P0876Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Transmission fluid pressure switches C and D report whether a clutch circuit is pressurised. They are more widespread than A and B: GM's 6L80/6L90 and 6T40/6T70 six-speeds put switch C on the 2-6 brake and D on the 1-2-3-4 clutch, Allison uses them for its third shift valve and its reverse switch, Ram's RFE gearboxes for the clutch pressure switches in the solenoid block. Ford reports pressure faults under its solenoid codes. P0876 means D is electrically fine but implausible. Allison 2006: the reverse switch stays open in R, or does not drop out within 5 to 30 s after engine stop, type B with two trips. Mitsubishi's Jatco CVT sets it when the high clutch switch stays on for 1.5 s while the clutch should be exhausted. On Ram's 68RFE it came with P0871 from mechanical damage.
- What you may notice
- MIL or transmission warning lamp on
- Limp mode, harsh engagement
- Likely causes
- LikelyValve body worn or dirty, valve sticking
- PossiblePressure switch faulty
- PossibleMechanical damage: thrust washer, clutch
- RareFluid level or condition
- 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: €200 – €3,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.