OBD-II Diagnostic Trouble Code
B0021
Left curtain deployment control 1 circuit open
B
Body
comfort / safety
comfort / safety
0
Generic
SAE standard
SAE standard
0
Body subsystem
21
Left curtain deployment control 1 circuit open
Severity · general guide
Varies
Body/safety — depends on system
Code type
Generic
System
Body
Standard
ISO/SAE Controlled
Fault type
Circuit/Open