Subaru Code P1132 is an issue related to the engine. It is a Front Oxygen Sensor Heater Circuit Low Input which is detected by the Powertrain Control Module (PCM) after the engine is started and the engine runtime exceeds 3 minutes. The PCM can detect an unexpected “low” current condition on the front A/F Sensor (A/FS) signal circuit for 10 seconds during the CCM test. If DTC P0141 is also set, the fault is common to both sensors. The causes of Subaru Code P1132 can vary from something as simple as a faulty power supply or ground circuit of the ECM, to a more complex problem such as a faulty sensor. It is thus important to analyze the root of this issue in order to find the best solution.
Causes and Solutions for Subaru Code P1132
| Cause | Solution |
|---|---|
| Check any other DTC on display | Review codes and reset if needed. |
| Check power supply circuit of ECM | Ensure power supply is functioning properly. |
| Check ground circuit of ECM | Check ground connection and replace if necessary. |
| Check power supply of front sensor | Test the wiring and replace if needed. |
| Check sensor | Diagnose the sensor and replace if necessary. |
Check Any Other DTC on Display
When Subaru Code P1132 is present on the vehicle, it is important to check any other Diagnostic Trouble Codes (DTCs) that may be present. This will help to pinpoint the root of the issue and to determine the best solution. If other DTCs are present, they should be reviewed and reset if needed.
Check Power Supply Circuit of ECM
The power supply circuit of the Engine Control Module (ECM) should also be checked when Subaru Code P1132 is present. This circuit should be inspected to ensure that it is functioning properly. If any power supply issues are found, they should be fixed immediately.
Check Ground Circuit of ECM
When Subaru Code P1132 is present, it is important to check the ground circuit of the ECM. This circuit should be inspected to ensure that it is connected properly. If any issues are found, the ground connection should be replaced as soon as possible.
Check Power Supply of Front Sensor
The power supply of the front A/F Sensor should also be checked when Subaru Code P1132 is present. This circuit should be inspected to ensure that it is functioning properly. If any power supply issues are found, the wiring should be tested and replaced if needed.
Check Sensor
The sensor itself should also be checked when Subaru Code P1132 is present. This can be done by diagnosing the sensor and replacing it if necessary.
Conclusion
When Subaru Code P1132 is present, it is important to diagnose the issue and find the best solution. The causes and solutions for this code vary from something as simple as a faulty power supply or ground circuit of the ECM, to a more complex problem such as a faulty sensor. Therefore, it is important to thoroughly analyze each potential cause in order to find the best solution. By following these steps, the issue of Subaru Code P1132 can be easily solved. Subaru Code P1132 can be fixed by thoroughly diagnosing the issue and making sure the power supply and ground circuits of the ECM are functioning properly, as well as testing and replacing the front A/F Sensor if needed.
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