AutoCodes – Subaru – P1591 Subaru

P1591 Subaru Code - Neutral Position Switch Circuit Low Input

Quick Answer

P1591 Subaru indicates Neutral Position Switch Circuit Low Input. Common causes include Faulty Neutral Position Switch, Neutral Position Switch harness is open or shorted, Neutral Position 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
P1591 Subaru indicates Neutral Position Switch Circuit Low Input.
Common causes
Common causes include Faulty Neutral Position Switch, Neutral Position Switch harness is open or shorted, Neutral Position 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 17,566
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 20, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1591 Subaru Description

OBDII Code P1591 Subaru - Neutral Position Switch Circuit Low Input - AutoCodes.com
P1591 Subaru Code - Neutral Position Switch Circuit Low Input

What are the Possible Causes of the DTC P1591 Subaru?

  • Faulty Neutral Position Switch
  • Neutral Position Switch harness is open or shorted
  • Neutral Position Switch circuit poor electrical connection

How to Fix the DTC P1591 Subaru?

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 P1591 Subaru 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 P1591 Subaru code?

Need more information on how to fix the P1591 Subaru code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1591 Subaru 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 P1591 Subaru Code

1. What are the common symptoms of OBDII code P1591 in a Subaru related to the Neutral Position Switch Circuit Low Input?

- Common symptoms include issues with starting the vehicle, difficulty shifting gears, and the inability to engage the transmission into the correct gear.

2. What are the possible causes of the Neutral Position Switch Circuit Low Input code (P1591) in a Subaru?

- The code can be triggered by a faulty neutral position switch, damaged wiring or connectors in the circuit, or a malfunctioning transmission control module.

3. How can I diagnose the cause of OBDII code P1591 in my Subaru?

- A thorough inspection of the neutral position switch, circuit wiring, connectors, and the transmission control module is recommended. Using a diagnostic scanner to retrieve and analyze the code can also help pinpoint the issue.

4. Can I still drive my Subaru with the P1591 code present?

- It is not recommended to continue driving your Subaru with the P1591 code active, as it can lead to transmission issues and potential safety hazards. It's best to address the problem promptly.

5. Are there any DIY repair tips for fixing the Neutral Position Switch Circuit Low Input issue in a Subaru?

- DIY repair tips include checking and cleaning the neutral position switch, inspecting and repairing any damaged wiring or connectors, and resetting the trouble code after making necessary repairs.

6. How much does it typically cost to repair OBDII code P1591 in a Subaru at a mechanic or dealership?

- The cost of repair can vary depending on the exact cause of the issue and the labor rates of the service provider. It's advisable to get multiple quotes for a more accurate estimate.

7. Can resetting the trouble code fix the P1591 issue in my Subaru temporarily?

- Resetting the trouble code may temporarily clear the warning light, but it will not fix the underlying issue causing the code. It's crucial to diagnose and address the root cause of the problem.

8. Is it possible for a DIY enthusiast to replace the neutral position switch in a Subaru to resolve the P1591 code?

- Yes, replacing the neutral position switch can be a DIY project for those with the necessary tools and mechanical skills. It's important to follow the manufacturer's instructions and safety precautions.

9. Will driving with the P1591 code in my Subaru cause further damage to the transmission?

- Continuing to drive with the P1591 code can potentially cause further damage to the transmission due to incorrect gear engagement and shifting issues. It's best to address the problem promptly.

10. How long does it typically take to repair the Neutral Position Switch Circuit Low Input issue in a Subaru?

- The repair time can vary depending on the exact cause of the problem and the expertise of the technician. In general, it may take a few hours to a full day to diagnose and fix the issue.

Discuss the causes and fixes for P1591 Subaru OBDII Code

Code P1591 Subaru comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play