AutoCodes – Jeep – P0850 Jeep

P0850 Jeep Code - Park/Neutral Switch Input Circuit

Quick Answer

The Transmission Control Module (TCM) monitors the Park/Neutral Switch signal. Common causes include Faulty Park/Neutral Switch, Park/Neutral Switch harness is open or shorted, Park/Neutral Switch circuit poor electrical connection. 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 Jeep indicates Park/Neutral Switch Input Circuit.
Common causes: Common causes include Faulty Park/Neutral Switch, Park/Neutral Switch harness is open or shorted, Park/Neutral Switch circuit poor electrical connection.
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 18,707

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 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 Jeep Description

The Transmission Control Module (TCM) monitors the Park/Neutral Switch signal. The TCM sets the OBDII code when the Park/Neutral Switch is not to factory specifications.

OBDII Code P0850 Jeep - Park/Neutral Switch Input Circuit - AutoCodes.com — P0850 Jeep Code - Park/Neutral Switch Input Circuit

What does this mean?

What are the Possible Causes of the DTC P0850 Jeep?

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 Jeep?

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 Jeep 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 Jeep code?

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

Need Help with the Code?

Get the P0850 Jeep 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 Jeep Code

1. What are common symptoms of an OBDII code P0850 in a Jeep related to the Park/Neutral Switch Input Circuit?

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

2. What are the possible causes of an OBDII code P0850 in a Jeep?

The code P0850 in a Jeep is typically caused by a faulty park/neutral switch, damaged wiring or connectors in the circuit, or a malfunctioning transmission range sensor.

3. How can I diagnose the issue causing the OBDII code P0850 in my Jeep?

Diagnosing the issue may involve visually inspecting the wiring and connectors for any visible damage, testing the park/neutral switch for continuity, and using a scan tool to check for related transmission range sensor faults.

4. Can I still drive my Jeep with an OBDII code P0850 present?

It is not recommended to drive your Jeep with an OBDII code P0850, as it may lead to unpredictable shifting behaviors or an inability to start the vehicle. It's best to address the issue promptly.

5. How can I repair an OBDII code P0850 in my Jeep related to the Park/Neutral Switch Input Circuit?

Repairing the issue may involve replacing the park/neutral switch, repairing damaged wiring or connectors, or replacing the transmission range sensor, depending on the exact cause of the problem.

6. Is it possible to reset the OBDII code P0850 in a Jeep without fixing the underlying issue?

While clearing the code may temporarily turn off the check engine light, it will not fix the underlying issue causing the code. It's important to address the root cause of the problem to prevent further issues.

7. Can weather conditions affect the park/neutral switch and trigger an OBDII code P0850 in a Jeep?

Extreme weather conditions such as moisture or extreme temperatures can potentially affect the park/neutral switch or its circuit, leading to the triggering of the OBDII code P0850.

8. Will an OBDII code P0850 in a Jeep affect the vehicle's fuel efficiency?

The OBDII code P0850 related to the Park/Neutral Switch Input Circuit is more likely to impact the vehicle's drivability and starting ability rather than its fuel efficiency directly.

9. How long does it typically take to repair an OBDII code P0850 in a Jeep?

The repair time for an OBDII code P0850 can vary depending on the exact cause of the issue. Simple fixes like replacing a faulty park/neutral switch may take a couple of hours, while diagnosing and repairing wiring issues could take longer.

10. Are there any preventive maintenance steps I can take to avoid encountering an OBDII code P0850 in my Jeep?

Regularly inspecting the park/neutral switch, wiring, and connectors for any signs of wear or damage, and addressing any issues promptly, can help prevent the occurrence of an OBDII code P0850 in your Jeep.