Code No.B1139 KOS authentification timeout


DIAGNOSTIC FUNCTION



JUDGEMENT CRITERIA


Check Conditions
  • At KOS-ECU certification
Judgment Criterion
  • During the certification communication with KOS-ECU, the necessary data cannot be received from KOS-ECU via CAN.

PROBABLE CAUSES



  • Malfunction of the CAN bus line
  • Malfunction of KOS-ECU
  • Malfunction of OSS-ECU

DIAGNOSIS PROCEDURE


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