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 they are 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 the signal.





INSPECTION PROCEDURE

Step 1-2:




Step 3-4: