Lexus DTC P1153 – Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1)
DTC P1153 meaning on Lexus
DTC P1153 on a Lexus indicates a malfunction in the Air/Fuel Ratio Sensor Circuit for Bank 2 Sensor 1. This fault code is specific to the air/fuel ratio sensor located in the exhaust system of the vehicle.
Lexus DTC P1153 symptoms
Symptoms of DTC P1153 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 P1153 causes
Common causes of DTC P1153 on a Lexus include:
- Faulty air/fuel ratio sensor
- Wiring or connector issues in the sensor circuit
- Exhaust system leaks
- Engine running too rich or too lean
Lexus DTC P1153 seriousness
DTC P1153 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 vehicle’s engine and emissions system.
How to diagnose DTC P1153 on Lexus
To diagnose DTC P1153 on a Lexus, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the air/fuel ratio sensor for any visible damage
- Check the wiring and connectors for any signs of wear or corrosion
- Perform a voltage test on the sensor circuit
How to fix DTC P1153 on Lexus
To fix DTC P1153 on a Lexus, the following steps may be taken:
- Replace the faulty air/fuel ratio sensor
- Repair or replace any damaged wiring or connectors
- Address any exhaust leaks in the system
- Reset the fault code and test drive the vehicle to ensure the issue is resolved
How to erase DTC P1153 on Lexus
To erase DTC P1153 on a Lexus, the fault code can be cleared using a diagnostic scanner. Once the underlying issue has been fixed, clearing the code will reset the Check Engine Light and ensure the repair was successful.
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