The P0995: Transmission Fluid Pressure Sensor/Switch ‘F’ Circuit High refers to a problem where the transmission fluid pressure sensor/switch ‘F’ circuit is receiving higher than expected voltage. This can cause inaccurate fluid pressure readings, potentially leading to transmission shifting issues and performance problems.
P0995 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0995: Transmission Fluid Pressure Sensor/Switch ‘F’ Circuit High |
| Is it serious? | Yes, high voltage can lead to improper transmission fluid pressure regulation, affecting shifting and transmission performance. |
| Possible causes | – High voltage in the transmission fluid pressure sensor/switch ‘F’ circuit – Faulty transmission fluid pressure sensor/switch ‘F’ – Wiring or connector issues |
| How to diagnose? | – Check the circuit for high voltage – Inspect wiring and connectors – Replace the transmission fluid pressure sensor/switch ‘F’ if necessary |
P0995 Meaning
The P0995: Transmission Fluid Pressure Sensor/Switch ‘F’ Circuit High code indicates that the voltage in the transmission fluid pressure sensor/switch ‘F’ circuit is higher than the specified range. This excessive voltage can lead to incorrect pressure readings, resulting in poor transmission performance, such as rough or delayed shifting.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional fault codes that may provide further context on the high voltage issue. | OBD-II Scanner |
| Test for High Voltage | Use a multimeter to check the voltage in the transmission fluid pressure sensor/switch ‘F’ circuit. Compare the voltage readings with manufacturer specifications to determine if the voltage is too high. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors for signs of damage, corrosion, or loose connections that could be causing high voltage in the sensor circuit. | Flashlight, Multimeter |
| Test the Sensor | Use a diagnostic tool to test the transmission fluid pressure sensor/switch ‘F’. Replace the sensor if it is malfunctioning or receiving excessive voltage. | Diagnostic Tool, Replacement Sensor |
| Clear the Code and Test Drive | After making repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the system to ensure the P0995 code does not return after the test drive. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko