P0875: Transmission Fluid Pressure Sensor/Switch D Circuit
What to do
Symptoms will probably be confined to particular gears. Ask whether the pressure readings were compared across all the sensors — on a transmission with this many, they usually identify the affected circuit directly.
What this code means
A fault in a fourth pressure monitoring circuit. Four monitoring points is characteristic of transmissions with many ratios and clutch-to-clutch shifting, where each element is controlled and watched individually — the design that makes these gearboxes shift as smoothly as they do, and that makes their faults unusually specific when they arrive.
Likely causes
Start here
- Faulty transmission fluid pressure sensor · moderate
- Low or degraded transmission fluid · easy
- Worn valve body · specialist
Less common
- Damaged transmission wiring harness · moderate
- Faulty pressure control solenoid · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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