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.
Power supply mode: ON
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.
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