63TROUBLESHOOTING6) If F DEF Sensor has troubleBad contact of connector/ insert correctlyAre MAIN PCBConnector CN30 to CN76 insertcorrectly?Is F DEF Sensorunit normal?Is the voltage betweenMAIN PCB Connector CN30#4 (Orange) andREG1, HEAT SINK normal?Is the input voltage ofIC01 MICOM #77 normal?StartNOYESYESYESYESReplace temperature sensorNOCheck the contact of PCB & WireTerminal correctly.NO(0.6V > Measurement < 4.6V)Check the iced-solder, solder bridging,disturbed solder. Replace the PCBNONo trouble with PCB and temperature sensor.Recheck the bad contact of the connection.** Measuring point of resistance value according toSensor **F-DEF : CN30#4 ® CN76#1 measuring resistancevalue** 0ʃ: Short trouble / ʃ: Open troubleSensor MICOM/Connector numberVoltage measured between 4.6V ~ 0.6V.Measuring voltage of IC01 MICOM #77,CN30-"4"(Orange) and REG1, HEAT SINK fromPCB typical Ground part are similar.ª Check the measure on the SENSOR MARKING#2(R310) due to the SMD MICOMó Checking method of F DEF Sensor resistanceCN30#4(Orange) ® CN76#1(Gray)- Compare the temperature table after themeasure.DATA1.Temperature tableERROR CodeRefer to circuit diagram in the manualF DEF Connector Cn30#4(Orange) to REG1HEAT-SINK PCB common Groundtypical PCB GroundREG1 HEAT-SINKStartYESYESYESó Checking method of F DEF Sensor voltage- Measure the voltage of Sensor Check Point #2(IC01 MICOM #77)on PCB or CN30#4(Orange) ® REG1, HEAT SINK- Compare the temperature table after measurement. Measuringvoltage of CN30#4(Orange) ® REG1, HEAT SINK are asbelow
