LIN (Local Interconnect Network) is direct communication system to low-cost for electric system of vehicle. AFLS ECU controls the position of headlamp by using LIN which calculates input signals of height sensor, vehicle speed and steering wheel position.
Swivel Actuator controls left / right position of Headlamp, ISM(Intelligent Stepper Motor) controls up/down position of headlamp.
If this LIN communication error of right HLL(Head Lamp Leveling) occurs, this B2202 code is set.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Signal monitoring | 1. LIN Communication circuit is opened 2. Faulty HLL of right side headlamp |
Enable Conditions |
•
IG ON | |
Threshold Value |
•
Right ISM(Intelligent Stepper Motor) LIN communication error | |
Detecting time |
•
1sec. | |
Fail Safe |
•
Swivelling : normal operation.
•
Levelling : stop at present status. | |
Check Lamp |
•
No |
Fig.1) LIN communication Signal Waveform
