P0995
Transmission Fluid Pressure Sensor/Switch F Circuit High
Transmission
Generic OBD-II
Medium
What it means
P0995 means the transmission control module reads an abnormally high voltage in the fluid pressure sensor/switch F circuit — often a short to power, a bad sensor, or wiring damage. Because the module relies on this sensor to time shifts, the fault can cause erratic shifting or a switch to limp mode until it's repaired.
Medium
Can I keep driving? Usually yes — but shifting may be off and the transmission can default to a safe mode; fix soon so it isn't shifting on bad pressure data.
Common symptoms
What you'll notice
- Check-engine light on
- Erratic, harsh, or delayed shifting
- Transmission defaults to limp mode
- Reduced acceleration
Common causes
Most likely first
- Short to power (voltage supply) in the sensor F circuitLikely
- Faulty transmission fluid pressure sensor/switch FCommon
- Damaged, chafed, or corroded wiring or connectorCommon
- Low or contaminated transmission fluidLess often
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check transmission fluid level and condition.
- Inspect the sensor F connector and wiring for damage, corrosion, or a short to power; repair as needed.
- Test the transmission fluid pressure sensor/switch F for correct output; replace if faulty.
- If wiring and sensor test good, have the TCM diagnosed. Clear the code and re-test.
FAQ
Quick answers
Is it safe to drive with P0995?+
Usually for the short term, but the transmission may shift on faulty pressure readings or enter limp mode, so have it checked soon.
Can I just clear P0995?+
It returns until the high-voltage fault in the sensor circuit is repaired.
Related codes
Often seen with P0995
Read & clear P0995 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX