B1999: Passenger Sid, Side mount Airbag Low resistance on Squib
CriticalBodyRestraint System
What does B1999 mean?
B1999 is a diagnostic trouble code indicating "Passenger Sid, Side mount Airbag Low resistance on Squib". This code relates to your vehicle's restraint system and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Common causes
- Faulty restraint system component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This is a critical issue. Stop driving as soon as it is safe to do so and have the vehicle inspected immediately. Continuing to drive could cause further damage or pose a safety risk.
Get a diagnosis for YOUR car
Code B1999 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.