P0871 OBD-II: Transmission Fluid Pressure Sensor/Switch "C" Circuit

P0871 Severity

Urgent

Should you fix P0871 yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

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P0871 Summary Find a Repair Shop P0871 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0871?

The Transmission Fluid Pressure Sensor tells the Transmission control module (TCM) the pressure of the fluid going through the transmission. When the TCM detects an incorrect signal from the Transmission Pressure Sensor, it sends a signal to the engine control module (PCM) to set code P0871.

OBD II Fault Code

OBD II P0871

OBD-II Code Transmission may not shift properly is defined as a Transmission Fluid Pressure Sensor/Switch "C" Circuit

Transmission may not shift properly Symptoms

Increased fuel consumption
Transmission may not shift properly

Common Problems That Trigger the P0871 Code

Transmission Control Module (TCM) failure
Transmission fluid pressure sensor failure
Wiring issue

OBD Code Resources

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OBD II Fault Code

OBD II P0871

OBD-II Code Transmission may not shift properly is defined as a Transmission Fluid Pressure Sensor/Switch "C" Circuit

Transmission may not shift properly Symptoms

Increased fuel consumption
Transmission may not shift properly

Common Problems That Trigger the P0871 Code

Transmission Control Module (TCM) failure
Transmission fluid pressure sensor failure
Wiring issue

P0871 OBD-II: Transmission Fluid Pressure Sensor/Switch "C" Circuit

Should you fix P0871 yourself?

What causes OBD-II fault code P0871?

Need a P0871 diagnosis? Trust our experts.

OBD II Fault Code

Transmission may not shift properly Symptoms

Common Problems That Trigger the P0871 Code

OBD Code Resources

Ask our experts about P0871.

Other OBD-II Codes

OBD II Fault Code

Transmission may not shift properly Symptoms

Common Problems That Trigger the P0871 Code