HYBRID CONTROL SYSTEM DTC CHECK / CLEAR


  1. CHECK DTC (HYBRID VEHICLE CONTROL ECU)


    1. Connect the intelligent tester to the DLC3.

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

    3. Turn the intelligent tester ON.

    4. A000ZUFE01
      Example
      *1 Powertrain
      *2 Hybrid Control

      On the System Select screen, enter the following menus: Powertrain / Hybrid Control / DTC.

    5. Read DTCs of the HV control system.

  2. CHECK FREEZE FRAME DATA AND INFORMATION


    1. A000Z3PE18
      Example
      *1 Select DTC

      If a DTC is present, select that DTC in order to display its freeze frame data.

    2. A000UGUE06
      Example
      *1 INF Code

      Read freeze frame data recorded when the DTC was set.

      Note

      Information code (INF code) is displayed in one of the columns, detail code 1 to 5, on the freeze frame data screen. Check the details by following the procedures in the following steps.

      Tech Tips

      In the case shown in the illustration, refer to troubleshooting for DTC P3138 and INF code 349.

    3. A000UGUE07
      Example
      *1 INF Code
      *2 Select
      *3 Details

      Read the information.


      1. Select Detail Information beneath Detail Code which has an INF code.

        Tech Tips

        Detail Code 2 has the INF code 349 in the illustration. In this case, Detail Information 2 should be selected.

      2. Press the "Details" key.

      3. A000Z3EE03
        *1 Example:

        Information is displayed as shown in the illustration.

  3. CHECK DTC (BUS CHECK)


    1. A000TZXE12
      Example
      *1 Bus Check

      On the System Select screen, select Bus Check.

    2. A000V5ME03
      *1 Example:

      On the Bus Check screen, select Communication Malfunction DTC, in order to read the DTCs for a communication error.

      Tech Tips

      If DTCs for the CAN communication system are present in addition to other DTCs, first troubleshoot and repair malfunctions in the CAN communication (See page for LHD, Click here for RHD).

  4. CHECK FOR DTCS (SYSTEMS OTHER THAN THE HYBRID VEHICLE CONTROL ECU)

    Tech Tips

    The hybrid vehicle control ECU maintains communication with other computers, including the ECM, battery ECU, skid control ECU, and power steering ECU. Therefore, if the hybrid vehicle control ECU outputs a warning, it is necessary to check and record the DTCs of all systems.


    1. If DTCs are present, check the relevant systems.

  5. CLEAR DTCS

    Note

    Clearing the DTCs will also clear the freeze frame data, information (See page ) and operation history data Click here.


    1. Connect the intelligent tester to the DLC3.

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

    3. Check that the shift lever is in the P position.

    4. A000Z3PE19
      Example
      *1 Clear

      Display the Hybrid Control / DTC screen and press the Clear key at the bottom right area of the screen.

      Note

      Clearing the DTCs will also clear the freeze frame data, information (See page ) and operation history data Click here.