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DIAGNOSIS TSB Revision CONTROLLER AREA NETWORK (CAN) 54C-492 STEP 6. Using scan tool MB991958, diagnose the CAN bus (3) Diagnose CAN bus lines, and check if the MUT-III screen is as shown in the illustration. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : If the MUT-III screen corresponds to the illustration, go to Step 7. NO : If the MUT-III screen does not correspond to the illustration, go to Step 8. AC305231AQ CONNECTOR: C-101 HARNESS SIDE AC306074 : Red section on screen AC PCM METER -ECU MUT ETACS -ECU AC-ECU SRS-ECU ABS-ECU J/C |