Service and Repair Manual December 2023Deutz D 2.9 L4 Tier IV Engine Fault Codes136 GS™-3390 • GS™-4390 • GS™-5390 Part No. 1325652GTSPN = Suspect Parameter NumberFMI = Failure Mode IdentifierKWP = Keyword ProtocolSPN FMI KWP Description4766 0 1029 Physical range check high forexhaust gas temperaturedownstream (DOC)4766 1 1032 Physical range check low forexhaust gas temperaturedownstream (DOC)4768 2 1036 Sensor exhaust gas temperatureupstream (DOC); plausibilityerror4768 3 1044 Sensor error exhaust gastemperature upstream (DOC);signal range check high4768 4 1045 Sensor error exhaust gastemperature upstream (DOC)signal range check low4769 2 1026 Sensor exhaust gas temperaturedownstream (DOC); plausibilityerror4769 3 1034 Sensor error exhaust gastemperature downstream (DOC);signal range check high4769 4 1035 Sensor error exhaust gastemperature downstream (DOC);signal range check low523006 3 34 Controller mode switch; shortcircuit to battery523006 4 35 Controller mode switch; shortcircuit to ground523008 1 648 Manipulation control wastriggered523008 2 649 Timeout error in Manipulationcontrol523009 9 825 Pressure Relief Valve (PRV)reached maximun allowedopening count523009 10 833 Pressure relief valve (PRV)reached maximun allowed opentimeSPN FMI KWP Description523212 9 171 Timeout Error of CAN-Receive-Frame ComEngPrt; EngineProtection523216 9 198 Timeout Error of CAN-Receive-Frame PrHtEnCmd; pre-heatcommand, engine command523240 9 179 Timeout CAN-messageFunModCtl; Function ModeControl523350 4 565 Injector cylinder-bank 1; shortcircuit523352 4 566 Injector cylinder-bank 2; shortcircuit523354 12 567 Injector powerstage outputdefect523470 2 826 Pressure Relief Valve (PRV)forced to open; performed bypressure increase523470 2 827 Pressure Relief Valve (PRV)forced to open; performed bypressure shock523470 7 876 Maximum rail pressure in limphome mode exceeded (PRV)523470 11 831 The PRV can not be opened atthis operating point with apressure shock523470 11 832 Rail pressure out of tolerancerange523470 12 828 Open Pressure Relief Valve(PRV); shut off condition523470 12 829 Open Pressure Relief Valve(PRV); warning condition523470 14 830 Pressure Relief Valve (PRV) isopen523550 12 980 T50 start switch active for toolong523601 13 948 Sensor supply voltage monitor3 error (ECU)523603 9 126 Timeout Error of CAN-Receive-Frame AMB; AmbientTemperature Sensor