2003 DAKOTA 3

  • Tiny
  • Bivco53
  • 2003 Dodge Dakota
  • 189,000 miles

2003 Dakota 3.9 SLT 4x4. While driving battery light comes on & engine runs till battery dies. Batt & alt checked out as good. Took to dealer & they ran electrical test & couldn't find any parasitic drains. Put full charge on batt & ran for approx 1 1/2 hrs till battery is drained. I unplugged connections on PCM & sprayed with contact cleaner & applied dialectic grease & reconnected. Drove for 2wks before battery light came on again. Is the PCM bad or is it another culprit. Thanks for any advice you could possibly send my way!

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Friday, February 1st, 2013 AT 3:03 PM

1 Reply

  • Tiny
  • Wrenchtech
  • Expert
  • 20,443 posts

The voltage regulator is incorporated into the PCM on that truck but check all your wiring, fusible links and fuses first.

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Friday, February 1st, 2013 AT 3:23 PM

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