2018 / ECLIPSE CROSS / EC - Workshop Manual
35 -SERVICE BRAKES > 35C-ACTIVE STABILITY CONTROL SYSTEM (ASC) > TROUBLESHOOTING<ASC-ECU><ASC-ECU> > DIAGNOSIS CODE PROCEDURES > CODE NO. U0428: COMMUNICATION ERROR IN STEERING WHEEL SENSOR
Code No. U0428 SAS (CAN Message)
| caution | - If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table
 ). - If diagnosis code U0428 is set in ASC-ECU, always diagnose the CAN bus line. If there is any fault in the CAN bus lines, an incorrect diagnosis code may be set. In this case, the set diagnosis code is not highly reliable.
- Before replacing the ECU, ensure that the communication circuit is normal.
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OPERATION
The steering wheel sensor outputs the steering wheel status to ASC-ECU via the CAN bus lines.
DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set when ASC-ECU has detected the communication error in the steering wheel sensor.
PROBABLE CAUSES
- Steering wheel sensor malfunction
- ASC-ECU malfunction
- External noise interference
DIAGNOSIS PROCEDURE
1. Check M.U.T.-IIISE CAN bus diagnostics
2. Check whether the diagnosis code is set again.
