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INPUT SIGNAL PROCEDURES TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-507 STEP 1. Use scan tool MB991958 to select "ECU COMM Check the column-ECU. CAUTION To prevent damage to scan tool MB991958, always turn the monitor ." (2) Turn the ignition switch to the "ON" position. display "ECU COMM Check." (4) Scan tool (MUT-III) should show "OK" on the "ECU COMM Check" menu for the "COLUMN ECU" menu. Q: Is "OK" displayed for the "COLUMN ECU" menu? YES : Go to Step 2. with the column switch (column-ECU) is not possible AC305411AB MB991910 DATA LINK CONNECTOR MB991827 MB991824 MB991806 MB991812 AC302210 COLUMN SWITCH COLUMN SWITCH MB991812 AB |