What Does P0875 Mean?
The TCM has detected a general malfunction in the transmission fluid pressure sensor/switch 'D' circuit. This sensor monitors hydraulic pressure in a fourth transmission circuit, typically associated with a specific clutch application or torque converter circuit. The TCM is receiving a signal that is outside normal operating parameters.
Common Causes
35%
Faulty transmission fluid pressure sensor/switch 'D'
25%
Damaged or corroded wiring to sensor 'D'
20%
Poor electrical connection at sensor or TCM connector
12%
Internal transmission hydraulic issue in circuit 'D'
8%
TCM internal circuit failure
Diagnostic Steps
1
Retrieve freeze frame data and note the gear, RPM, temperature, and other conditions when the code set.
2
Verify 5V reference voltage and ground at the pressure sensor 'D' connector.
3
Monitor live data PID for pressure sensor 'D' to see if the signal is absent, stuck, or erratic.
4
Inspect the sensor connector and transmission case pass-through connector for corrosion, contamination, or damaged pins.
5
Test sensor 'D' resistance/output against manufacturer specifications; replace if out of range.
Estimated Repair Cost
$100 - $600
Parts + labor, varies by vehicle and location
The TCM has detected a general malfunction in the transmission fluid pressure sensor/switch 'D' circuit. This sensor monitors hydraulic pressure in a fourth transmission circuit, typically associated with a specific clutch application or torque converter circuit. The TCM is receiving a signal that i...
The most common cause of P0875 (Transmission Fluid Pressure Sensor/Switch "D" Circuit) is: Faulty transmission fluid pressure sensor/switch 'D'
Typical repair costs for P0875 range from $100 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Drive cautiously. The TCM may use default pressure values which can result in firm shifts. Avoid heavy loads and extended driving until the sensor circuit is repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0875 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Transmission Hydraulic Pressure Monitoring
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
