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Group 23 EMS2




TAD1640GE, TAD1641GE, TAD1642GE, TWD1643GE, TAD1641VE, TAD1642VE,

TAD1643VE, TAD1650VE




TAD1640GE, TAD1641GE, TAD1642GE, TWD1643GE TAD1641VE, TAD1642VE, TAD1643VE, TAD1650VEIntroductionImportantAbout this Workshop ManualSpare partsCertified enginesUse of non-original parts will result in AB Volvo Penta being unable to warrant thatRepair instructions WARNING!TorqueDimension Tightening torqueTorque-angle tighteningLock nutsStrength classesSealantGeneralLocation of engine signsThe sign above shows:The sign above shows:ToolsSpecial tools951 2636 999 8482 999 8534Technical dataControl unitSensor, water in fuelSensor, fuel pressureCamshaft sensor/flywheel sensorSensor, oil pressureCombined sensor, oil level/oil temperatureCombination sensor, charge air pressure/charge air temperatureSensor, coolant temperatureSensor, coolant levelSensor, crankcase pressureSensor, piston coolant pressureCombined air filter pressure and temperature sensorUnit injectorAlternatorStarterCAN (Controller Area Network)CIU (Control Interface Unit)DCU (Display Control Unit)DU (Display Unit)Input signalsOutput signalsCalculating amount of fuelCylinder balancingAltitude correctionDiagnostic functionSensor, water in fuel (11)Position sensor, camshaft (15)Oil pressure sensor (9)Speed sensor, flywheel (18)Charge air pressure/charge air sensor (3)Coolant temperature sensor (16)Fuel pressure sensor (10)Coolant level sensor (1)Oil level sensor / oil temperature sensor (12)Crankcase pressure sensor (13)Piston cooling pressure sensor (17)Air filter pressure sensor / air filter temperature sensor (4)Control module EMS 2Control Interface Unit (CIU)Unit injectorAlternatorStarterComponent locationLimit valuesLimit values, control module (EMS 2) TAD1640–1642GE, TWD1643GEOil temperatureOil pressureCoolant temperatureCoolant levelLimit values, control module (EMS 2) TAD1641–1643VE, TAD1650VEOil temperatureOil pressureCoolant levelRPMLimp-home value (emergency regulation value)Unit injector, replacingStarting with auxiliary batteriesFunction checkDiagnostic function for VODIAFault tracingDiagnostic functionMessage regarding disturbanceEffect on the engineOperationReading fault codes via Display Control unit (DCU)Erasing fault codes (DCU)Reading fault codes via the diagnosis lamp on instrument panel (CIU)Erasing fault codes (CIU)Electrical fault tracingGeneralFunctional check of wiring and connector blocksConnection problemsFunctional check of wiring and connector blocksCheck connections visuallyOpen circuitConnector resistance and oxidation.Splicing cables for cable connectorsCheck of combination sensor, charge air pressure/charge air temperatureCheck, charge air pressureCheck, charge air temperatureCheck of sensor, coolant temperatureCheck of sensor, water in fuelCoolant temperatureCheck of sensors, camshaft and flywheelChecking sensor, oil pressureCheck of oil pressure functionCheck of sensor, coolant levelChecking combined sensor, oil level/oil temperatureCheck of oil level functionCheck of oil temperature functionCheck of sensor, fuel pressureCheck of sensor, crankcase pressureChecking combined sensor, air filter pressure/airChecking air filter pressure functionChecking air temperature functionFault tracing unit injectorsFault symptomCauseFault tracing starter motor and cablingGeneralBrushesFunctional check of relayElectrical systemImportant information - electrical system1. Battery main switch4. Connecting extra equipmentTAD1640-1642GE, TWD1643GE with CIU, CAN based SAE J1939TAD1641-1643VE, TAD1650VE with CIU, CAN based SAE J1939NotesReport form

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