Unexplained electrical Phenomena

Jul 23, 2006 27 Replies

I have a 2002 Dodge Ram 1500 SLT. I shut the truck off everything was fine. I came back and unlocked the door and went to use the electric door locks. They would not work. Then I noticed a red light on in the instrument panel. This light turned out to be for a security system. The truck started fine I noticed then that the lights came on. Even though the switch was off. I began to drive and noticed I had no turn signals, I stopped and checked my break lights they also do not work. End results are: No instruments, no turn signals, no break lights, no interior lights, head lights and tail lights come on as soon as the engine starts. Any one have some help.



Have you checked for bad fuses and trouble codes?

I suspect a grounding problem here. Check all common grounds in dash area. When a ground opens up here, all kinds of strange thing can happen as it seeks a ground through alternate paths.

----------------- The SnoMan

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Next check for loose wire connectors, and/or loose grounds, bare wires etc. look for melted wiring insulation and anything that indicates a problem.

Chasing gremlins, you need to focus on grounds first then elsewhere rather than shooting blind here.

----------------- The SnoMan

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dude, you have really become like the shell answer man of the alt.autos.dodge.trucks. at least in your own mind.

is there any thread that you don't chime in on?

is there anything that you don't think you are an expert on?

is this like our kharma coming to roost? i mean are you like the reincarnation of all of the arrogant idiots that have stopped in here over the years?

Answer man, yes. But the correct answer's?????????

Gee, do ya think he has a 9 foot blade on his 1/2 ton?

I really wish that I hadn't read that while I was eating lunch. Cucumbers and onions going backwards thru the nasal channels is not good....

Denny

Did the dealer install provisions for an aftermarket alarm system?

The guys who go around the dealerships and install these systems often have minimal skill and knowledge and their sloppy wiring/splicing can cause all sorts of electrical gremlins.

Cukes and onions!! Breath ya can weld with.

Roy

Seeing that I am a electrical troubleshooter by trade grounding is where I did go next. The problem is that in order to get there you must remove all the dash components to get to them.

Dude, I was working on cars before you were likelu born and I have seen many many times want bad grounds can cause. When you have sudden multiple unrelated failures it is most likley a grounding isses because current will try to find another path to ground and do all kinda of strange things sometimes. I am trying to help him find a cure while you are just trying to shoot the messanger because you do not understand his message. BTW, I have a electrical and mech engineering background too do you?

----------------- The SnoMan

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Just heard from the dealership It is the computer module that handles the instrument panel they say

Shooting blind is exactly what you've chosen to do. You have eliminated from the list any observation of the wiring harness. If after finding it looking normal, then TESTING each malfunctioning component, not just for ground but for all circuits proper operation, is the next step.

Sadly, it took out the dash so the code could not be found.

That might work if he had 5.88:1 gears.

The driveline would be fine...

The lame frame and front suspention OTOH, would not.

JS

I agree. Sarcasm isn't obvious in print. Sorry for the confusion.

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