Several control units are applied to electronically controlled vehicles. These units perform each control with informations from various sensors. Thus, sharing signal information from sensors is needed, so CAN communication type whose communication speed is high and insensitive to electrical noise by spark generation is adopted to controlling power-train(engine, atutomatic transaxle, ABS, TCS, ECS)AFLS ECU is input some informations(engine speed, steering angle sensor's signal, vehicle speed) in order to maintain optimum headlamp condition through CAN communication.
When the AFLS ECU cannot read the data from the ECM through the CAN-BUS line, the AFLS ECU sets this code. CAN-BUS circuit malfunctioning or ECM can be a posssible cause of this DTC.
Item
Detecting Condition
Possible Cause
DTC Strategy
Signal monitoring
Faulty in CAN
communication dircuit.
communication module.
Enable Conditions
IG ON
Threshold Value
Faulty in CAN communication circuit.
Detecting time
200ms
Fail Safe
Leveling -1.5% down
Swivelling move to 0° position
Check Lamp
NO