P0871 on Dodge: How to Diagnose & Fix
Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance
1 Dodge model · 1 documented issue · 1 critical · $600-$1,200 repair
P0871 on Dodge by model: symptoms, diagnosis and fix
The 2.4L Dart paired with the Aisin 6-speed automatic experiences TCM failures that cause erratic shifting, failure to shift, and limp mode. The TCM mounted on the transmission is exposed to heat and vibration, leading to internal circuit board failures. Unlike the DDCT issues on 1.4T models, this affects the conventional automatic transmission.
Common Symptoms
- Transmission stuck in limp mode (2nd gear only)
- Erratic or harsh shifting
- Check engine light with transmission codes
- Transmission fails to shift into higher gears
- Delayed engagement when shifting from Park
How to Fix
Replace the TCM (Mopar 68164473AH or equivalent). The replacement TCM must be programmed with the VIN and transmission adaptation data at the dealer using wiTECH. Aftermarket remanufactured TCMs are available but must still be dealer-programmed. Cost is $600-$1,200 installed.
Sources for this issue (1)
P0871 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0871 mean on a Dodge?
P0871 stands for "Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance." This code sets when the transmission control module receives a signal from transmission fluid pressure sensor/switch C that is out of the expected range or implausible for the current conditions. This sensor monitors hydraulic pressure inside the transmission, which the module relies on to control clutch apply and shift quality. Symptoms can include harsh, delayed, or erratic shifts, slipping, or the transmission entering a failsafe mode. The cause is typically the sensor, actual fluid pressure problems, or the wiring. On Dodge it is documented across 1 model: Dart.
What are the most common causes of P0871?
The most common causes of P0871 are: Faulty transmission fluid pressure sensor/switch C, Low or degraded transmission fluid, Internal hydraulic leak or low line pressure, Stuck or faulty pressure control solenoid, Wiring or connector issues, Valve body wear or contamination, Faulty transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P0871 on a Dodge?
Published repair estimates on Dodge range from $600 to $1,200 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0871 on a different make?
View P0871 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.