The EPS CM (MDPS=Motor Driving Power Steering) gets signals such as engine RPM and vehicle speed from engine ECM through CAN communication line. And it operates it's MDPS system.
The EPS CM (MDPS=Motor Driving Power Steering) sets this DTC if it hasn't gotten any signals from engine ECM.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
CAN signal monitoring | 1. Poor connection 2. Open or short in the CAN line |
Enable conditions |
•
IG KEY ON | |
Threshold value |
•
When the EPS CM doesn't get any signals from engine ECM. | |
Diagnosis time |
•
500msec |
