Powertrain, generic · Transmission

P0875 Transmission Fluid Pressure Sensor/Switch D Circuit

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Control valve body with pressure switch faulty (Nissan CVT)
Reverse pressure switch stuck closed (Allison)
Range sensor misadjusted
Wiring or connector

Symptoms

  • MIL or transmission warning lamp on
  • Judder or reduced power (Nissan)
  • Reverse indication or shifting disturbed (Allison)

Repair estimate

DifficultyHardWorkshop job
Parts and labour€300–1,500
Time1.5–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

transmission fluid pressure sensortransmission valve bodytransmission wiringtransmission control module

Related codes

P0876P0877P0878P0879P0870P285A

References: gsi.ext.gm.com, static.nhtsa.gov, law.cornell.edu.