STEP 1. Using scan tool MB991958, diagnose the CAN bus lines.
STEP 2. DTC recheck after resetting CAN bus lines
STEP 3. Check the G sensor-related DTC.
STEP 4. Check whether the ASC-ECU is installed properly.
STEP 5. Scan tool MB991958 data list
STEP 6. Check whether the DTC is set again.
STEP 7. Check whether the DTC is set again.