HYBRID CONTROL SYSTEM OPERATION HISTORY DATA


  1. OPERATION HISTORY DATA

    Tech Tips

    The hybrid vehicle control ECU records inappropriate operations performed by the driver and the number of abnormal conditions that have been input to the ECU as operation history data.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG) and turn the tester on.

    3. Select the following menu items: Powertrain / Hybrid Control / Data List.

    4. Select the menu to view the number of inappropriate operations or controls that have been effected.

      Tech Tips


      • LATEST OPER: Among the past occurrences, the number of inappropriate operations or controls that have been effected during the most recent 1 trip detection.

      • LATEST TRIP: The number of trips after the occurrence of LATEST OPER.

      • BEF LATST OPER: The number of occurrences during the trip previous to the LATEST OPER.

      • BEF LATST TRIP: The number of trips after the occurrence of BEF LATST OPER.

      Inappropriate operation and history data:
      Tester Display Count Condition
      Shift before READY Shift lever moved with READY indicator blinking
      N Range Control in Half Shift Shift position cannot be determined
      N Range Control by Busy Shift N position control effected due to frequent shifting operation
      Step Accelerator in N Range Accelerator pedal depressed in N position
      Auxiliary Battery Low Auxiliary battery voltage below 9.5 V
      HV ECU Intermittent Problems Instantaneous open circuit at IGSW terminal of hybrid vehicle control ECU
      MG2 Temp High Motor temperature rose above 168°C (334°F)
      MG1 Temp High Generator temperature rose above 168°C (334°F)
      MG2 (Motor) Inverter Temperature High Motor inverter temperature rose above 131°C (268°F)
      MG1 (Generator) Inverter Temperature High Generator inverter temperature rose above 131°C (268°F)
      Main Battery Low Voltage Battery state of charge dropped below 30%
      Resister Over Heat System main resistor overheated
      Coolant Heating Inverter coolant forecast temperature rose above 65°C (149°F)
      Converter Heating Boost converter temperature rose above 120°C (248°F)
      Shift Backward Direction Shifted to R while moving forward or to D or B while moving in reverse
      Prevention Control of Staying Engine speed stays in resonance frequency band
      Accelerator and brake depressing Both accelerator and brake pedals depressed
      Oil Temperature Low

      • Engine did not start when driving using MG2.

      • Engine runs continuously to maintain specified ATF pressure.
      ATF Over Heat ATF temperature is equal to or higher than specified value