B1141 Malfunction in the left side airbag sensor assembly. The side airbag sensor signal is not reliable

What does B1141 mean on a Toyota?

B1141. Malfunction in the left side airbag sensor assembly. The side airbag sensor signal is not reliable. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1141

• Open or short in the left side airbag sensor circuit
• Loose or corroded connector at the left side airbag sensor assembly
• Damaged harness between the airbag sensor center and the left side airbag sensor assembly
• Failed left side airbag sensor assembly
• Faulty airbag sensor assembly center

How to fix B1141

1. Disconnect the battery and wait before touching SRS wiring
2. Confirm the code with an SRS-capable scanner and read freeze frame
3. Inspect and reseat the left side airbag sensor assembly connector
4. Test the left side airbag sensor circuit for opens, shorts and resistance
5. Replace the left side airbag sensor assembly only after the circuit tests fail