What does code P1150 mean on Toyota vehicles?
The downstream air/fuel ratio sensor signal is outside expected range or performance limits.
OBD-II Code Toyota
P1150 — Toyota — Air/Fuel Ratio Sensor Circuit Range/Performance (Bank 1 Sensor 2)
The downstream air/fuel ratio sensor signal is outside expected range or performance limits.
Common symptoms
- Check engine light
Possible causes
- Faulty air/fuel ratio sensor
Initial recommendation
Test downstream air/fuel ratio sensor operation.
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.
Analyze this code with MecaOBD
Use the app to combine Toyota code P1150 with your vehicle's actual symptoms for more complete diagnostic guidance.
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