Steering angle sensor is installed under the clock spring. Steering angle sensor input to AFLS ECU uses CAN communication in order to measure for speed of steering wheel's operation and angel.Steering angle sensor is composed with main gear and sub gear1, sub gear2 to determine for rotation direction.According to rotation of steering wheel, If the main gear rotate, sub gear1 and sub gear2 be retated. Steering angle sensor calculate rotation angle use MR effect of magnetic that installed in sub gear and different gear ratio sub gear1 and sub gear2. AFLS(Adaptive Front-Lighting System) provides driver with the best visibility uses steering angle sensor's signal.
AFLS ECU set this code If input value(steering angle sensor's signal) is message signal timeout or invalid value.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Signal monitoring | 1. CAN communication circuit open 2. Faulty in steering angle sensor |
Enable Conditions |
•
IG ON | |
Threshold Value |
•
Sreering angle sensor signal is invalid value CAN communication signal not output from Sreering angle sensor | |
Detecting time |
•
2s | |
Fail Safe |
•
Leveling : Normal operation Swivelling : move to 0° position | |
Check Lamp |
•
NO |
