Code No. P1D26: Inside Temperature Abnormal,
Code No. P1D27: PFC Temperature Abnormal,
Code No. P1D28: Abnormal Temperature In Inverter Circuit 1,
Code No. P1D29: Abnormal Temperature In Inverter Circuit 2




TROUBLE JUDGEMENT


Check Condition
  • While the on board charger is allowed to be charged from the PHEV-ECU.
Judgement Criterion
    <Code No. P1D26>

    • The internal ambient temperature sensor detects the abnormal temperature.
    <Code No. P1D27>

    • The temperature sensor of the power factor correction circuit detects the abnormal temperature.
    <Code No. P1D28>

    • The temperature sensor 1 of the increasing voltage area detects the abnormal temperature.
    <Code No. P1D29>

    • The temperature sensor 2 of the increasing voltage area detects the abnormal temperature.

FAIL-SAFE AND BACKUP FUNCTION



  • The charge is stopped.

PROBABLE CAUSES



  • The cooling system is failed.
  • The on board charger/DC-DC converter is failed.

DIAGNOSIS PROCEDURE


STEP 1. Check the cooling system.



  • Check the overheating. [Refer to GROUP 54D - PHEV-ECU - Symptom Chart - EV system overheat (water cooling system) ]

Q. Is the check result normal?

Go to Step 2.
Repair

STEP 2. M.U.T.-III data list



  • Data List Reference Table (Refer to )

  1. Item 38: PFC temperature
  2. Item 39: Inverter temperature 1
  3. Item 40: Inverter temperature 2
  4. Item 41: Inside temperature

Q. Are the check result normal?

Go to Step 3.
Replace the on board charger/DC-DC converter.

STEP 3. M.U.T.-III diagnosis code.



  • Reconfirmation of diagnosis code.

Q. Is the diagnosis code stored?

Replace the on board charger/DC-DC converter.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).