P0867: Transmission Fluid Pressure
Standardized SAE J2012 code · P08xx — Transmission
What does P0867 mean?
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.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Transmission warning lamp or MIL on
- Weak or no drive
- Limp mode, car may be stranded
Common causes
- High Fluid level extremely low or leak
- Medium Fluid pump or its drive faulty
- Medium Pressure regulator or relief valve sticking
- Low System pressure sensor faulty
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P0867 on the same make and model first.
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