Part of the generic B1D00 overview — this page covers the Jeep meaning specifically.
OBD-II Diagnostic Trouble Code
B1D00
Left Low Beam: Circuit Short To Ground
B
Body
comfort / safety
comfort / safety
1
Mfr
manufacturer code
manufacturer code
D
Body subsystem
00
Left Low Beam: Circuit Short To Ground
Severity · general guide
Varies
Body/safety — depends on system
Code type
Jeep
System
Body
Model
Grand Cherokee
Years
2011