OD Pressure Switch Rationality Fault
Table of contents
P0871 DODGE Possible Causes
- OD Pressure Switch harness is open or shorted
- OD Pressure Switch circuit poor electrical connection
- Faulty OD Pressure Switch
- Internal transmission damage
- Faulty Powertrain Control Module (PCM)
- Faulty Transmission Control Module (TCM)
How do I fix code P0871 DODGE?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a factory service bulletin for the following Dodge models:
- 2004 Dodge Dakota
- 2004 Dodge Durango
- 2005 Dodge Durango
- 2005 Dodge 300
- 2005 Dodge Magnum
- 2005 Dodge Dakota
- Dodge Factory Service Bulletin OBDII Code P0871
Cost of diagnosing the P0871 DODGE code
The cost of diagnosing the P0871 DODGE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission will not shift gears.
P0871 DODGE Description
The Powertrain Control Module (PCM) uses three pressure switches to monitor the fluid pressure in the LR, 2/4, and OD clutch circuits. The pressure switches are continuously monitored for the correct states in each gear. This Diagnostic Trouble Code (DTC) is set if the OD pressure switch is open or closed at the wrong time in a given gear.