P0992
Transmission Fluid Pressure Sensor/Switch F Circuit
Transmission controls
Generic OBD-II
Medium
What it means
P0992 means the transmission control module detected a circuit problem with the 'F' transmission fluid pressure sensor/switch, which reports internal fluid pressure. Without a valid pressure signal, the transmission may shift erratically or enter limp mode. The cause is usually wiring, a connector, or the sensor itself — not an engine no-start.
Medium
Can I keep driving? Often driveable, but shift quality may be erratic and the transmission can enter limp mode — get it checked before longer trips.
Common symptoms
What you'll notice
- Check-engine light on
- Erratic or abnormal shifting behavior
- Harsh or delayed shifts between gears
- Reduced transmission performance or limp mode
- Other transmission-related codes may set alongside it
Common causes
Most likely first
- Wiring or connector fault (open, short, or corrosion) in the sensor circuitLikely
- Faulty transmission fluid pressure sensor/switch 'F'Common
- Corroded or damaged connector at the sensorCommon
- Faulty transmission control module (TCM) — less commonLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and inspect the sensor 'F' connector and wiring for damage or corrosion.
- Check the circuit for correct voltage and continuity with a multimeter; repair any open or short.
- Test the transmission fluid pressure sensor/switch and replace it if it reads out of spec.
- If wiring and sensor are good, have the TCM evaluated. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0992?+
Usually for short distances, but the transmission may shift erratically or limp because it is missing accurate pressure feedback. Have it diagnosed soon.
Can I just clear P0992?+
It will return until the circuit or sensor fault is fixed. Clearing only resets the light temporarily.
Related codes
Often seen with P0992
Read & clear P0992 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