Honda code P0872 is an issue that can affect the transmission of a Honda vehicle. It is caused by an electrical circuit problem and is triggered when the input signal from the 4th clutch transmission fluid pressure switch to the PCM is low when driving in the 5th gear. This code can be problematic and cause various issues, ultimately leading to severe complications if not treated in time. If a Honda owner notices any symptoms associated with P0872, it is essential for them to investigate the issue as soon as possible in order to prevent further damage and expense. This article will outline the definition, causes, and solutions for the Honda code P0872 in order to help Honda owners identify and resolve this issue quickly and efficiently.
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Causes and Solutions to Honda Code P0872
| Cause | Solution |
|---|---|
| Faulty 4th clutch transmission fluid pressure switch | Replace the switch |
| Intermittent short to ground between the 4th clutch transmission fluid pressure switch and the PCM | Replace the switch and check the wiring |
| Clutch transmission fluid pressure switch stuck ON | Replace the switch |
| Faulty PCM | Replace the PCM |
Faulty 4th Clutch Transmission Fluid Pressure Switch
When the input signal from the 4th clutch transmission fluid pressure switch to the PCM is low, the Honda code P0872 will be triggered. The most common cause for this issue is a faulty 4th clutch transmission fluid pressure switch. Replacing the switch should fix the problem and clear the code.
Intermittent Short to Ground
Intermittent short to ground between the 4th clutch transmission fluid pressure switch and the PCM can also cause the Honda code P0872 to be triggered. The best solution is to replace the switch and check all wiring connections to ensure a clean connection.
Clutch Transmission, Fluid Pressure Switch, Stuck On
A stuck clutch transmission fluid pressure switch can cause the Honda code P0872. This can be a complex problem to diagnose, and the best solution is to replace the switch itself.
Faulty PCM
A faulty PCM can also cause the Honda code P0872. In this instance, the only solution is to replace the PCM.
Conclusion
The Honda code P0872 is a common problem that can be caused by a variety of factors, including a faulty 4th clutch transmission fluid pressure switch, an intermittent short to ground between the 4th clutch transmission fluid pressure switch and the PCM, a clutch transmission fluid pressure switch that is stuck on, or a faulty PCM. The best way to resolve this issue is to correctly identify the cause and then take the necessary steps to fix it. Following the steps outlined in this article, Honda owners can successfully diagnose and repair the Honda code P0872.