APU has code 61 low or high batterie voltage

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dismag, Apr 27, 2024.

  1. dismag

    dismag Bobtail Member

    37
    3
    Jul 20, 2012
    0
    My apu won’t start and troping this code , I checked batteries cleaned terminals, checked fuses, cleaned connectors on alternator all good still same problem is anyone experienced something similar of maybe knows where to look for resolution?
     
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  3. 5UG

    5UG Light Load Member

    53
    46
    May 22, 2024
    0
    Ever find out what the problem was?

    My guess would be alternator or bad wire somewhere. Check the voltage on the battery terminal at the alternator.

    Hope you've got it all worked out by now!
     
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