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DIAGNOSIS TSB Revision ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-231 STEP 4. Check the ASC-ECU power supply circuit system. . Q: Is the check result normal? YES : Go to Step 5. (Refer to STEP 5. Using scan tool MB991958, check the other YES : Diagnose the combination meter (Refer to GROUP 54A − Combination Meter/DTC ). Then go to Step 8. NO : Go to Step 6. STEP 6. Using scan tool MB991958, check the other YES : Perform troubleshooting on ETACS-ECU (Refer to GROUP 54A − ETACS/DTC ). Then go to Step 8. NO : Go to Step 7. STEP 7. Retest the system. YES : Intermittent malfunction (Refer to GROUP 00 − How to Use Troubleshooting/How to Cope with Intermittent ). NO : Replace the hydraulic unit (integrated with ASC-ECU) (Refer to STEP 8. Retest the system. YES : The procedure is complete. |