Code No. P1B17: PHEV-ECU fails 4 (IGBT overheat due to null rotation torque)



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. 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.

Replace the REMCU. (Refer to .) Then go to Step 2.

STEP 2. Check whether the diagnosis code is stored again.


Check again if the diagnosis code is stored in the REMCU.
(1)Power supply mode of electric motor switch: ON
(2)Drive the vehicle.
(3)Check if the diagnosis code is stored.

Q. Is diagnosis code stored?

Return to Step 1.

This diagnosis is complete.