LKAS is a device that maintains the vehicle within a lane by detecting the lane via a camera, calculating the vehicle position and the steering force required to keep the vehicle running in the center of the lane, and controlling the vehicle accordingly. The system consists of a LKAS unit, cluster, MDPS and power switch. Based on the VSM message received while communicating with ESP, LKAS determines whether VSM is operating, and, if it is, LKAS stops its control.
While communicating with ABS, TCS and ESP via CAN lines, if an invalid VSM signal is received, the LKAS unit generates the fault code C169087 and turns on the malfunction indicator lamp.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Detect a CAN communication signal | 1. Poor contact with a connector 2. Open or short-circuited CAN communication line 3. ABS/TCS/ESP Module |
Enable Conditions |
•
If the vehicle speed is 50 KPH or faster when IG is "ON" or the engine is "ON." | |
Threshold Value |
•
If the transmission cycle of the VSM1 message increases to 200%+ for more than 5 time | |
Diagnostic Time |
•
Immediately |
