#Ram pressure codes full
#Ram pressure codes code

They can provide valuable clues to what’s going on inside your transmission. The first thing you want to do is check for other diagnostic codes. We don’t recommend driving with this code, as it can be an early warning of transmission failure.ĭiagnosing P0871 in the Dodge Ram can be challenging, due to the location of the TFPS sensor and the wiring associated with it. Erratic Shifting– Shifts may feel soft (RPM slowly drops during the shift), or they may feel too harsh (abrupt drop in RPM).They will usually be related to voltage and power. Check Engine Light– There will often be other codes that occur with P0871.Limp Mode– Your Ram will shift differently and won’t have access to all of its gears.Here are the most common symptoms associated with P0871 in the Dodge Ram: Your Ram has too little or too much transmission fluid.P0871 occurs when this signal is out of the normal operating range for this signal. The TFPS converts the hydraulic pressure data into a voltage signal that your Ram’s TCM/PCM can use to control the transmission. Verifies that the PCM/TCM’s request for a transmission shift has occurred.Convert the transmission fluid pressure into a signal that the PCM (or TCM) can use to control shifts.Transmission Fluid Pressure Sensor/Switch Here’s the definition of P0871 for the Dodge Ram broken down by its individual parts. P0871 Definition: Transmission Fluid Pressure Sensor/Switch “C” Range/Performance TFPS– Transmission Fluid Pressure Sensor.And, for the purposes of this article, they are interchangeable. Your Dodge Ram will either have a PCM or a TCM. TCM– Transmission Control Module, the TCM controls the shifting of the transmission and is separate from the engine control module.PCM– Powertrain Control Module, this is the main computer module with the engine and transmission control in one unit.

#Ram pressure codes full

Make sure that it is full and doesn’t look burnt or otherwise discolored. Before doing anything, check your Ram’s transmission fluid. It’s a generic code, so P0871 has the same definition for any vehicle made for the 1996 model year and up.

#Ram pressure codes code

While your Dodge Ram’s check engine light will come on, this particular code indicates that there’s something wrong with the transmission, specifically the transmission fluid pressure sensor switch “C”. P0871 is a somewhat rare diagnostic trouble code.