Toyota DTC P1135 – Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1)
DTC P1135 meaning on Toyota
DTC P1135 for Toyota refers to the Air/Fuel Sensor Heater Circuit Response for Bank 1 Sensor 1. This diagnostic trouble code indicates an issue with the heating element circuit of the air/fuel ratio sensor located in Bank 1 Sensor 1 position.
Toyota DTC P1135 symptoms
Symptoms of DTC P1135 on a Toyota may include:
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Engine running rough or misfiring
- Reduced engine performance
Toyota DTC P1135 causes
Common causes of DTC P1135 on a Toyota include:
- Faulty air/fuel ratio sensor
- Issues with the sensor heater circuit wiring
- Corrosion or poor connections in the sensor circuit
- Defective Engine Control Module (ECM)
Toyota DTC P1135 seriousness
DTC P1135 should not be ignored as it can lead to poor engine performance and decreased fuel efficiency. Ignoring this code may result in potential damage to the catalytic converter and other engine components.
How to diagnose DTC P1135 on Toyota
To diagnose DTC P1135 on a Toyota, follow these steps:
- Use an OBD-II scanner to retrieve the fault codes
- Inspect the wiring and connectors of the air/fuel ratio sensor
- Check the resistance of the sensor heater circuit
- Test the sensor heater for proper operation
How to fix DTC P1135 on Toyota
To fix DTC P1135 on a Toyota, you can:
- Replace the faulty air/fuel ratio sensor
- Repair any damaged wiring or connectors in the sensor circuit
- Clear the fault codes and reset the Check Engine Light
How to erase DTC P1135 on Toyota
To erase DTC P1135 on a Toyota:
- Use an OBD-II scanner to clear the fault codes
- Ensure the underlying issue causing the fault code has been resolved
- Perform a test drive to verify the repair
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