Code No. U0245 AND CAN timeout


caution
  • If diagnosis code No. U0245 is set, be sure to diagnose the CAN bus line.
  • Before replacing ECU, ensure that the communication circuit is normal.

DIAGNOSTIC FUNCTION



JUDGEMENT CRITERIA


Check Conditions
  • When all the following conditions are met.

  1. Ignition switch: ON
  2. ETACS-ECU system voltage is at 10 to 16 V.
Judgment Criterion
  • After the following condition is met, 2,500 ms or more have elapsed.

  1. CAN signal from MMCS cannot be received.

PROBABLE CAUSES



  • Malfunction of the CAN bus line
  • CAN box unit malfunction
  • Malfunction of MMCS power supply circuit
  • MMCS malfunction
  • Error in option coding setting of ETACS-ECU (replacement with the navigation unit not compatible with CAN communication)
  • Malfunction of KOS-ECU

DIAGNOSIS PROCEDURE


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