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DIAGNOSTIC TROUBLE CODE PROCEDURES TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-47 STEP 2. Using scan tool MB991958, read the A/C Check if an A/C-ECU DTC is set. YES : Diagnose the air conditioning system (Refer to GROUP 55A, Diagnosis NO : Go to Step 3. STEP 3. Using scan tool MB991958 check for any Check if a DTC, which relates to CAN communication-linked • Combination meter A/C-related time-out DTC • Multi center display (middle-grade type) <Vehicles with multi center display (middle-grade type)> (1) Turn the ignition switch to the "ON" position. (3) Turn the ignition switch to the "LOCK" (OFF) position. YES : Go to Step 4. AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |