Engine-Codes - Subaru - P0851 SUBARU

P0851 SUBARU - Park/Neutral Position Switch Circuit Low Voltage

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

P0851 SUBARU Possible Causes

  • Faulty Park/Neutral Switch
  • Park/Neutral Switch harness is open or shorted
  • Park/Neutral Switch circuit poor electrical connection

How do I fix code P0851 SUBARU?

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 Subaru models:

2005-2008 Subaru Legacy
2005-2008 Subaru Outback
2005-2008 Subaru Impreza
2005-2008 Subaru Forester
Subaru Factory Service Bulletin OBDII code P0851

Cost of diagnosing the P0851 SUBARU code

Labor: 1.0

The cost of diagnosing the P0851 SUBARU 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.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0851 SUBARU Meaning

The Transmission Control Module (TCM) monitors the Park/Neutral Switch signal. The TCM sets the OBDII code when the Park/Neutral Switch is not to factory specifications.

P0851 SUBARU More Information

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