Fault Codes/Power Solutions International/563Power Solutions International563UnclassifiedGeneralWhat This Code MeansMalfunction Indicator Lamp (MIL) ON during active fault; Adaptive learn disabledPossible Causes•Battery voltage exceeds 33V for 3 seconds while engine is running or cranking•ECM detects system voltage greater than 33VRelated Power Solutions International Fault Codes652685342891 43371022336102332710253261027Browse all Power Solutions International fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 563 on your specific Power Solutions International unit — cited to the OEM manual, not a forum guess.TRY IT FREE