AutoCodes – Nissan – P0850 2006 Nissan Maxima

P0850 2006 Nissan Maxima 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 2006 Nissan Maxima 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,399

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0850 2006 Nissan Maxima 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 2006 Nissan Maxima - Park/Neutral Switch - AutoCodes.com — P0850 2006 Nissan Maxima Code - Park/Neutral Switch

What does this mean?

What are the Possible Causes of the DTC P0850 2006 Nissan Maxima?

Misadjusted Park/Neutral Switch
Faulty Park/Neutral Switch
Park/Neutral Switch harness is open or shorted
Park/Neutral Switch circuit poor electrical connection
Unified meter and A/C amp.
TCM

How to Fix the DTC P0850 2006 Nissan Maxima?

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 2006 Nissan Maxima 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 2006 Nissan Maxima code?

Need more information on how to fix the P0850 2006 Nissan Maxima code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0850 2006 Nissan Maxima code diagnosed by a professional: Find a repair shop in your area

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 2006 Nissan Maxima Code

1. What does the OBDII code P0850 mean on a 2006 Nissan Maxima?

P0850 indicates a problem with the Park/Neutral Position Switch, which monitors the gear position and communicates it to the vehicle's engine control module (ECM).

2. What are the common symptoms of code P0850 in a 2006 Nissan Maxima?

Symptoms may include difficulty starting the engine, the inability to shift out of park, erratic transmission behavior, or the check engine light being illuminated.

3. What causes the P0850 code to appear in a 2006 Nissan Maxima?

Possible causes include a faulty Park/Neutral Position Switch, damaged or corroded wiring, a loose electrical connection, or a malfunction in the transmission control module (TCM).

4. Can I still drive my 2006 Nissan Maxima if it has code P0850?

Itâ€™s not recommended to drive with this code as it can affect the transmissionâ€™s operation and lead to safety issues, such as the vehicle starting in the wrong gear.

5. How do I diagnose a P0850 code on my 2006 Nissan Maxima?

Begin by checking the Park/Neutral Position Switch for damage or misalignment, inspecting the wiring and connectors, and using a multimeter to test for proper voltage and continuity.

6. How do I fix the P0850 code on a 2006 Nissan Maxima?

Repairs may involve replacing the Park/Neutral Position Switch, repairing damaged wiring, cleaning corroded connectors, or reprogramming/repairing the TCM if necessary.

7. How much does it cost to repair the P0850 code on a 2006 Nissan Maxima?

The cost can vary, but replacing the Park/Neutral Position Switch typically ranges from $150 to $300, including parts and labor.

8. Can a dead battery cause code P0850 on a 2006 Nissan Maxima?

While a dead battery is unlikely to directly cause P0850, low voltage can lead to erratic signals from the Park/Neutral Position Switch, triggering the code.

9. How do I reset the P0850 code on my 2006 Nissan Maxima after repairs?

Use an OBDII scanner to clear the code, or disconnect the car battery for a few minutes. Ensure the issue is resolved first to prevent the code from returning.

10. Is the P0850 code related to the transmission in a 2006 Nissan Maxima?

Yes, the P0850 code is related to the transmission as it involves the Park/Neutral Position Switch, which informs the vehicle's systems of the gear selection.