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DIAGNOSIS TSB Revision CONTROLLER AREA NETWORK (CAN) 54C-532 STEP 11. Check A/C-ECU connector C-15 for loose, CAUTION The strand end of the twisted wire should be within 10 cm Q: Is A/C-ECU connector C-15 in good condition? YES : Go to Step 12. STEP 12. Using scan tool MB991958, diagnose the CAN (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 13 . NO : If the MUT-III screen does not correspond to the illustration, go to Step 14. AC305233 AH CONNECTOR: C-15 HARNESS SIDE C-15 (B) AC305233 AH CONNECTOR: C-15 HARNESS SIDE C-15 (B) AC306075 : Red section on screen AE ETACS -ECU AC-ECU SRS-ECU C.DISPLAY MUT J/C METER -ECU PCM ABS-ECU |