Lexus IS250 IS220d GSE20 ALE20 CAN COMMUNICATION

Lexus IS250 IS220d GSE20 ALE20 CAN COMMUNICATION

Care must be taken when replacing parts. Incorrect replacement could affect the performance of the steering system and result in hazardous driving.

This DTC is detected when communication between the clearance warning ECU and gateway ECU stops for more than 10 seconds.

Remove the MPX-B fuse from the engine room J/B No. 1.

This DTC is detected when communication between the front controller and gateway ECU stops for more than 10 seconds.

This DTC is detected when communication between the AVC-LAN (radio receiver or multi-display) and gateway ECU stops for more than 10 seconds.

This DTC is detected when communication between the position control ECU and switch (passenger ECU) and gateway ECU stops for more than 10 seconds.

This DTC is detected when communication between the main body ECU LH (cowl side J/B LH) and gateway ECU stops for more than 10 seconds.

Disconnect the A ECU connector and check for DTCs B1214 and B1215.