Fault Codes/Power Solutions International, Inc./1646Power Solutions International, Inc.1646UnclassifiedGeneralWhat This Code MeansMIL (Malfunction Indicator Light) ONPossible Causes•CAN Tx error (120 packets lost within 1 second)•Unpowered or improperly grounded CAN devices•Improperly terminated CAN2 network•CAN2 wire routing exposed to noise sources (such as ignition coils or spark plug coil wires)•Short circuits in CAN2 (+) and (-) wiresSuggested Actions1Verify that all CAN devices are powered and properly grounded2Verify that the CAN2 network is properly terminated3Check CAN2 wire routing with respect to noise sources (ignition coils, spark plug coil wires, etc.) and shield if necessary4Check CAN2 (+) and (-) wires for short circuitsRelated Power Solutions International, Inc. Fault Codes164816501627167316261674161621111615211216142135Browse all Power Solutions International, Inc. fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 1646 on your specific Power Solutions International, Inc. unit — cited to the OEM manual, not a forum guess.TRY IT FREE