OBD-II Diagnostic Trouble Code
B1D78
Auxiliary Input: Circuit Open
B
Body
comfort / safety
comfort / safety
1
Mfr
manufacturer code
manufacturer code
D
Body subsystem
78
Auxiliary Input: Circuit Open
Severity · general guide
Varies
Body/safety — depends on system
Code type
Ford
System
Body
Model
F-150
Years
2011