Fault Codes/Deep Sea Electronics/N/ADeep Sea ElectronicsN/AUnclassifiedGeneralWhat This Code MeansECU 'open circuit' alarmsPossible Causes•Warning lamps or equivalent resistors not connected to Perkins customer interface connector terminals 28, 29, 30, and 31Suggested Actions1Connect warning lamps to Perkins customer interface connector terminals 28, 29, 30, and 312Connect 220 Ω 5W resistors to terminals 28, 29, 30, and 31 as a suitable equivalent for warning lampsRelated Deep Sea Electronics Fault CodesOIL FILTER MAINTENANCE ALARMOIL SENDER OPEN CIRCUITMAGNETIC PICKUP OPEN CIRCUITXXX,XXX,XXXLOW OIL PRESSURE WARNINGLOW COOLANT WARNINGLOSS OF MAG. PICKUP SIGNALKW OVERLOADGENERATOR UNDER FREQUENCYGENERATOR OVER FREQUENCYFUEL FILTER MAINTENANCE ALARMEMERGENCY STOPBrowse all Deep Sea Electronics fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for N/A on your specific Deep Sea Electronics unit — cited to the OEM manual, not a forum guess.TRY IT FREE