Part of the generic B10A2 overview — this page covers the Volvo meaning specifically.
OBD-II Diagnostic Trouble Code
B10A2
Left Blend Door Control Circuit/Performance (ATC)
B
Body
comfort / safety
comfort / safety
1
Mfr
manufacturer code
manufacturer code
0
Body subsystem
A2
Left Blend Door Control Circuit/Performance (ATC)
Severity · general guide
Varies
Body/safety — depends on system
Code type
Volvo
System
Body
Model
XC40
Years
2022