Diagnosis Item 22: Diagnose when the M.U.T.-III cannot receive the data sent by OSS-ECU <vehicles with KOS>



caution When servicing a CAN bus line, earth yourself by touching a metal object such as an unpainted water pipe. If you fail to do, a component connected to the CAN bus line may be broken.

FUNCTION




TROUBLE JUDGEMENT CONDITIONS




TROUBLESHOOTING HINTS



  • Malfunction of the connector [joint connector (CAN1), OSS-ECU connector improperly connected]
  • Malfunction of the wiring harness [open circuit between the OSS-ECU connector and the joint connector (CAN1), power supply circuit to the OSS-ECU]
  • Malfunction of the OSS-ECU