P0875Transmission Fluid Pressure Sensor/Switch D Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- 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. P0875 is the general fault of D. Allison's 2006 table uses it for the reverse pressure switch: it reports reverse while the range sensor shows P, N or a forward range for over 1 s, type A. Nissan's Kicks and Versa CVT reports the high clutch switch of the auxiliary gearbox as 'sensor/switch D'; together with P285A the control valve body is replaced.
- What you may notice
- MIL or transmission warning lamp on
- Judder or reduced power (Nissan)
- Reverse indication or shifting disturbed (Allison)
- Likely causes
- LikelyControl valve body with pressure switch faulty (Nissan CVT)
- PossibleReverse pressure switch stuck closed (Allison)
- PossibleRange sensor misadjusted
- RareWiring or connector
- 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: €300 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.