HYBRID CONTROL SYSTEM, Diagnostic DTC:P3245-203

DTC Code DTC Name
P3245-203 Short in Inverter Circuit

DESCRIPTION

For a description of the inverter, Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P3245 203 Malfunction (short circuit) in the generator inverter inside the inverter with converter assembly

  • Inverter with converter assembly

  • Generator cable

  • Hybrid vehicle transmission assembly

CAUTION / NOTICE / HINT

Note


  • DTC P3245-203 is stored after any of DTCs P0A7A-122, 130, 322, 324, 325, 517, 518, 809, 810, and 811 are stored. After troubleshooting and repairing DTC P3245-203, be sure to troubleshoot all the other DTCs.

  • The generator cable and hybrid vehicle transmission assembly may be affected depending on the vehicle operating conditions if a short occurs in the inverter with converter assembly. If DTC P3245-203 is output, inspect the generator cable and hybrid vehicle transmission assembly and replace the defective parts.

  • After completing the repair, test-drive the vehicle at a speed of approximately 40 km/h (25 mph) for 1 minute and check that DTC P0A92-261 (Hybrid Generator Performance) is not output. If DTC P0A92-261 (Hybrid Generator Performance) is output, replace the hybrid vehicle transmission assembly.

PROCEDURE


  1. CHECK HYBRID VEHICLE TRANSMISSION ASSEMBLY (MG1)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Remove the service plug grip Click here.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Disconnect the generator cable and motor cable from the inverter with converter assembly.

      Tech Tips

      For the removal and installation procedures related to the generator cable and motor cable, Click here.

    3. Check MG1 for an interphase short using a milliohmmeter.

      A000WF5E01
      *1 Generator Cable
      *2 for LHD:
      *3 for RHD:
      *4 Shielded Wire Ground

      1. Using a milliohmmeter, measure the resistance according to the value(s) in the table below.

        Tech Tips

        If the MG1 temperature is high, the resistance will vary greatly from the specification. Therefore, measure the resistance at least 8 hours after the vehicle is stopped.

        Standard resistance
        LHD
        Tester Connection Switch Condition Specified Condition
        U - V Power switch off 32.4 to 35.8 mΩ
        V - W Power switch off 31.3 to 34.6 mΩ
        W - U Power switch off 31.4 to 34.7 mΩ
        RHD
        Tester Connection Switch Condition Specified Condition
        U - V Power switch off 32.3 to 35.7 mΩ
        V - W Power switch off 31.2 to 34.5 mΩ
        W - U Power switch off 31.3 to 34.6 mΩ

        Tech Tips


        • To correct the variation of the measured resistance due to temperature, use the following formula to calculate the resistance at 20°C (68° F).


          • R20 = Rt / {1 + 0.00393 X (T - 20)}


        • The calculation is based on the following:


          • R20: Resistance at 20°C (68° F) (mΩ)

          • Rt: Measured resistance (mΩ)

          • T: Temperature when the resistance is measured (° C)

    4. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

      Note

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      U - Body ground and shielded wire ground Power switch off 100 MΩ or higher
      V - Body ground and shielded wire ground Power switch off 100 MΩ or higher
      W - Body ground and shielded wire ground Power switch off 100 MΩ or higher

    NG

    CHECK GENERATOR CABLE Click here

    OK

  2. REPLACE INVERTER WITH CONVERTER ASSEMBLY


    1. Replace the inverter with converter assembly (See page for LHD, Click here for RHD).


    NG

    CHECK DTC OUTPUT (HV) Click here

  3. CHECK GENERATOR CABLE


    1. Remove the generator cable from the hybrid vehicle transmission assembly. Click here

    2. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

      A000WOCE01
      *1 Generator Cable
      *2 for LHD:
      *3 for RHD:
      *4 Shielded Wire Ground

      Note

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      U - Shielded wire ground Power switch off 100 MΩ or higher
      V - Shielded wire ground Power switch off 100 MΩ or higher
      W - Shielded wire ground Power switch off 100 MΩ or higher
      U - V Power switch off 100 MΩ or higher
      V - W Power switch off 100 MΩ or higher
      W - U Power switch off 100 MΩ or higher

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition
      U - U Power switch off 1 Ω or less
      V - V Power switch off 1 Ω or less
      W - W Power switch off 1 Ω or less

    NG

    REPLACE GENERATOR CABLE Click here

    OK

  4. REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY


    1. Replace the hybrid vehicle transmission assembly Click here.


    NEXT

  5. REPLACE INVERTER WITH CONVERTER ASSEMBLY


    1. Replace the inverter with converter assembly (See page for LHD, Click here for RHD).


    NEXT

    CHECK DTC OUTPUT (HV) Click here

  6. REPLACE GENERATOR CABLE


    1. Replace the generator cable Click here.


    NEXT

  7. REPLACE INVERTER WITH CONVERTER ASSEMBLY


    1. Replace the inverter with converter assembly (See page for LHD, Click here for RHD).


    NEXT

  8. CHECK DTC OUTPUT (HV)


    1. Check the other DTCs that were output together with DTC P3245-203.

      DTC No. Relevant Diagnosis
      P0A7A-122, 130, 322, 324, 325, 517, 518, 809, 810, 811 Generator Inverter Performance

      Note

      DTC P3245-203 is stored after any of DTCs P0A7A-122, 130, 322, 324, 325, 517, 518, 809, 810, and 811 are stored. After troubleshooting and repairing DTC P3245-203, be sure to troubleshoot all the other DTCs.


    NEXT

    GO TO DTC CHART Click here