Subaru Code P1155 is a DTC that is associated with poor drivability in Subaru cars. It is a Bank 2 and Sensor 1 Oxygen Sensor (front left) Circuit Range/Performance Problem High Input. This code’s cause can vary and range from other DTCs on display to the exhaust system. To combat this issue, a scan tool should be used to check current data and the rear sensor signal. Additionally, a thorough inspection of the exhaust system should be conducted. To ensure the best resolution to this problem, these causes must be addressed.
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Causes and Solutions for Subaru Code P1155
| Cause | Solution |
|---|---|
| Are any other DTCs on display | Check the scan tool for current data |
| Rear sensor signal | Inspect for any damage or malfunction |
| Exhaust system | Perform a thorough inspection of the exhaust system |
| Circuit Range | Contact a qualified technician to diagnose the issue |
Regarding Subaru Code P1155, it is important to understand the scope of the issue and the underlying causes. This code is associated with Bank 2 and Sensor 1 Oxygen Sensor (front left) Circuit Range/Performance Problem High Input, which can lead to poor drivability. To identify the source of the issue, a scan tool should be used to identify any additional DTCs on display and the rear sensor signal. Additionally, a thorough inspection of the exhaust system should be conducted. Lastly, a qualified technician should be contacted for a diagnosis of any issues related to the circuit range.
Check Scan Tool for Current Data
The first step to troubleshooting Subaru Code P1155 is to check for other DTCs on display. A scan tool should be used to identify any additional codes associated with this issue. This will help narrow down the issue’s root cause and provide a better understanding of the underlying issue.
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Inspect Rear Sensor Signal
Once the scan tool has been used, inspecting the rear sensor signal is next. This will help to determine if any damage has occurred or if a malfunction in the system is causing the problem. This should be done carefully to ensure that all components are in working order and that no further damage is caused.
Conduct a Thorough Inspection of the Exhaust System
The exhaust system should also be inspected thoroughly to identify any potential issues. This could include faulty gaskets, clamps, or hangers causing the problem. Any parts that are found to be defective should be replaced to resolve the issue.
Contact a Qualified Technician for Diagnosis
If the issue is related to the circuit range, a qualified technician should be contacted for a diagnosis. This will help to identify any further problems that may be causing the code to appear. The technician should be able to provide advice on the best course of action to resolve the issue.
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Conclusion
Subaru Code P1155 is a DTC associated with Bank 2 and Sensor 1 Oxygen Sensor (front left) Circuit Range/Performance Problem High Input. To combat this issue, a scan tool should be used to check for any other DTCs, the rear sensor signal should be inspected, and a thorough exhaust system inspection should be conducted. Lastly, a qualified technician should be contacted for a diagnosis if the issue is related to the circuit range. By following these steps, it is possible to resolve the issue of Subaru Code P1155 and ensure the best performance from your Subaru.
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