STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics.
STEP 2. Check whether the DTC is stored again.
STEP 3. Scan tool (M.U.T.-III) other system DTC.
STEP 4. ETACS-ECU coding data check
STEP 5. Check the part number of ETACS-ECU
STEP 6. Check whether the DTC is stored again.
STEP 7. Check whether the DTC is stored again.