- THÔNG TIN MÃ LỖI - KIỂM TRA BẰNG MÁY CHẨN ĐOÁN - KIỂM TRA BẰNG SƠ ĐỒ MẠCH ĐIỆN - KIỂM TRA CẢM BIẾN
Page 11/4/2012 9:50:37 PMhttp://kia-hotline.com/Main/Viewer/content.asp?IsPrint=true&vehicletype=Passenger&mfrcode=KM&area=KME&langcode= . 2009 > G 1.1 SOHC > Steering > Electronic Power Steering > Language Component LocationGeneral DescriptionA torque sensor, installed in the middle of steering column, is one unit composed of a main sensor and sub sensor. When the steering wheel is turned, the torsion baris twisted in proportion to load of the wheel, and the assembled shaft turns as well. At this moment, due to twist of shaft, a change in the magnetic field is generated inmain sensor coil surrounds the shaft and in the sub-sensor coil which is inside torque sensor. The change in current produced by this process is input to the EPS CM.With a change of input sensor signal current, EPS CM determines driver’s steering direction then, comparing current differences between the two sensors, the EPSCM determines whether main sensor is open/short. The Torque sensor can be damaged during disassembly of the sensor. You must disassemble or remove thesensor when removing or replacing the assembly.DTC DescriptionIf the torque sensor creates similar sensor signal outputs in main sensor and sub sensor. This DTC code is set when the EPS CM compares the output signal currentfrom main and sub sensor, and the current differences between the two sensors are too wide, or when the main sensor and sub-sensor signals vary too dramatically,due to major differences between standard and instant errors in the output signals, when power is supplied to torque sensor.DTC Detecting ConditionItem Detecting Condition Possible causeDTCstrategy●Currentcheck● Open/short inmain signalcircuit● Open/short in subsignal circuit● Contactresistance inconnections.● FaultysensorEnableconditions●Torquesensorvoltage≥ 7.0 VThresholdvalue● [Mainsensor -Subsensor]> 0.75mA or[Averageerrorvalue -Momenterrorvalue]andMain &Subvalue >0.5 mADiagnosistime●1secfailsafe● Motor :OFF● Relay :OFF● Fail lamp: ON●Restorationcondition :Power"OFF"Schematic DiagramSignal Waveform Page 21/4/2012 9:50:37 PMhttp://kia-hotline.com/Main/Viewer/content.asp?IsPrint=true&vehicletype=Passenger&mfrcode=KM&area=KME&langcode= .Fig.1) When turning steering wheel to right : Check whether signal voltage rises to maximum 4V based on 2.5V and main sensor signal is the same as sub sensorsignal. [Main sensor - Sub sensor] < 0.75 mAFig.2) When turning steering wheel to left : Check whether signal voltage descends to maximum 1V based on 2.5V and main sensor signal is the same as sub sensorsignal. [Main sensor - Sub sensor] < 0.75 mA . Page 11/4/2012 9:50:37 PMhttp:/ /kia- hotline.com/Main/Viewer/content.asp?IsPrint=true&vehicletype=Passenger&mfrcode=KM&area=KME&langcode=.... FaultysensorEnableconditions●Torquesensorvoltage≥ 7.0 VThresholdvalue● [Mainsensor -Subsensor]> 0.75mA or[Averageerrorvalue -Momenterrorvalue]andMain &Subvalue >0.5 mADiagnosistime●1secfailsafe●