2004 Jeep Grand Cherokee electrical issues

Are you having electrical issues with your 2004 Jeep Grand Cherokee?  --lost power to door panel controls, power windows not operating, all interior lights are staying on, power door locks work sometimes and other times they don't?

More than likely its a broken, stranded wire feeding the driver's door control panel.  Open the door and pull the black rubber boot off the wiring harness inside the hinge area.  Check inside the rubber boot, looking for a broken stranded wire.  More than likely its going to be a black #12 AWG stranded wire.  The stranded wire choice the manufacturer decided to use - #12AWG with stiff strands, are too large and not flexible enough for the application.  Therefore not flexible enough to withstand continuous opening and closing of doors through the years.  The wire chosen by engineers should have been of a finer strand count, in my opinion, or altogether consisting of a different technology to get power to the door control.  But!!-- we all know the consumers are part of their experiments.  Just look at Arc Fault Protection circuit breakers in homes.

Anyway...just splice into with a fresh piece of #12 stranded wire using wirenuts there at the door side of the break.  Install a ziptie--tight, just below the wire nut to keep strain off the wirenut connection.  Then run the remainder of the wire through the rubber boot back into the car interior.  Make that second connection inside, just under the dash, in the vicinity of the hood opening lever.  This way there will only be one connection in the hinge area.  Less likely to become problematic again.  Wire tie it up, leaving a little slack in the wire to accommodate movement needed during the action of the door. 

Check your controls...guaranteed you'll have control power restored.  Cheers!! My headache has been your gain.