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AUTOMATIC TRANSAXLE DIAGNOSIS <A/T> TSB Revision AUTOMATIC TRANSAXLE 23C-21 HOW TO DIAGNOSE THE CAN BUS LINES Required Special Tools: • MB991958: Scan Tool (M.U.T.-III Sub Assembly) • MB991824: V.C.I. • MB991827: M.U.T.-III USB Cable • MB991910: M.U.T.-III Main Harness A CAUTION To prevent damage to scan tool MB991958, always turn the matches the vehicle whose CAN bus lines will be • If they match, go to step 8. • If not, go to step 5. 5. Select the "view vehicle information" button. that it matches the vehicle whose CAN bus lines will be • If they match, go to step 8. • If not, go to step 5. 8. Select the "OK" button. the one which the vehicle is fitted with, and then select the HOW TO INITIALIZE A/T LEARNED VALUE M1231022600325 PURPOSE A/T learned value must be reset whenever the auto- INITIALIZATION PROCEDURE 1. Move the selector lever to the P range and turn the ignition switch to the LOCK (OFF) position. 2. Turn the ignition switch to the ON position, and then move the selector lever to the R range. 3. Depress the accelerator pedal while depressing the brake pedal. (Engine is not running.) Using NOTE: Performing initialization of the learned value ZC501967 AC404789 AC701411AB MB991824 MB991827 MB991910 Data link |