Code No. P100D: Generator coil U-phase temperature too high
Code No. P100E: Generator coil W-phase temperature too high



The diagnosis code may be stored by some driving operations such as high load, low-speed driving, or overuse of cooling.

PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III CAN bus diagnosis


Q. Is the check result normal?

Go to Step 2.

Repair the CAN bus line.

STEP 2. Use M.U.T.-III to confirm a diagnosis code of other systems.


Check whether the PHEV-ECU stores a diagnosis code.

Q. Is diagnosis code stored?

Diagnose the system according to the stored diagnosis code.

Go to Step 3.

STEP 3. Power Drive Unit connector, Generator connector check


Visually check them for damage or water ingress.

Q. Is the check result normal?

Go to Step 4.

Repair the connector.

STEP 4. Coil temperature sensor resistance check


(1)Disconnect the power drive unit from the generator.
(2)Measure the resistance in the coil temperature sensor (U-phase and W-phase) between the generator terminals.
Terminal symbol
Normal
GTH1 - GTG1 (U phase)

    Approximately 400kΩ - 600kΩ at -20°C
    Approximately 140kΩ - 200kΩ at 0°C
    Approximately 55kΩ - 70kΩ at 20°C
    Approximately 23kΩ - 30kΩ at 40°C

GTH2 - GTG2 (W phase)

Q. Is the check result normal?

Go to Step 6.

Go to Step 5.

STEP 5. Check the U-phase or W-phase line between the power drive unit connector and the generator connector for short to earth or open circuit.


Q. Is the check result normal?

Go to Step 6.

Repair the harness.

STEP 6. M.U.T.-III data list


Drive the vehicle to check the data list below: (Refer to .)

Q. Is the check result normal?

Go to Step 7.

Replace the Generator. (Refer to .) Then go to Step 8.

STEP 7. Check whether the diagnosis code is stored again.


Check again if the diagnosis code is stored in the Generator Control Unit.
(1)Erase the stored diagnosis code.
(2)Power supply mode of electric motor switch: OFF
(3)Power supply mode of electric motor switch: ON
(4)Drive the vehicle.
(5)Check if the diagnosis code is stored.

Q. Is diagnosis code stored?

Replace the Power Drive Unit. (Refer to .) Then go to Step 8.

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How to Cope with Intermittent Malfunctions ).

STEP 8. Check whether the diagnosis code is stored again.


Check again if the diagnosis code is stored in the Generator Control Unit.
(1)Erase the stored diagnosis code.
(2)Power supply mode of electric motor switch: OFF
(3)Power supply mode of electric motor switch: ON
(4)Drive the vehicle.
(5)Check if the diagnosis code is stored.

Q. Is diagnosis code stored?

Return to Step 1.

This diagnosis is complete.