When your Nissan throws a P0705 code, it can feel like you’ve been thrown into a pool of confusion. The P0705 code stands for the Park/Neutral Position Switch Circuit, which is an OBD-II self-diagnostic item. This code is often triggered when the TCM does not receive the correct voltage signal from the PNP switches 1, 2, 3, and 4 based on the gear position. Additionally, the signal from the monitor terminal of the PNP switch 3 could be different than the PNP switch 3, or no other position but “P” position is detected from “N” positions. If you are experiencing a P0705 code, here are a few possible causes and solutions to take into consideration.
Causes and Solutions for Nissan P0705 Code
| Cause | Solution |
|---|---|
| Harness or connectors | Check and repair any broken harnesses or connectors. |
| PNP switches 1, 2, 3, 4 | Replace the PNP switches. |
| PNP switch 3 monitor terminal | Check the PNP switch 3 monitor terminal for any open or shorted circuits. |
| TCM circuit | Ensure the TCM circuit is working properly. |
Harness or Connectors
When your Nissan throws a P0705 code, it could be due to broken harnesses or connectors. The first thing to do is to inspect all the harnesses and connectors associated with the PNP switches 1, 2, 3, and 4. If any of these are damaged, they should be repaired or replaced as needed.
PNP Switches 1, 2, 3, 4
The PNP switches are responsible for sending the correct voltage signal from the gear position to the TCM. If the PNP switches are malfunctioning, then the TCM will not receive the correct voltage signal. As a result, it will trigger the P0705 code. In this case, the PNP switches must be replaced.
PNP Switch 3 Monitor Terminal
The PNP switch 3 has a monitor terminal that is responsible for sending the correct signals to the TCM. If there are any open or shorted circuits in the monitor terminal, the P0705 code will be thrown. To fix this issue, the monitor terminal needs to be checked and repaired if needed.
TCM Circuit
The TCM circuit is also responsible for sending the correct signal to the TCM. If the TCM circuit is having any issues, the P0705 code will be triggered. To fix this issue, the TCM circuit needs to be inspected and repaired if needed.
Conclusion: Fixing Nissan P0705 Code
If your Nissan is throwing a P0705 code, it could be caused by a variety of different issues. The most common causes include broken harnesses or connectors, faulty PNP switches, an issue with the PNP switch 3 monitor terminal, and a malfunctioning TCM circuit. To fix this issue, these components must be inspected and repaired as needed. It is important to remember that any repairs must be done correctly in order to prevent the P0705 code from being thrown again. With the right knowledge and skill, you can fix the Nissan P0705 code and get your car back on the road.
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