OBD-II Diagnostic Trouble Code
B3809
Rear Door Unlock Relay Circuit
B
Body
comfort / safety
comfort / safety
3
Mfr
manufacturer code
manufacturer code
8
Body subsystem
09
Rear Door Unlock Relay Circuit
Severity · general guide
Varies
Body/safety — depends on system
Code type
Generic
System
Body
Standard
ISO/SAE Controlled
Fault type
Circuit