Part of the generic B2900 overview — this page covers the Ford meaning specifically.
OBD-II Diagnostic Trouble Code
B2900
Vin Mismatch
B
Body
comfort / safety
comfort / safety
2
Generic
SAE standard
SAE standard
9
Body subsystem
00
Vin Mismatch
Severity · general guide
Varies
Body/safety — depends on system
Code type
Ford
System
Body
Model
F-150
Years
2011