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THEFT ALARM TSB Revision CHASSIS ELECTRICAL 54A-845 STEP 1. Using scan tool MB991958, read the ETACS-ECU CAUTION To prevent damage to scan tool MB991958, always turn the (1) Turn the ignition switch to the "ON" position. YES : Diagnose the ETACS-ECU (Refer to ). NO : Go to Step 2. STEP 2. Theft alarm sensor operation check 1. With the windows of the vehicle opened, set the theft alarm to the "Ready to be triggered" condition. 2. Put the arm from the outside to the inside of the vehicle. Tilt angle sensor check 1. With the windows of the vehicle opened, set the theft alarm to the "Ready to be triggered" condition. 2. Raise the front wheels or rear wheels. Q: Is the check result normal? YES : The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use NO : Go to Step 3. ZC501967 AC404789 AC702802 MB991824 MB991827 MB991910 Data link connector AB |