Obdaryn

P0995Transmission Fluid Pressure Sensor/Switch F Circuit High

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
The signal of pressure sensor or switch F stays high: with a normally closed switch the contacts stay open, which looks like permanent pressure, or the wire is open or shorted to voltage. No manufacturer documents this use publicly. Hyundai/Genesis bulletins 17-AT-001-G and 21-AT-016HG list P0995 in their subject lines, but their tables pair it with Auto Shift Manual Mode Circuit (SBC), and 21-AT-016HG prints the DTC as P095500; this is a misprint for P0955 and does not count as a use of P0995. GM's matching switch E code P0990 is a Special No Trip without MIL; Saab's 9-4X text treats an open and a short to voltage alike as high. CARB requires such checks on transmission inputs. P0994 is the low side.
What you may notice
  • Harsh or delayed shifts
  • Shift adaptation frozen
  • Possible limp mode
Likely causes
  • LikelyOpen signal wire or unplugged connector
  • PossibleSignal wire shorted to voltage
  • PossibleSwitch stuck open inside the valve body module
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Hard · Usually a job for a workshop.Typical cost: €100 – €1,500

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.