99 Mazda Protege alternator over charging

Tiny
BRINGTWEETY
  • 1999 MAZDA PROTEGE
  • 109 MILES

I have replace the alternator now about 6 times in less then 3 months with also a new battery every time.

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Thursday, December 29th, 2011 AT 4:17 AM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,276 POSTS

Is the voltage regulator part of the alt? How many volts is it putting out?

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Thursday, December 29th, 2011 AT 4:44 AM
Tiny
RASMATAZ
  • MEMBER

Could be the computer controlled of the alternator field generation circuit

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Thursday, December 29th, 2011 AT 5:36 AM
Tiny
ELDONGO
  • MEMBER

Offcourse a chip ! I look at the voltage level for both of this alternator wires, blu/whi and gr/whi in a good operating system and it showed.650mv while the alt output was at 14.0v in my car I read 2.4v in the gr/whi and 0.00 out in my whi/blue.
I will check the wiring to the module in the gr and to the instrument cluster charge warning lite for the whi/blue otherwise I will replace the controler board

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Friday, May 18th, 2012 AT 8:36 PM

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