2002 Pontiac Bonneville charging system

2002 PONTIAC BONNEVILLE
115,000 MILES • 6 CYL • FWD • AUTOMATIC
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JUDY85
  • MEMBER
  • 1 POST
After replacing the battery and alternor earlier this year, my Bonneville alternator indicator will frequently read that its not charging. After driving it awhile (30 min. or so) it will usually come back up to normal (about 14.) Occasionally, it will go back down, but once its up it usually stays. It almost always starts off in the non-charging mode. I've had the alternator and battery rechecked. No one can find a problem.
Any suggestions?
Thanks!
Oct 12, 2008 at 1:32 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Have the dash intergration module and PCM field generation on the PCM checked out-


https://images.2carpros.com/forum/automotive_pictures/12900_field_3.jpg

Oct 12, 2008 at 1:40 PM
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