STEP 1. Scan tool (M.U.T.-III) other system DTC.
STEP 2. Battery terminal check
STEP 3. Check the charging system.
STEP 4. Check the battery.
STEP 5. Voltage measurement at AWC-ECU connector
STEP 6. Scan tool (M.U.T.-III) data list.
STEP 7. Check whether the DTC is stored again.