Are you having trouble with your Nissan vehicle due to a code P0105? This code is an indication of an Absolute Pressure Sensor Circuit Malfunction. When the key is on, or the engine is running, the Powertrain Control Module (PCM) detects an unexpected voltage in the Absolute Pressure Sensor circuit. This is used during several of the Main Monitor tests. In this article, we will discuss the causes and solutions of the Nissan Code P0105 to help you determine the best way to fix your vehicle.
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Causes and Solutions of Nissan Code P0105
| Causes | Solutions |
|---|---|
| Absolute pressure sensor signal circuit open or shorted to ground | Check for any open or shorted wiring, and replace or repair as necessary |
| The total pressure sensor signal circuit shorted to VREF | Inspect the wiring and connectors for any signs of damage or corrosion, and repair or replace as necessary |
| The total pressure sensor is damaged or failed | Replace the Absolute Pressure Sensor |
| PCM has failed | Replace the PCM |
Open or Short Circuit in Absolute Pressure Sensor Signal Circuit
A loose or short circuit causes a Nissan Code P0105 in the absolute pressure sensor signal circuit. The PCM monitors the voltage in the whole pressure sensor signal circuit, and if it detects an unexpected voltage, it sets the P0105 code. To fix this code, check for open or shorted wiring and replace or repair as necessary.
Short Circuit to VREF in Absolute Pressure Sensor Signal Circuit
A P0105 code can also be caused by a short circuit to VREF in the absolute pressure sensor signal circuit. To fix this code, you’ll need to inspect the wiring and connectors for any signs of damage or corrosion and repair or replace them as necessary.
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Faulty Absolute Pressure Sensor
A faulty absolute pressure sensor can also cause a P0105 code. If the total pressure sensor is damaged or has failed, you’ll need to replace it.
Failed PCM
Finally, a failed PCM can also set a P0105 code. If the PCM has failed, you’ll need to replace it.
Conclusion
The Nissan Code P0105 indicates an Absolute Pressure Sensor Circuit Malfunction. An open or short circuit can cause this code in the absolute pressure sensor signal circuit, a short circuit to VREF in the whole pressure sensor signal circuit, a faulty absolute pressure sensor, or a failed PCM. To fix this code, check the wiring and connectors, replace the absolute pressure sensor, or replace the PCM. Diagnosing and fixing the Nissan Code P0105 as soon as possible is important to prevent any further damage to your vehicle.
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