B1159 (blink 16) on Toyota Corolla E120: Front Airbag Sensor (LH) Malfunction
Short answer: B1159 means “Front Airbag Sensor (LH) Malfunction”. The car’s computer has found a fault in the SRS system and turns on the SRS airbag warning. First check: front airbag sensor (LH); Airbag sensor assembly; Wire harness; Engine room main wire harness.
- Code
- B1159 · blink 16
- System
- SRS
- Dashboard light
- SRS airbag warning
- Applies to
- Cars with airbags (SRS)
- Confidence
- high (official Toyota RM821E)
- Source
- toyotamanuals.gitlab.io
Symptoms and when it is set
- /B1159/16 S Front airbag sensor (LH) malfunction
Likely causes
- Front airbag sensor (LH); Airbag sensor assembly; Wire harness; Engine room main wire harness
Related on this car
← B1158/16
Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.

