AutoCodes – Nissan – P0850 2008 Nissan Altima Sedan

P0850 2008 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 2008 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 6,094

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 2008 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 2008 Nissan Altima Sedan - Park/Neutral Switch - AutoCodes.com — P0850 2008 Nissan Altima Sedan Code - Park/Neutral Switch

What does this mean?

What are the Possible Causes of the DTC P0850 2008 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 2008 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 2008 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.

Need more information about the P0850 2008 Nissan Altima Sedan 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 2008 Nissan Altima Sedan Code

1. What does OBDII code P0850 on a 2008 Nissan Altima Sedan indicate?

The OBDII code P0850 on a 2008 Nissan Altima Sedan refers to an issue with the Park/Neutral Switch.

2. What are the common symptoms of a Park/Neutral Switch problem in a 2008 Nissan Altima Sedan?

Common symptoms of a Park/Neutral Switch issue may include difficulty starting the vehicle, the engine not cranking, or the vehicle not shifting out of Park.

3. What are the possible causes of OBDII code P0850 on a 2008 Nissan Altima Sedan?

Possible causes of OBDII code P0850 on a 2008 Nissan Altima Sedan include a faulty Park/Neutral Switch, damaged wiring, or a poor electrical connection.

4. How can I diagnose a Park/Neutral Switch problem in my 2008 Nissan Altima Sedan?

Diagnosing a Park/Neutral Switch issue may involve checking the switch for continuity, inspecting the wiring for damage, and scanning the vehicle's computer for trouble codes.

5. Can I drive my 2008 Nissan Altima Sedan with OBDII code P0850?

It is not recommended to drive your 2008 Nissan Altima Sedan with OBDII code P0850, as it may lead to starting or shifting issues that can affect the vehicle's safety and performance.

6. How can I repair a Park/Neutral Switch problem in my 2008 Nissan Altima Sedan?

Repairing a Park/Neutral Switch issue may involve replacing the faulty switch, repairing damaged wiring, or addressing any electrical connection issues.

7. Do I need specialized tools to fix OBDII code P0850 on my 2008 Nissan Altima Sedan?

While basic tools may be sufficient for some repairs, diagnosing and fixing a Park/Neutral Switch problem may require specialized tools like a multimeter or OBDII scanner.

8. Are there any DIY tips for troubleshooting OBDII code P0850 on a 2008 Nissan Altima Sedan?

DIY troubleshooting tips may include checking the fuse related to the Park/Neutral Switch, inspecting the switch for physical damage, and ensuring proper electrical connections.

9. How much does it cost to repair OBDII code P0850 on a 2008 Nissan Altima Sedan?

The cost of repairing OBDII code P0850 on a 2008 Nissan Altima Sedan can vary depending on the specific issue, parts needed, and labor rates at a repair shop.

10. Can a Park/Neutral Switch issue affect the performance of my 2008 Nissan Altima Sedan?

Yes, a Park/Neutral Switch problem can impact the starting, shifting, and overall performance of your 2008 Nissan Altima Sedan, making it important to address the issue promptly.