[SOLVED] Dodge P0871 Code: Quick Fix For Od Pressure Switch Rationality

The OBD code P0871 for Dodge indicates a problem with the OD Pressure Switch Circuit.

This affects the transmission system.

Symptoms include the Engine Light ON and transmission not shifting gears properly.

Causes can be an open/shorted harness, poor electrical connection, faulty switch, internal transmission damage, or PCM/TCM issues.

It’s a serious issue that requires immediate attention.

To fix, inspect wiring, connectors, and components for damage or corrosion.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

Symptoms of the Dodge p0871 OBD Code

The Dodge with fault code P0871 may exhibit harsh shifting and transmission slippage.

Symptoms: Engine Light ON.
Transmission may not shift gears.
Transmission may slip.
Vehicle may go into limp mode.
Transmission may make unusual noises.

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Causes of the Dodge p0871 OBD Code

Possible reasons for Dodge fault code P0871 include low transmission fluid, faulty transmission pressure sensor, or wiring issues.

P0871 can be caused by an open or shorted OD Pressure Switch harness.
A poor electrical connection in the OD Pressure Switch circuit.
A faulty OD Pressure Switch.
Internal transmission damage.
A faulty Powertrain Control Module (PCM).
A faulty Transmission Control Module (TCM).

Fixing Dodge Error Code p0871 Step By Step

Address the issue by inspecting the transmission fluid pressure sensor circuit for Dodge code P0871.

To fix the Dodge OBDII code P0871, start by reviewing the possible causes mentioned above.
Visually examine the transmission fluid pressure sensor switch D circuit wiring harness and connectors.
Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Test the transmission fluid pressure sensor switch D for proper operation.
Replace the transmission fluid pressure sensor switch D if it is found to be faulty.
Clear the fault codes and perform a test drive to verify the repair.

Cost Of Fixing Dodge p0871 Fault Code

Diagnosing and repairing fault code P0871 on a Dodge typically involves inspecting and servicing the transmission.

The cost to diagnose and fix a Dodge OBD code P0871 typically ranges from $75 to $150 per hour for labor rates.

With an estimated repair time of 1. 0 hour, the total cost could be around $75 to $150, depending on shop rates and the complexity of the issue.

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Details of the Dodge p0871 OBD Code

Dodge fault code P0871 relates to an issue with the transmission fluid pressure sensor circuit.

Dodge OBD code P0871 means Transmission Fluid Pressure Sensor/Switch C Circuit Range/Performance.

This code is triggered by the Transmission Control Module (TCM) when it detects that the transmission fluid pressure sensor/switch C circuit is operating outside of normal parameters.

This sensor is responsible for monitoring the fluid pressure within the transmission.

When the signal from this sensor deviates from the expected range, the TCM sets code P0871.

Mechanic’s Tech Notes

Detailed information on Dodge fault code P0871, including symptoms, causes, and diagnostic steps for resolution.

To diagnose and fix OBDII code P0871 in a Dodge, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) using a scan tool.

If the TCM does not respond, reprogramming or reflashing may be necessary.

Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.

Ensure all connections are secure.

If the issue persists, consider testing the TCM for internal faults or seeking professional assistance for further diagnosis.

FAQ

1. What are the common symptoms associated with OBD code P0871 in a Dodge vehicle?

Common symptoms of OBD code P0871 in a Dodge vehicle include Engine Light ON, transmission not shifting gears. Causes may include faulty OD Pressure Switch. Fix: Inspect wiring and connectors.

2. What is the typical cause of OBD code P0871 in a Dodge vehicle?

Typical cause of OBD code P0871 in a Dodge: Faulty OD Pressure Switch, open/shorted harness, poor connection, internal transmission damage, faulty PCM/TCM. Inspect wiring and connectors for issues.

3. How can I fix OBD code P0871 in my Dodge vehicle?

To fix OBD code P0871 in a Dodge vehicle, check OD Pressure Switch circuit for open/short, poor connection, or faulty switch. Inspect wiring harness and connectors for damage.

Wrap Up

If your Dodge is displaying OBD code p0871 and experiencing shifting issues, it may be caused by a faulty transmission fluid pressure sensor, low transmission fluid level, or a damaged wiring harness in the transmission circuit.

To address Dodge OBD code p0871, check the transmission fluid level and condition, inspect the wiring harness for any visible damage, test the transmission fluid pressure sensor for proper operation, and ensure all connectors are securely attached.

Consider replacing the sensor or repairing any damaged wiring as needed.