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. M.U.T.-III other system diagnosis code


Check if a chassis number-related diagnosis code is stored in the PHEV-ECU.

Q. Is diagnosis code stored?

Diagnose the system according to the stored diagnosis code.

Replace the power drive unit. (Refer to .) Then go to Step 2.

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


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

Q. Is diagnosis code stored?

Return to Step 1.

This diagnosis is complete.