B1149 Malfunction in the left front airbag sensor circuit
What does B1149 mean on a Toyota?
B1149. Malfunction in the left front airbag sensor circuit. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.
Common causes of B1149
- Open or short in the left front airbag sensor circuit
- Loose or corroded connector at the left front airbag sensor
- Damaged harness between the airbag sensor center and the left front airbag sensor
- Failed left front airbag sensor
- Faulty airbag sensor assembly center
How to fix B1149
- Disconnect the battery and wait before touching SRS wiring
- Confirm the code with an SRS-capable scanner and read freeze frame
- Inspect and reseat the left front airbag sensor connector
- Test the left front airbag sensor circuit for opens, shorts and resistance
- Replace the left front airbag sensor only after the circuit tests fail