Part of the generic B1A42 overview — this page covers the Chrysler meaning specifically.
OBD-II Diagnostic Trouble Code
B1A42
Security Transmitter Sensor Circuit Shorted Together
B
Body
comfort / safety
comfort / safety
1
Mfr
manufacturer code
manufacturer code
A
Body subsystem
42
Security Transmitter Sensor Circuit Shorted Together
Severity · general guide
Varies
Body/safety — depends on system
Code type
Chrysler
System
Body
Model
300C
Years
2005-2010