2003 Pontiac Trans Am Trouble Code

2003 PONTIAC TRANS AM
42,700 MILES • V8 • 2WD • AUTOMATIC
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FORTBRAGGSOLDIER
  • MEMBER
  • 2 POSTS
I have a diablosport predator diagnostic tool and i periodically check for any trouble codes, recently ive been getting the trouble code, "P1637 can link ECM/ABS control module circuit networks", i am trying to figure out exactly what problem is causing this trouble code and if it is a serious problem?
Apr 15, 2010 at 6:25 PM
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BLUELIGHTNIN6
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 16,542 POSTS
DTC P1637: Output Driver Module Malfunction


May just be intermittent , try erasing codes and see if it comes back. If so, then you will need to check out the wiring at the PCM and the wiring of the alternator. Also have alternator itself tested.
Apr 15, 2010 at 6:52 PM
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