STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other system DTC is set.
STEP 2. Check of short to power supply circuit in DCSW line between PHEV-ECU connector and on board charger/DC-DC converter connector.
STEP 3. Perform the continuity check of the high voltage fuse inside the REMCU.
STEP 4. Check of open circuit and damage in P line and N line between on board charger/DC-DC converter connector and REMCU connector.
STEP 5. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.