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'99 Dakota Strange Electrical Problems

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'99 Dakota Strange Electrical Problems

  #1  
Old 03-13-2019, 04:35 PM
J7Pines
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Default '99 Dakota Strange Electrical Problems

I've got a 1999 Dodge Dakota Sport 4x4 Extended Cab w/ the 5.2L. I've had some minor electrical issues with it, like cab lights periodically flashing and locks locking/unlocking when the door is open and continue to do so until the door is shut.
The issue that just started today (03/13/19) is the locks are stuck down and can't be unlocked by hand, cab lights won't turn on, dash lights are ON if the headlights/parking lights are OFF and vice versa if I turn the headlights ON dash lights turn OFF. Fog lights do not work at all, neither do my turn signals, but the turn signal indicators on the dash are stuck on, even with the key off. Brake/reverse lights work just like normal except for my 3rd brake light which is stuck on, even with the key off. Cab blower fan doesn't work either. Aftermarket stereo works w/o issue.
All fuses and relays appear to be good, battery has a strong charge, solid battery connection.
I'm really stuck here, not sure what it might be or where to start.

-Josh
 
  #2  
Old 03-13-2019, 05:02 PM
XSubaruJeepDude
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Originally Posted by J7Pines View Post
I've got a 1999 Dodge Dakota Sport 4x4 Extended Cab w/ the 5.2L. I've had some minor electrical issues with it, like cab lights periodically flashing and locks locking/unlocking when the door is open and continue to do so until the door is shut.
The issue that just started today (03/13/19) is the locks are stuck down and can't be unlocked by hand, cab lights won't turn on, dash lights are ON if the headlights/parking lights are OFF and vice versa if I turn the headlights ON dash lights turn OFF. Fog lights do not work at all, neither do my turn signals, but the turn signal indicators on the dash are stuck on, even with the key off. Brake/reverse lights work just like normal except for my 3rd brake light which is stuck on, even with the key off. Cab blower fan doesn't work either. Aftermarket stereo works w/o issue.
All fuses and relays appear to be good, battery has a strong charge, solid battery connection.
I'm really stuck here, not sure what it might be or where to start.


-Josh
Hey Josh.
Im going to go out on a limb and guess that the problems you mentioned come from multiple sources.
*With regard the blower. it may be a bad motor or blower relay
*The cab lighting is a issue often reported and often associated with the dimmer control unit or switch. this may also be connected to your fog light issue. whether that be a column unit or dash mounted unit, both have been reported as causing issues
* The door lock issue sounds like , to me anyway, a RELAY issue. the door lock relays cant be visibly inspected they must be tested with a multimeter. OR you could try pulling the power door relay and popping it against something hard and then reinserting it and see if you notice a difference. OR you could possibly have a wiring harness grounding issue under the dash. This sometimes happens when after market electronics are not installed correctly.
Hope these suggestions help.
 

Last edited by XSubaruJeepDude; 03-13-2019 at 05:19 PM.
  #3  
Old 03-13-2019, 05:47 PM
J7Pines
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Thanks for responding here. The thing that really throws me for a loop is all this started happening at the same exact time. I started my truck to go to work this morning and instantly all this happened. I haven't done anything to have caused this all of a sudden, although I assume it's possible something like a ground came loose and caused all the problems at the same time or in a short sequence.
I'll double check all my relays but I think they're fine.
I guess my next step will be checking grounds. Any additional info or tips are much appreciated.
 
  #4  
Old 03-13-2019, 06:45 PM
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Make sure the alternator has good output, and the battery is up to snuff.
 
  #5  
Old 03-13-2019, 07:54 PM
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See if a reset helps. Pull your neg battery cable and turn your key to start position for about five seconds.
 
  #6  
Old 03-14-2019, 02:17 AM
tonypilot7
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Since everything started acting up all at once, I would suspect a bad ground or plug somewhere. If you have the wiring schematic, I would start with checking the common grounds to see if there is a ground or maybe a single plug that all those systems go through.

My second guess would be a failing CTM but I am not sure if it controls all the systems you listed..
 

Last edited by tonypilot7; 03-14-2019 at 02:24 AM.
  #7  
Old 03-14-2019, 06:22 PM
J7Pines
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Originally Posted by Dodgevity View Post
See if a reset helps. Pull your neg battery cable and turn your key to start position for about five seconds.
Attempted a reset a couple times with no luck. Working on going through my grounds, we'll see what I can find.

 

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