AutoCodes – Nissan – P0850 2009 Nissan Pathfinder

P0850 2009 Nissan Pathfinder Code - Park/Neutral Switch

Quick Answer

When the shift position is P or N, Park/Neutral Position (PNP) switch is turned ON. Common causes include Misadjusted Park/Neutral Switch, Faulty Park/Neutral Switch, Park/Neutral Switch harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0850 2009 Nissan Pathfinder indicates Park/Neutral Switch.
Common causes: Common causes include Misadjusted Park/Neutral Switch, Faulty Park/Neutral Switch, Park/Neutral Switch harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,374

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0850 2009 Nissan Pathfinder Description

When the shift position is P or N, Park/Neutral Position (PNP) switch is turned ON. The Engine Control Module (ECM) detects the position because the continuity of the line (the ON signal) exists.
The Park/Neutral Position (PNP) switch assembly also indicates a transmission range switch to detect shift lever position.

OBDII Code P0850 2009 Nissan Pathfinder - Park/Neutral Switch - AutoCodes.com — P0850 2009 Nissan Pathfinder Code - Park/Neutral Switch

What does this mean?

What are the Possible Causes of the DTC P0850 2009 Nissan Pathfinder?

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

How to Fix the DTC P0850 2009 Nissan Pathfinder?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0850 2009 Nissan Pathfinder code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0850 2009 Nissan Pathfinder code?

Need more information on how to fix the P0850 2009 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0850 2009 Nissan Pathfinder Code

1. What does OBDII code P0850 for a 2009 Nissan Pathfinder indicate?

The OBDII code P0850 for a 2009 Nissan Pathfinder refers to an issue with the Park/Neutral Switch circuit.

2. What are the common symptoms of a P0850 code in a 2009 Nissan Pathfinder?

Common symptoms of a P0850 code may include difficulty starting the vehicle, problems shifting gears, or the engine not cranking.

3. What can cause the P0850 code to trigger in a 2009 Nissan Pathfinder?

The P0850 code in a 2009 Nissan Pathfinder is often triggered by a faulty Park/Neutral Switch, damaged wiring or connectors, or a malfunction in the transmission control module.

4. How can I diagnose the cause of a P0850 code in my 2009 Nissan Pathfinder?

To diagnose a P0850 code, you can use an OBDII scanner to retrieve the code, visually inspect the Park/Neutral Switch and its wiring, and perform a continuity test to check for any electrical issues.

5. Can I still drive my 2009 Nissan Pathfinder with a P0850 code?

It is not recommended to drive your 2009 Nissan Pathfinder with a P0850 code as it may lead to further transmission problems or safety issues. It's best to address the issue promptly.

6. How can I repair a P0850 code in my 2009 Nissan Pathfinder?

Repairing a P0850 code may involve replacing the Park/Neutral Switch, repairing or replacing damaged wiring or connectors, or reprogramming the transmission control module.

7. Is it necessary to reset the OBDII code after fixing the P0850 issue in a 2009 Nissan Pathfinder?

Yes, it is recommended to reset the OBDII code after fixing the P0850 issue in your 2009 Nissan Pathfinder. This can be done using an OBDII scanner or by disconnecting the car battery for a few minutes.

8. Can a DIY enthusiast fix a P0850 code in a 2009 Nissan Pathfinder?

While some DIY enthusiasts may be able to address a P0850 code by replacing the Park/Neutral Switch or checking wiring connections, it's advisable to seek professional help for a thorough diagnosis and repair.

9. How much does it cost to repair a P0850 code in a 2009 Nissan Pathfinder?

The cost of repairing a P0850 code in a 2009 Nissan Pathfinder can vary depending on the cause of the issue, parts needed for replacement, and labor costs. It's recommended to get estimates from auto repair shops.

10. Will a P0850 code in a 2009 Nissan Pathfinder affect fuel efficiency?

While the P0850 code itself may not directly impact fuel efficiency, unresolved issues with the Park/Neutral Switch can lead to other problems that may affect the overall performance of the vehicle, including fuel efficiency.