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DTC U0245 NAVI/DISP. AUDIO CAN timeout
 
 
caution
  • If DTC U0245 is set, be sure to diagnose the CAN bus line.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
DIAGNOSTIC FUNCTION
If no signal from CAN box unit (MMCS) can be received, KOS-ECU stores DTC U0230.
 
 
DTC SET CONDITION
Check Conditions
  • When all the following conditions are met.
    1. Power supply mode: 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.
 
 
TROUBLESHOOTING HINTS
  • 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
1. Using scan tool (M.U.T.-III), diagnose the CAN bus line.
2. Check of ETACS-ECU option coding
3. ETACS-ECU diagnostic trouble code check
4. KOS-ECU diagnostic trouble code recheck