Code No. P0A50: Abnormal generator speed




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 if the diagnosis code is stored in the PHEV-ECU.

Q. Is diagnosis code stored?

Carry out troubleshooting for the PHEV-ECU.

Go to Step 3.

STEP 3. 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: ON
(3)Power supply mode of electric motor switch: OFF
(4)Power supply mode of electric motor switch: ON
(5)Drive the vehicle.
(6)Check if the diagnosis code is stored.

Q. Is diagnosis code stored?

Replace the Power Drive Unit. (Refer to .) Then go to Step 4.

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

STEP 4. 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: ON
(3)Power supply mode of electric motor switch: OFF
(4)Power supply mode of electric motor switch: ON
(5)Drive the vehicle.
(6)Check if the diagnosis code is stored.

Q. Is diagnosis code stored?

Return to Step 1.

This diagnosis is complete.