Operation CHARM: Car repair manuals for everyone.

B2621

DTC B2621 Communication Interruption

DESCRIPTION





The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodical signal) onto the communication bus on a regular schedule. The multiplex tilt and telescopic ECU detects the connection of each ECU based on this signal.

INSPECTION PROCEDURES

Steps 1-2: