JCB 444 Engine Fault Code ListBy mlkfdo / January 14, 2022 FAULT CODEE001E002E004E008E009E010E011E012E013E014E015E017E018E023E024E027E036E040E041E047E048E049E051E052E055E068E069E076E078E080E082E083E085E089E090E091E095E096E097E098E104E113E114E119E123E126E127E129E130E133E134E135E172E183E202E203E204E205E700E701E702E703E704E708E710E711E712E713E714E716E717E718E719E720E722E723E724E725E726E727E728E729DESCRIPTIONEngine ECU WarningEngine speed (crankshaft position) sensor - data erratic, (target disc tooth signal missing)Fuel timing pressure sensor (ECU) circuit fault – voltage below normal or shorted low Inlet manifold air pressure sensor (TMAP) fault – voltage above normal or shorted highInlet manifold air pressure sensor (TMAP) fault – voltage below normal or shorted low Throttle pedal position sensor fault - voltage above normal or shorted highThrottle pedal position sensor fault - voltage below normal or shorted lowHand throttle position sensor fault - voltage above normal or shorted highHand throttle position sensor fault - voltage below normal or shorted lowEngine oil pressure switch fault - voltage above normal or shorted highEngine oil pressure switch fault - voltage below normal or shorted lowEngine coolant temperature sensor fault – voltage above normal or shorted highEngine coolant temperature sensor fault – voltage below normal or shorted lowInlet manifold air temperature sensor (TMAP) fault – voltage above normal or shorted highInlet manifold air temperature sensor (TMAP) fault – voltage below normal or shorted lowSensor supply voltage 3 circuit fault (+ 5v) – voltage below normal or shorted lowAdd Your HeaSensor supply voltage 3 circuit fault (+ 5v) – voltage above normal or shorted highVehicle speed sensor fault - data erraticVehicle speed sensor fault - data abnormal rate of changeVehicle speed sensor fault - data abnormal rate of changeFuel temperature sensor faultFuel temperature sensor fault – voltage below normal or shorted lowHigh pressure fuel solenoid valve number 1 fault – voltage below normal or shorted lowHigh pressure fuel solenoid valve number 1 fault – current below normal or open circuitHigh pressure fuel solenoid valve number 1 fault – valve not responding correctlyEngine control module (ECU) internal temperature sensor fault – voltage above normal or shorted highEngine control module (ECU) internal temperature sensor fault – voltage below normal or shorted lowInjector solenoid valve fault, cylinder 1 – current above normal or grounded circuitInjector solenoid valve fault, cylinder 3 – current above normal or grounded circuitInjector solenoid valve fault, cylinder 2 – current above normal or grounded circuitInjector solenoid valve fault, cylinder 4 – current above normal or grounded circuitInjector solenoid valve fault, cylinder 1 – current below normal or open circuitInjector solenoid valve fault, cylinder 3 – current below normal or open circuitInjector solenoid valve fault, cylinder 2 – current below normal or open circuitInjector solenoid valve fault, cylinder 4 – current below normal or open circuitEngine ECU fault – calibration memory problemSensor supply voltage 1 (+5V) fault - voltage below normal or shorted lowEngine fuel injection pump control valve (IMV) – voltage above normal or shorted highEngine fuel injection pump control valve (IMV) – voltage below normal or shorted lowFuel pump control module, CAN fault – pump not responding correctlyFuel pump control module idle fault – data erraticSensor supply voltage 2 fault - voltage above normal or shorted highSensor supply voltage 1 (+5V) fault - voltage above normal or shorted highWater in fuel detected – no fault data onlyWater in fuel indicator fault – voltage below normal or shorted lowInlet manifold air pressure sensor (TMAP) fault – data erraticPower supply fault – data erraticBattery voltage fault – data below normal levelBattery voltage fault – data above normal levelFuel pump delivery pressure - data above normal levelInjector metering rail pressure sensor fault - voltage above normal or shorted highInjector metering rail pressure sensor fault - voltage below normal or shorted lowEngine coolant temperature sensor fault - data erraticInjector metering rail pressure sensor - data erraticMinimum injector drive pulse drift – cylinder 3 – injector not responding correctlyMinimum injector drive pulse drift – cylinder 2 – injector not responding correctlyMinimum injector drive pulse drift – cylinder 4 – injector not responding correctlyMinimum injector drive pulse drift – cylinder 1 – injector not responding correctlyHigh pressure fuel pump delivery pressure - data below normal levelHigh pressure fuel solenoid valve number 1 fault – data erraticHigh pressure fuel pump delivery pressure - data below normal levelHigh pressure fuel pump delivery pressure - fault existsEngine knock sensor fault – abnormal pulse width or frequencyEngine control module main relay fault – relay not responding correctlyIntake air heater relay 1 fault - voltage above normal or shorted highIntake air heater relay 1 fault - voltage below normal or shorted lowIntake air heater relay 1 fault - current below normal or open circuitIntake air heater relay 1 fault - current above normal or shorted to groundCruise control set speed fault - mechanical system not responding or out of adjustment.Boost pressure validity – no fault, air pressure sensor data is plausibleInjector metering rail pressure faultEngine position sensor fault (camshaft sensor) – abnormal pulse width or frequencyEngine speed (crankshaft position) sensor fault – data erraticEngine speed (crankshaft position) sensor – data erratic (target disc gap signal missing)Auxiliary output 1 (temperature gauge or light) - voltage below normal or shorted lowAuxiliary output 1 (temperature gauge or light) - current below normal or open circuitAuxiliary output 1 (temperature gauge or light) - current above normal or shorted to groundWiring harness resistance too high or too low, cylinder 4Wiring harness resistance too high or too low, cylinder 2Wiring harness resistance too high or too low, cylinder 1Wiring harness resistance too high or too low, cylinder 3Engine injector bank 1 (cylinders 2 and 4) – ECU faultDETAILSCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheckCheck
