AutoCodes – Nissan – P0850 2007 Nissan Sentra

P0850 2007 Nissan Sentra 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 2007 Nissan Sentra 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 6,221

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 Dec 25, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0850 2007 Nissan Sentra 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 2007 Nissan Sentra - Park/Neutral Switch - AutoCodes.com — P0850 2007 Nissan Sentra Code - Park/Neutral Switch

What does this mean?

What are the Possible Causes of the DTC P0850 2007 Nissan Sentra?

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 2007 Nissan Sentra?

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 2007 Nissan Sentra 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 2007 Nissan Sentra code?

Need more information on how to fix the P0850 2007 Nissan Sentra code? Get Access to Factory Service Manuals

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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 2007 Nissan Sentra Code

1. What does the OBDII code P0850 mean on a 2007 Nissan Sentra?

P0850 indicates a malfunction in the Park/Neutral Position (PNP) switch circuit, which monitors whether the vehicle is in Park or Neutral.

2. What are the common symptoms of a P0850 code in a 2007 Nissan Sentra?

Symptoms include difficulty starting the car, the engine not cranking, transmission shifting issues, or the Check Engine Light being illuminated.

3. What causes the P0850 code to appear in a 2007 Nissan Sentra?

Common causes include a faulty Park/Neutral Position switch, damaged wiring or connectors, or issues with the transmission control module (TCM).

4. Can a P0850 code cause the car not to start?

Yes, if the Park/Neutral Position switch is malfunctioning, the vehicle may not recognize that itâ€™s in Park or Neutral and may prevent the engine from starting.

5. How do you diagnose a P0850 code in a 2007 Nissan Sentra?

Diagnosis involves checking the Park/Neutral Position switch, inspecting wiring and connectors for damage, and using a scan tool to monitor the switch's data.

6. Can you drive with a P0850 code on a 2007 Nissan Sentra?

Driving with a P0850 code is not recommended, as it can lead to starting issues or transmission problems that may worsen over time.

7. How do you fix the P0850 code on a 2007 Nissan Sentra?

Repairs may include replacing the Park/Neutral Position switch, repairing damaged wiring or connectors, or reprogramming the TCM if necessary.

8. How much does it cost to fix a P0850 code on a 2007 Nissan Sentra?

Repair costs can vary but typically range from $100 to $300, depending on whether the issue is with the switch, wiring, or TCM.

9. Can a weak battery cause a P0850 code on a 2007 Nissan Sentra?

While uncommon, a weak or failing battery can cause electrical issues that might trigger a P0850 code. Always check the batteryâ€™s health when diagnosing.

10. Is the P0850 code related to the transmission in a 2007 Nissan Sentra?

Yes, the P0850 code is related to the transmission system, as the Park/Neutral Position switch plays a role in ensuring proper gear selection and vehicle starting.