Lexus P1150: A/F Sensor-21 (Bank 2 Sensor 1) Circuit Malfunction
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Lexus P1150: A/F Sensor-21 (Bank 2 Sensor 1) Circuit Malfunction
OVERVIEWWhat Does The Lexus P1150 Code Mean?
DTC P1155 not set, engine running in closed loop, and the PCM detected the A/F sensor signal was more than 3.8v or less than 2.8v; or the A/F sensor signal was fixed at 3.30v; or it detected an unexpected “high” or “low” voltage condition on the A/F Sensor.
What Are The Potential Causes Of The Lexus P1150 Code?
- A/FS signal circuit or ground circuit is open (intermittent fault)
- A/FS power circuit is open (an intermittent fault)
- A/FS is contaminated, damaged or has failed
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Engine Control Computer
>>> Denso Air Fuel Ratio Sensor
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
LEXUS Diagnostics Document, page DI-16
