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DIAGNOSTIC TROUBLE CODE PROCEDURES TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-39 STEP 3. Use scan tool MB991958 to select "ECU COMM Check the following ECUs: • Sunroof-ECU • ETACS-ECU CAUTION Connect special tool MB991910 before connecting special monitor ." (2) Turn the ignition switch to the "LOCK" (OFF) position. below to display "ECU COMM Check." (4) Scan tool MB991958 should show "OK" on the "ECU COMM Check" menus for both the "SUNROOF ECU" and Q: Is "OK" displayed for both the "SUNROOF ECU" and "ETACS ECU" menus? there is an intermittent malfunction such as poor "NG" is displayed for the "SUNROOF ECU" menu : Refer to Inspection Procedure A-5 "NG" is displayed for the "ETACS ECU" menu : Refer to Inspection Procedure A-3 "Communication with AC305411AB MB991910 DATA LINK CONNECTOR MB991827 MB991824 MB991806 MB991812 AC302210 COLUMN SWITCH COLUMN SWITCH MB991812 AB |