Fault Codes/Power Solutions International/DTC 1173Power Solutions InternationalDTC 1173UnclassifiedGeneralWhat This Code MeansMIL-On (Malfunction Indicator Light active); Adaptive disabledPossible Causes•EPR CAN communication with the ECM is lost•No packets received within 500 msRelated Power Solutions International Fault CodesDTC 1552DTC 1612DTC 1028DTC 1613DTC 1026DTC 1614DTC 1025DTC 1615DTC 1022DTC 1616DTC 685DTC 1628Browse all Power Solutions International fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for DTC 1173 on your specific Power Solutions International unit — cited to the OEM manual, not a forum guess.TRY IT FREE