METER / GAUGE SYSTEM FC System Indicator Malfunction

DESCRIPTION

In this circuit, the combination meter assembly receives FC system indicator signals from the EV control ECU via the CAN communication system. The combination meter assembly displays the FC system indicator based on the data received from the EV control ECU.

WIRING DIAGRAM

A01MFM4E23
*1 EV Control ECU
*2 Combination Meter Assembly
*3 CAN Communication Line

CAUTION / NOTICE / HINT

Note

When it is necessary to replace the combination meter assembly, be sure to replace it with a new one.

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Check for DTCs.

      for LHD: Click here

      for RHD: Click here

      OK
      No DTCs are output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FOR DTC (HYBRID CONTROL SYSTEM)


    1. Check for DTCs.

      Click here


      Powertrain > EV > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO HYBRID CONTROL SYSTEM Click here

    OK

  3. READ VALUE USING GTS (HV SYSTEM INDICATOR)


    1. Using the GTSs, read the Data List.

      Click here


      Body Electrical > Combination Meter > Data List
      Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
      HV System Indicator FC system indicator value Min.: -100 %, Max.:511 % -100 to 511 % -

      Body Electrical > Combination Meter > Data List
      Tester Display
      HV System Indicator
      OK
      FC system indicator value displayed on the GTS is almost the same as HV system indicator indication.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO HYBRID CONTROL SYSTEM Click here

    OK

  4. CHECK COMBINATION METER ASSEMBLY


    1. Replace the combination meter assembly.

      Click here

    2. Check that the operation of the FC system indicator returns to normal.

      OK
      The operation of the FC system indicator returns to normal.
      Result
      Proceed to
      OK
      NG

    OK

    END (COMBINATION METER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE EV CONTROL ECU Click here