Lexus DTC P1150 – Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1)
DTC P1150 meaning on Lexus
Diagnostic Trouble Code (DTC) P1150 for Lexus indicates an Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction on Bank 2 Sensor 1. This means that the engine control module has detected an issue with the air/fuel ratio sensor’s operation in the first sensor location on Bank 2 of the engine.
Lexus DTC P1150 symptoms
Symptoms of DTC P1150 on a Lexus may include:
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Engine running rough or misfiring
- Reduced engine performance
Lexus DTC P1150 causes
Common causes of DTC P1150 on a Lexus include:
- Failed air/fuel ratio sensor
- Wiring or connector issues in the sensor circuit
- Exhaust system leaks
- Engine vacuum leaks
Lexus DTC P1150 seriousness
DTC P1150 should not be ignored as it can lead to poor engine performance and decreased fuel efficiency. Continuing to drive with this fault may cause further damage to the engine or emissions system.
How to diagnose DTC P1150 on Lexus
To diagnose DTC P1150 on a Lexus, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the air/fuel ratio sensor and its wiring for any visible damage
- Check for exhaust or vacuum leaks
- Perform testing on the sensor circuit to determine if the sensor is functioning correctly
How to fix DTC P1150 on Lexus
To fix DTC P1150 on a Lexus, the following steps may be taken:
- Replace the air/fuel ratio sensor on Bank 2 Sensor 1
- Repair any damaged wiring or connectors in the sensor circuit
- Address any exhaust or vacuum leaks in the system
- Clear the fault code and perform a test drive to ensure the issue is resolved
How to erase DTC P1150 on Lexus
To erase DTC P1150 on a Lexus, you can use a diagnostic scanner to clear the fault code from the engine control module’s memory. Once the code is cleared, the Check Engine Light should turn off. It is important to ensure that the underlying issue causing the fault code has been properly addressed before clearing the code.
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