Fault Codes/Multiquip/8131Multiquip8131UnclassifiedGeneralWhat This Code MeansTrip GB; Block; Trip + StopPossible Causes•Ground Failure•Ground Open fail•Ground Close Fail•Ground Position Fail•BB Measurement FailureRelated Multiquip Fault Codes81338135812482917940ABSENCE OF REAGENT DOSING7875CANBUS COMM ERROR7874DEF LOW!7873DERATE CONDITION EXISTSBrowse all Multiquip fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 8131 on your specific Multiquip unit — cited to the OEM manual, not a forum guess.TRY IT FREE