What does code P1150 mean on Lexus vehicles?
The air/fuel ratio sensor signal on bank 2 sensor 1 is outside expected limits before the catalytic converter.
OBD-II Code Lexus
P1150 — Lexus — Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1)
The air/fuel ratio sensor signal on bank 2 sensor 1 is outside expected limits before the catalytic converter.
Common symptoms
- Check engine light
- increased fuel consumption
Possible causes
- Faulty A/F sensor
- exhaust system issues
Initial recommendation
Check air/fuel ratio sensor operation and exhaust integrity.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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