Dic reads charge system fault

Tiny
SAULFELDMAN
  • MEMBER
  • 1998 CHEVROLET CORVETTE
  • V8
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
I have a 1998 corvette battery volts have read12, 7 I have changed the altinator and it still reads 12.7 I have checked battery and altinator output with a volt meter and it reads 14.1 dic still reads change ststem fault I have also checked belst for tightness they are ok
Saturday, January 15th, 2011 AT 11:18 PM

1 Reply

Tiny
ERNEST CLARK
  • MECHANIC
  • 1,730 POSTS
I'm assuming you mean the bat reads 12.7 while the engine is running, not while off. If things were normal, the bat would read 12.7 when the engine is off, then jump to 13.5-14.5 with the engine running.

If the engine is running and it still reads 12.7 at the bat and 14.1 at alt, then your problem is in one of the cables/terminals/connectors. Probably on the positive side, but also check all grounds as well.

Use a voltmeter to check for any high resistance in a cable and all connectors for corrosion.
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Sunday, February 6th, 2011 AT 9:56 PM

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