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DIAGNOSIS TSB Revision CONTROLLER AREA NETWORK (CAN) 54C-239 STEP 58. Using scan tool MB991958, diagnose the CAN CAUTION Strictly observe the specified wiring harness repair proce- CAUTION To prevent damage to scan tool MB991958, always turn the (3) Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the figure. OK: The display of the scan tool MB991958 is as Q: Does scan tool MB991958 screen correspond to the illustration? to GROUP 00, How to use − How to Cope with Intermittent Malfunction NO : Check the ETACS-ECU connector C-301, and repair if necessary. If the ETACS-ECU connector is in good AC608435 Data link connector MB991827 MB991824 MB991910 AB AC709542 AB : Red section on screen M.U.T. J/C (3) SAS J/C (2) KOS/WCM SRS A/C AUDIO MMCS Sat Radio HFM OCM METER ASC ENGINE J/C (1) ETACS <M/T> S-AWC AC709543 AB : Red section on screen M.U.T. J/C (3) SAS J/C (2) KOS/WCM SRS A/C AUDIO MMCS Sat Radio HFM OCM METER ASC LEVER ENGINE J/C (1) ETACS <TC-SST> S-AWC TC-SST J/C (4) |