AutoCodes – Nissan – P0850 2010 Nissan Altima Sedan

P0850 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan 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 4,944

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0850 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan - Park/Neutral Switch - AutoCodes.com — P0850 2010 Nissan Altima Sedan Code - Park/Neutral Switch

What does this mean?

What are the Possible Causes of the DTC P0850 2010 Nissan Altima Sedan?

Misadjusted Park/Neutral Switch
Faulty Park/Neutral Switch
Park/Neutral Switch harness is open or shorted
Park/Neutral Switch circuit poor electrical connection
Combination meter
TCM (CVT models)

How to Fix the DTC P0850 2010 Nissan Altima Sedan?

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 does this mean?

Code Tech Notes

For the CVT transmission the Park/Neutral Switch is located inside the shifter assembly, for the manual transmission it is located on the transmission (see picture)

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0850 2010 Nissan Altima Sedan 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.

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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 2010 Nissan Altima Sedan Code

1. What does OBDII code P0850 on a 2010 Nissan Altima Sedan indicate?

This code indicates a malfunction in the Park/Neutral Switch circuit.

2. What are the common symptoms of a P0850 code in a 2010 Nissan Altima Sedan?

Common symptoms include difficulty starting the vehicle, the engine not cranking, and the inability to shift out of Park.

3. What are some possible causes of the P0850 code in a 2010 Nissan Altima Sedan?

Possible causes include a faulty Park/Neutral Switch, damaged wiring or connectors in the circuit, or a malfunctioning transmission range sensor.

4. How can I diagnose the P0850 code in my 2010 Nissan Altima Sedan?

Diagnosis typically involves checking the Park/Neutral Switch for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to monitor the transmission range sensor's data.

5. Can I drive my 2010 Nissan Altima Sedan with a P0850 code?

It is not recommended to drive the vehicle with a P0850 code, as it can lead to starting issues or transmission problems.

6. How can I repair the P0850 code in my 2010 Nissan Altima Sedan?

Repairing the P0850 code may involve replacing the Park/Neutral Switch, repairing damaged wiring or connectors, or recalibrating the transmission range sensor.

7. Can I reset the P0850 code in my 2010 Nissan Altima Sedan without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it will likely return if the underlying issue is not addressed.

8. Is the P0850 code in a 2010 Nissan Altima Sedan a serious issue?

The P0850 code can cause starting and shifting problems, so it is recommended to address it promptly to avoid potential safety hazards or further damage.

9. Can weather conditions affect the occurrence of a P0850 code in a 2010 Nissan Altima Sedan?

Extreme weather conditions can sometimes impact the Park/Neutral Switch operation, potentially triggering the P0850 code.

10. How long does it typically take to repair the P0850 code in a 2010 Nissan Altima Sedan?

The repair time for the P0850 code can vary depending on the exact cause, but it may take anywhere from a few hours to a day for diagnosis and repair.