LKAS takes various vehicle conditions, including vehicle speed, yaw rate, and other data from horizontal acceleration sensor, direction indicator lights, steering column and cluster, as input via CAN High and Low lines. Based on these signals transmitted via Cluster, LKAS determines the vehicle speed to control steering force.The LKAS system prevents the vehicle from getting out of the existing lane. It keeps monitoring on how much the steering wheel is rotated in order to control the vehicle.
While communicating with Steering Angle Sensor (SAS) via CAN, if a signal is not received from SAS, the LKAS module generates the fault code C162387 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. MDPS |
Enable Conditions |
•
If the vehicle speed is 50 KPH or faster when IG is “ON” or the engine is “ON.” | |
Threshold Value |
•
If a message is not received from SAS for 0.5 second | |
Diagnostic Time |
•
Immediately |
