P0867
Transmission Fluid Pressure
- Severity
- High
- Driving
- Drive only to a garage
The transmission fluid pressure is not what the module expects, without it specifying high or low. Line pressure is what holds the clutches together, so a pressure problem is one of the more serious things a transmission can report - too little and the clutches slip and burn, too much and the shifts become violent.
Possible causes
- CommonLow fluid level
- CommonBlocked transmission filter
- CommonFailed pressure control solenoid
- PossibleWorn pump
- PossibleInternal leak past a worn seal or clutch
- PossibleFaulty pressure sensor
What you might notice
- Slipping or harsh shifting
- Delayed engagement into drive or reverse
- Limp mode
- Burnt smell from the fluid
- Check engine light on
What to check, in order
- Check the fluid level and condition first. It is the most common cause and the only one you can fix cheaply.
- Check when the filter was last changed.
- Read all codes for a pressure sensor or solenoid code that names the component.
- A line pressure test with a gauge is the definitive step here and is worth paying for.
- Look for clutch material in the fluid, which tells you whether the transmission is worth repairing before any money is spent.
Read this code from your own car
Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.
Where this code sits
P00xxP01xxP02xxP03xxP04xxP05xxP06xxP07xxP08xxP09xxP0AxxP0BxxP0CxxP0DxxP0ExxP0FxxP10xxP11xxP12xxP13xxP14xxP15xxP16xxP17xxP18xxP19xxP1AxxP1BxxP1CxxP1DxxP1ExxP1FxxP20xxP21xxP22xxP23xxP24xxP25xxP26xxP27xxP28xxP29xxP2AxxP2BxxP2CxxP2DxxP2ExxP2FxxP30xxP31xxP32xxP33xxP34xxP35xxP36xxP37xxP38xxP39xxP3AxxP3BxxP3CxxP3DxxP3ExxP3Fxx
Transmission
P0800P0801P0802P0803P0804P0805P0806P0807P0808P0809P0810P0811P0812P0813P0814P0815P0816P0817P0818P0819P0820P0821P0822P0823P0824P0825P0826P0827P0828P0829P0830P0831P0832P0833P0834P0835P0836P0837P0838P0839P0840P0841P0842P0843P0844P0845P0846P0847P0848P0849P0850P0851P0852P0853P0854P0855P0856P0857P0858P0859P0860P0861P0862P0863P0864P0865P0866P0867P0868P0869P0870P0871P0872P0873P0874P0875P0876P0877P0878P0879P0880P0881P0882P0883P0884P0885P0886P0887P0888P0889P0890P0891P0892P0893P0894P0895P0896P0897P0898P0899