STEP 1. Perform the continuity check of the fuse between the on board charger/DC-DC converter (S terminal) connector and the 12V starter battery.
STEP 2. Check of open circuit and damage in S line between on board charger/DC-DC converter connector and 12V starter battery.
STEP 3. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.