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All lights & signals work fine, but on the.

Tiny
CARLSMILLER
  • MEMBER
  • 2001 ISUZU NPR
  • 290,000 MILES
All lights & signals work fine, but on the dash; the brake, brake booster, abs and battery lights remain on. The heat/air does not blow when turned on, and the radio does not work. The battery seems to be strong and they're not that old (2 months). The smaller 2 prong fuses are all ok. All the large fuses are good (that I can find), the alt. Is charging, al the lights will go out and everything works fine if I am going 50-55 mph or race the eng. Fairly high. Wat could it be?
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Monday, November 19th, 2012 AT 5:18 PM

4 Replies

Tiny
FAKHIR
  • MEMBER
  • 26 POSTS
Check out the dynemo, is that working good?
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Monday, November 19th, 2012 AT 5:25 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Did you perform a charging test on the alternator and what are the readings?
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Monday, November 19th, 2012 AT 9:05 PM
Tiny
MECHANIC7
  • MEMBER
  • 2 POSTS
14.2v 40amps 60amps under load.
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Wednesday, July 30th, 2014 AT 3:49 PM
Tiny
MECHANIC7
  • MEMBER
  • 2 POSTS
I am replying because I have the exact same problem all except my radio works.
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Wednesday, July 30th, 2014 AT 3:50 PM

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