Fault Codes/Multiquip/8135Multiquip8135UnclassifiedGeneralWhat This Code MeansTrip GB; Block; Trip + StopPossible Causes•Ground Failure•Ground Open fail•Ground Close Fail•Ground Position Fail•BB Measurement FailureRelated Multiquip Fault Codes8291ABSENCE OF REAGENT DOSING8133CANBUS COMM ERROR8131DEF LOW!8124DERATE CONDITION EXISTS7940E-STOP SD ACTIVE7875EATS ERRORBrowse all Multiquip fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 8135 on your specific Multiquip unit — cited to the OEM manual, not a forum guess.TRY IT FREE