Non-charging 87 900S (non-turbo) - Saab 900 Bulletin Board - Saabnet.com
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Non-charging 87 900S (non-turbo)
Posted by RonF (more from RonF) on Wed, 23 Aug 2006 15:44:38
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Battery light came on & wouldn't go off. Did the following checks:
1. Battery voltage across terminals: 11.96, 11.63 running.
2. Battery voltage alternator terminal B to ground with ignition off:11.93; D to ground w/ ignition on: 1.32.
3 Engine running: B to ground: 11.61; D to ground: 1.61
Bentley says #1 running should be 14.0
I think # 2 D to ground should be battery voltage - about 12.0.
Difference in #3 should not exceed 0.7.
Those are all the checks I could find in Bentley.
Does this point to bad alternator or could a voltage regulator fix this or something worse?
Neither owner's manual or Bentley shed light on this - there is a blank warning light to the left of the battery light, in between the rear window heater light and the battery light. What is this?
posted by 4.225.210...
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