .darling . take it to a qualified repair shop. You'll never find the problem this way . Testing electrical circuits , checking for DTC'S - diagnostic trouble codes etc... is only way . You should go on the pay line .
The park, tail and marker lamps, including the license lamps, are turned on when the headlamp switch is placed in the PARK or HEAD position. The headlamp and panel dimmer switch supplies a ground signal to the BCM on the park lamps switch on signal circuit. The underhood fuse block supplies battery positive voltage to both the park lamp relay switch contacts and the park lamp coil circuit. The body control module (BCM) provides a ground or control circuit to the park lamp relay coil circuit. When the park lamps are turned on the BCM energizes the park lamp relay. Current flow is from the park lamp relay to these fuses in the body fuse block:
Would like to know what you expect to hear ,other then what i told you ? Any trained professional technician is going to tell you what i already told you . I have 30 + years working for general motors . Blown fuse means short circuit . The fuse that blows is a power supply for the BCM , the BCM supply's B+ voltage to the lighs you have not working . The BCM or the wiring is shorted .
Posted on Sep 27, 2018
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Posted on Jan 02, 2017
SOURCE: # 4 fuse blew out,
I KNOW YOU HAVE AN ELECTRICAL SHORT.WAS AN ALARM INSTALLED OR ANY OTHER TYPE OF ACCESSORY? CHECK WITH DODGE TO FIND OUT ABOUT A RECALL.IF SOMETHING WAS INSTALLED, TAKE IT BACK THERE TO STRAIGHTEN IT OUT IF NOT HAVE A AUTO TECHNICIAN CHECK IT FOR YOU.
Posted on Dec 27, 2008
It wouldn't be a fuse if that's the only light that's not working, I believe all of the parking lights are on the same fuse. It's most likely a bad ground or corrosion inside the socket where the bulb makes the electrical connection. So check the socket to make sure it has no corrosion, if it does, clean it up and apply some dielectric grease (available at any parts store) to prevent future corrosion, and check for a loose or broken ground wire.
Posted on Apr 13, 2009
The licence plate lights are in the same line as your tail light wiring assembly. I assume your tail lights are working or you would have got a ticket for that. The wire is either cut, broken or unhooked from the tail light wires (which usually are brown). If you can not find the problem, you can always run a new wire to the tail light wire from your licence plate wire. Then they should work.
Your other problem is that the license plate ground is rusty & not grounding, which would also not let them work, so you should probably check that first. Rick
Posted on Apr 14, 2009
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