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DIAGNOSIS TSB Revision CONTROLLER AREA NETWORK (CAN) 54C-63 (4) 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? connector C-46 and joint connector (CAN2) C-104. NO : Check S-AWC-ECU connector C-46, and repair if necessary. If the S-AWC-ECU connector is in good STEP 12. Check the wiring harness between joint CAUTION Disconnect the negative battery terminal. For details refer . CAUTION A digital multimeter should be used. For details refer to CAUTION The test wiring harness should be used. For details refer to CAUTION Strictly observe the specified wiring harness repair proce- (1) Disconnect ETACS-ECU connector and joint connector (CAN2), and measure at the wiring harness side. (2) Measure the resistance between joint connector (CAN2) terminal 6 and body ground. OK: 1 kilo ohm or more AC709542 AC : Red section on screen M.U.T. J/C (3) J/C (2) KOS/WCM SRS A/C AUDIO MMCS Sat Radio HFM OCM METER ASC ENGINE J/C (1) ETACS <M/T> SAS S-AWC AC709543 AC : Red section on screen M.U.T. J/C (3) J/C (2) KOS/WCM SRS A/C AUDIO MMCS Sat Radio HFM OCM METER ASC LEVER J/C (1) ETACS <TC-SST> SAS S-AWC J/C (4) TC-SST ENGINE AC709707 Harness side: C-104 AT TEST |