Engine-Codes - Jeep - P0871 JEEP

P0871 JEEP - OD Pressure Switch Rationality Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0871 JEEP 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 JEEP?

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 Jeep models:
2003-2005 Jeep Wrangler
2003-2005 Jeep Liberty
2003-2005 Jeep Cherokee
Jeep Factory Service Bulletin OBDII Code P0871

Cost of diagnosing the P0871 JEEP code

Labor: 1.0

The cost of diagnosing the P0871 JEEP code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the code detected?

This code is set if the OD pressure switch is open or closed at the wrong time in a given gear

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Transmission will not shift gears.

P0871 JEEP Meaning

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 as shown below.

P0871 JEEP More Information

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