AHLS provides driver with the best visibility by adjusting vertical direction of the headlamp. It consists of ECM, Linkage and actuator. ECM ouputs the singal based on the driving and loading condition and delivers it to actuator, and then the actuator changes vertical direction of the headlamp .
The system monitors control voltage , and sets DTC C2226 if a deviation of more than the fault threshold is detected for 2 seconds.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Voltage check | ● Poor connection ● Short circuit to chasis ground and battery |
Detecting mode | ● every 100ms | |
Enable condition | ● 15%up to 80% of battery voltage | |
Threshold value | ● Deviation of output voltage from setpoint > output fault threshold | |
Detecting time | ● 2 Sec |