IDB family
IDB_a037_chassisBusOff
Not Available
What does the IDB_a037_chassisBusOff alert mean?
The Integrated Dynamic Brake (IDB) CHASSIS Controller Area Network (CAN) bus is off.
What you'll see in your Tesla
- Not Available
What triggers it
No CAN traffic is received via the CHASSIS CAN bus (IDB connector pins 9, 10).
When it clears
10 or more valid CAN frames are received via the CHASSIS CAN bus. If the issue persists, a CAN line issue requiring repair is possible.
Potential impact
IDB diagnostics may not be available, and the IDB may not be able to communicate over CHASSIS bus.
Affected models
Model Y 2025+
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