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MULTI-CENTER DISPLAY TSB Revision CHASSIS ELECTRICAL 54A-244 DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: MUT-III USB Cable • MB991911: MUT-III Main Harness A (Vehicles with CAN communication system) STEP 1. Using scan tool MB991958, diagnose the CAN bus YES : Go to Step 2. Diagnosis-Can Bus Diagnostic Chart ). On completion, go to Step 6. STEP 2. Using scan tool MB991958, read MFI system YES : Diagnose the MFI system by referring to GROUP13A, MFI Diagnosis − Diagnostic Trouble Code Chart or GROUP13B, MFI Diagnosis − Diagnostic . NO : Go to Step 3. AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |