DTC B2621: Communication Interruption: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
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 (periodic 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.
DTC DETECTION ITEM AND TROUBLE AREA
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2621 | Periodic signal from the specified ECU has stopped |
|