P0867Transmission Fluid Pressure
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0867 to P0869 cover the system or line pressure of the gearbox as a whole: a pressure sensor measures it and the control module compares it with the pressure it commands. Faults of the sensor circuit itself have their own codes (Chrysler 68RFE P0932 ff), the single switches A to H have theirs (P0840 ff). Thresholds are not published; the codes are documented in bulletins for the Ram 68RFE and for the Tremec dual clutch of Corvette C8 and Maserati MC20. P0867 is the general pressure fault. GM's Corvette bulletin reads it as 'no system pressure': the pump delivers nothing or the fluid is almost gone, so valve cleaning is pointless and the gearbox needs a mechanical check. The car may lose drive completely.
- What you may notice
- Transmission warning lamp or MIL on
- Weak or no drive
- Limp mode, car may be stranded
- Likely causes
- LikelyFluid level extremely low or leak
- PossibleFluid pump or its drive faulty
- PossiblePressure regulator or relief valve sticking
- RareSystem pressure sensor faulty
- 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: €150 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.