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Alternator not charging

Tiny
THEUNIS
  • MEMBER
  • 1998 MAZDA PROTEGE
  • 4 CYL
  • 2WD
  • MANUAL
  • 10,000 MILES
Tested alternator passed, new battery, checked fuses, alternator wont charge. Checked wires to plug into alternator one shows 3 volts with vehicle running other shows nothing.
Saturday, November 2nd, 2019 AT 1:51 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. More than likely you have a PCM issue at this point. The PCM contains the voltage regulator for this vehicle so here is a test that should confirm this. However, worst case I would put a PCM in it and go from there.
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Saturday, November 2nd, 2019 AT 8:09 PM

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