If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C, CAN Bus Diagnostics Table ).
Whenever ECU is replaced, ensure that the CAN bus lines are normal.
OPERATION
VIN (chassis number) is written in the EPS-ECU.
TROUBLE JUDGMENT
Check Conditions
Engine start
Judgment Criterion
When VIN (chassis No.) written in the EPS-ECU is different from VIN information sent from CAN communication
Fail Safe, Back Up Function
The EPS-ECU sets DTC U119A.
TROUBLESHOOTING HINTS
Malfunction of CAN bus line
Chassis No. not programmed
Malfunction of the EPS-ECU
DIAGNOSIS
1. scan tool (M.U.T.-IIISE) CAN bus diagnostics
2. Check the scan tool (M.U.T.-IIISE) DTC for other systems
![[Previous]](../../../buttons/fprev.png)
![[Next]](../../../buttons/fnext.png)
).