Dtc B2414 Steering Position Sensor Malfunction
The AFS ECU receives signals regarding the swerve-angle from the steering angle sensor in the steering wheel.
Dtc B2419 Bean Communication Malfunction
The AFS ECU receives signals regarding the lighting condition of the headlight, shift position of the transmission, engine condition from the generator and vehicle speed from the combination meter using multiplex communication.
When the DTC (B2419) is output, the other BEAM communication DTCs are also output at the same time.
Dtc B2412 Headlight Swivel Motor Lh Malfunction
The swivel actuator receives a signal from the AFS ECU to operate and sends a signal regarding the direction of the headlight and condition of the headlight swivel motor to the AFS ECU.
Dtc B2417 Headlight Beam Level Control Motor Lh Malfunction
The leveling actuator (headlight leveling motor) receives a signal from the AFS ECU to operate. The AFS ECU receives signals regarding the operating conditions of the leveling actuator (headlight leveling motor).
Dtc B1244 Light Sensor Circuit Malfunction
This DTC is output when a failure of the automatic light control sensor circuit is detected.
Lighting System - Diagnostic Trouble Code Chart
Lexus IS250 IS220d GSE20 ALE20 LIGHTING
Lighting System - Data List / Active Test
Connect the intelligent tester to the DLC3.
Lighting System - Fail-Safe Chart
Light control ECU
The light control ECU executes the fail-safe actions listed below in accordance with the item that has been detected.
Lighting System - Dtc Check / Clear
Connect the intelligent tester to the DLC3.
Lighting System - Diagnosis System
Lighting system data and the Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs.