FC BOOST CONTROL SYSTEM DIAGNOSIS SYSTEM


  1. DESCRIPTION


    1. The FC boost control ECU has a self-diagnosis system. If the computer, FC boost control system, or a component is not working properly, the ECU records the conditions that relate to the fault.

      Tech Tips

      The master warning light will illuminate when the FC boost control system is malfunctioning.

    A01MGLWC01
    *A for LHD *B for RHD
    *1 READY Indicator *2 Master Warning Light
    *3 Multi-information Display - -

  2. FREEZE FRAME DATA

    The FC boost control ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the FC boost control system was warmed up or not, as well as other data recorded at the time of a malfunction.

  3. AUXILIARY BATTERY VOLTAGE

    If voltage is below 11 V, recharge or replace the auxiliary battery.

    Note

    After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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  4. DTC PRIORITY LEVEL AND TROUBLE AREAS

    When multiple DTCs are output, performing each diagnostic procedure in order of priority can lead to a more accurate diagnosis.

    5. DTC Order of Priority and Trouble Area
    DTC No. Detection Item Order of Priority
    1 2 3 4 5
    Microcomputer Malfunction Power Source Circuit Malfunction Communication System Malfunction Sensor and Actuator Circuit Malfunction System Malfunction
    P0560-117 System Voltage - ○ - - -
    P060B-450 Internal Control Module A/D Processing Performance ○ - - - -
    P1D06-450 U Phase IPM Overcurrent - - - - ○
    P1D07-450 V Phase IPM Overcurrent - - - - ○
    P1D08-450 W Phase IPM Overcurrent - - - - ○
    P1D09-450 X Phase IPM Overcurrent - - - - ○
    P1D0A-450 U Phase IPM Overheat - - - - ○
    P1D0B-450 V Phase IPM Overheat - - - - ○
    P1D0C-450 W Phase IPM Overheat - - - - ○
    P1D0D-450 X Phase IPM Overheat - - - - ○
    P1D0E-450 FVH (FC Converter Output Voltage)/VH Voltage Correlation - - - - ○
    P1D0F-450 FVC (Cell Monitor Voltage)/FVL (FC Converter Input Voltage) Correlation - - - - ○
    P1D10-450 U Phase IPM Circuit - - - - ○
    P1D13-450 V Phase IPM Circuit - - - - ○
    P1D16-450 W Phase IPM Circuit - - - - ○
    P1D19-450 X Phase IPM Circuit - - - - ○
    P1D1C-450 FVH (FC Converter Output Voltage) Over Voltage/Sensor Circuit - - - - ○
    P1D1D-450 FVH (FC Converter Output Voltage)/Over Voltage - - - - ○
    P1D1E-450 FC Converter Output Voltage Sensor Circuit Low - - - ○ -
    P1D1F-450 FC Converter Output Voltage Sensor Circuit High - - - ○ -
    P1D20-450 FVL (FC Converter Input Voltage) Low Voltage/Sensor Circuit - - - - ○
    P1D21-450 FVL (FC Converter Input Voltage)/Low Voltage - - - - ○
    P1D23-450 FC Converter Input Voltage Sensor Circuit High - - - ○ -
    P1D31-450 U Phase Reactor Current Sensor Circuit (Offset) - - - ○ -
    P1D32-450 U Phase Reactor Current Sensor Circuit Low - - - ○ -
    P1D33-450 U Phase Reactor Current Sensor Circuit High - - - ○ -
    P1D36-450 V Phase Reactor Current Sensor Circuit (Offset) - - - ○ -
    P1D37-450 V Phase Reactor Current Sensor Circuit Low - - - ○ -
    P1D38-450 V Phase Reactor Current Sensor Circuit High - - - ○ -
    P1D3B-450 W Phase Reactor Current Sensor Circuit (Offset) - - - ○ -
    P1D3C-450 W Phase Reactor Current Sensor Circuit Low - - - ○ -
    P1D3D-450 W Phase Reactor Current Sensor Circuit High - - - ○ -
    P1D41-450 X Phase Reactor Current Sensor Circuit (Offset) - - - ○ -
    P1D42-450 X Phase Reactor Current Sensor Circuit Low - - - ○ -
    P1D43-450 X Phase Reactor Current Sensor Circuit High - - - ○ -
    P1D46-450 U Phase IGBT Temperature Sensor Correlation - - - ○ -
    P1D47-450 U Phase IGBT Temperature Sensor Circuit Low - - - ○ -
    P1D48-450 U Phase IGBT Temperature Sensor Circuit High - - - ○ -
    P1D4B-450 V Phase IGBT Temperature Sensor Correlation - - - ○ -
    P1D4C-450 V Phase IGBT Temperature Sensor Circuit Low - - - ○ -
    P1D4D-450 V Phase IGBT Temperature Sensor Circuit High - - - ○ -
    P1D4F-450 Total Reactor Current/FC Current Correlation - - - ○ -
    P1D51-450 W Phase IGBT Temperature Sensor Correlation - - - ○ -
    P1D52-450 W Phase IGBT Temperature Sensor Circuit Low - - - ○ -
    P1D53-450 W Phase IGBT Temperature Sensor Circuit High - - - ○ -
    P1D56-450 X Phase IGBT Temperature Sensor Correlation - - - ○ -
    P1D57-450 X Phase IGBT Temperature Sensor Circuit Low - - - ○ -
    P1D58-450 X Phase IGBT Temperature Sensor Circuit High - - - ○ -
    P1D61-450 V Phase Reactor Temperature/Coolant Temperature Correlation - - - ○ -
    P1D62-450 V Phase Reactor Temperature Sensor Circuit Low - - - ○ -
    P1D63-450 V Phase Reactor Temperature Sensor Circuit High - - - ○ -
    P1D9F-450 Internal Control Module Voltage (+26V Power Source) - ○ - - -
    P1DAF-450 Internal Control Module Voltage (-5V Power Source) - ○ - - -
    P1DBF-450 Internal Control Module Voltage (5V Power Source) - ○ - - -
    P1DDA-450 U Phase Reactor Current Degradation - - - - ○
    P1DDB-450 V Phase Reactor Current Degradation - - - - ○
    P1DDC-450 W Phase Reactor Current Degradation - - - - ○
    P1DDD-450 X Phase Reactor Current Degradation - - - - ○
    P1DE0-450 U Phase Output Diode Circuit - - - ○ -
    P1DE1-450 V Phase Output Diode Circuit - - - ○ -
    P1DE2-450 W Phase Output Diode Circuit - - - ○ -
    P1DE3-450 X Phase Output Diode Circuit - - - ○ -
    P2511-450 FCDC CPU Circuit Intermittent No Continuity ○ - - - -
    U0293-450 Lost Communication with EV System - - ○ - -
    U1161-450 Lost Communication with FC System - - ○ - -