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Post by legolen on Mar 9, 2019 11:16:11 GMT -5
I am reinstating my rear bumper assembly 73 charger. When I plug the rear assembly harness in the break lights don’t come on when depressing the break pedal. However the buzzer turns on when I press the break. I think it is the buzzer that reminds you you left tights on. Everything worked when I took the bumper off , I did not mess with any under dash wires. Any help would be appreciated. Thanks
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Post by odzking on Mar 9, 2019 11:28:17 GMT -5
Wow, that is a first for me. Although nothing surprises me anymore with these 3rd gens. First thing I would check is for bad ground or a short somewhere.
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DynoDave
CO-ADMINISTRATOR
Motown Mopar-Wizard
Posts: 11,150
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Post by DynoDave on Mar 9, 2019 20:24:13 GMT -5
I think it is the buzzer that reminds you you left tights on. Just kidding you. I'm a 2 fingered typer, so typos are my best friend. Hopefully Nacho will be by and have an idea on this. He's one of our electrical gurus.
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Post by Nacho-RT74 on Mar 9, 2019 20:38:50 GMT -5
thinking.
It's too obvious the brake light circuit is feeding the parking lights circuit ( buzzer works with parking lights not headlights really ), while parking light circuit is not working. I just can think at this moment black wire and dark brown &/or dark green are somehow crossed somewhere into the rear harness or kick panel plug
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Bob
Settling In
Posts: 193
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Post by Bob on Mar 10, 2019 6:02:53 GMT -5
Wow, that is a first for me. Although nothing surprises me anymore with these 3rd gens. First thing I would check is for bad ground or a short somewhere. My first guess would be the ground on the passenger side also.
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Post by Nacho-RT74 on Mar 10, 2019 7:19:31 GMT -5
unplug the 4 way molex plug for tail lights on trunk to check if still makes the same. That will discard the body rear harness.
then plug it back and unplug both rubber plugs linking both tail lights if stil makes the same. That could discard any of the tail lights. Those plugs can be interchanged and that could invers some functions. Even one is red and the other one is black, if dirty or painted, still coould be conected one on the other
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Post by legolen on Mar 10, 2019 15:43:59 GMT -5
So I unplugged the harness in the trunk and did not get the problem when depressing the break. I then plugged in just one tail light, driver side and it worked fine. As soon as I plugged in the second tail light the issue came back. I am thinking one or both of the plugs may be bad. Electrical really isn’t my thing, l’m better with sheet metal. Any suggestions before I cut the plugs off and wire them together? Thanks again you all are a great help.
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Post by legolen on Mar 10, 2019 15:48:13 GMT -5
I also tried switching the plugs red to black and still had same problem as when red to red and black to black.
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Post by Nacho-RT74 on Mar 10, 2019 17:09:20 GMT -5
the good, you located where is the problem, now need to check what exactly is the problem
remove passenger side tail light bulbs ( brake/positioning ones, back up bulb can stay there ) to check if something changes
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Post by legolen on Mar 10, 2019 17:55:35 GMT -5
Thanks for the advice I will try later this week and let you know how it turns out.
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