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ETACS TSB Revision CHASSIS ELECTRICAL 54A-745 DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (M.U.T.-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: M.U.T.-III USB Cable • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system) STEP 1. Using scan tool MB991958, diagnose the CAN bus CAUTION To prevent damage to scan tool MB991958, always turn the Scan Tool (M.U.T.-III) ." (2) Turn the ignition switch to the "ON" position. YES : Go to Step 2. ). STEP 2. Using scan tool MB991958, read the steering YES : Troubleshoot the steering wheel sensor (Refer to GROUP 35C, Diagnosis ). NO : Go to Step 3. STEP 3. Using scan tool MB991958, read the ASC-ECU YES : Go to Step 4. ZC501967 AC404789 AC702802 MB991824 MB991827 MB991910 Data link connector AB |