1997 Nissan Truck battery warning light (blinks fast depend

1997 NISSAN TRUCK
110,000 MILES • 4 CYL • 2WD • MANUAL
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AWKELLER
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Electrical problem. I've replaced the alternator and on my third one. Battery warning light and emergency brake light come on intermittently together (usually) - sometimes they stay on speadily, other times they blink and the speed of the "blinking" seems to depend on the rpm - the higher the rpm, the faster they blink. Any ideas as to what is causing these problems?? I think one minute it's the regulator, then I think it is the alternator!
Dec 8, 2008 at 3:16 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Have the alternator load tested this is the only way to find out-the voltage regulator is built-in the alternator-
Dec 8, 2008 at 3:50 PM
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