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PCM fuse blows when ignition turned to on

Tiny
JUSTDON
  • MEMBER
  • 1999 DODGE STRATUS
  • 100,000 MILES
When we turn the ignition switch to ON, the 20 amp fuse under the hood blows. The fuse diagram says that it is the PCM, ASD fuse. There is another 10 amp fuse that says PCM, ABS. If the 10 amp fuse is removed, the 20 amp fuse doesn't blow. Of course, the car won't start either. We also found that if we removed either one of the two plugs to the PCM, the fuse will not blow. But if they are both plugged in, the 20 amp fuse blows. Any help would be greatly appreciated.
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Sunday, April 1st, 2012 AT 11:54 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Ok, from your description, it sounds like your pcm has an internal short. I suggest a shop to verify wiring before you spend all that money for a pcm.

Roy
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Sunday, April 1st, 2012 AT 11:56 PM
Tiny
JUSTDON
  • MEMBER
  • 150 POSTS
Thank you very much for such a fast response.
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Monday, April 2nd, 2012 AT 12:17 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good luck

Roy
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Monday, April 2nd, 2012 AT 12:21 AM

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