At 07:01 PM 5/14/2011, Poppie Jagersand wrote: >My alternator is not charging. After various tests I found that the >voltage on the blue D+ wire to the alternator was 5V. I looked in >the alternator trouble shooting section in the Bentley manual. It >doesn't list the D+ voltage. Isn't it supposed to be 12V? Could >something be loading it down? (I already disconnected the fridge >relay which I believe also runs on this circuit.) It won't be +12 until the alternator starts charging. I can't get to mine now to check the voltage but +5 seems not unreasonable. Pending someone coming up with an actual reading, if your ALT light is the same brightness as usual then I think D+ is probably ok (when it does come up to [charging voltage] the ALT light will go out; in the meantime there's a resistor parallel to the light which is supplying maybe 100 ma to that terminal to allow the alternator to begin charging). Yrs, d |
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