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Engine-Codes – Acura – P1709 Acura

P1709 Acura Code - Problem Transmission Gear Selection Switch Circuit

Quick Answer

The P1709 code for Acura vehicles indicates a problem with the transmission gear selection switch circuit. Common causes include Faulty gear selection switch, Damaged wiring or connectors in the circuit, Corrosion or moisture in the circuit. 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
P1709 Acura indicates Problem Transmission Gear Selection Switch Circuit.
Common causes
Common causes include Faulty gear selection switch, Damaged wiring or connectors in the circuit, Corrosion or moisture in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P1709 Acura Description

The P1709 code for Acura vehicles indicates a problem with the transmission gear selection switch circuit. This means that there is a malfunction in the circuit that controls the transmission gear selection, which can lead to issues with shifting gears properly. The gear selection switch circuit is responsible for sending signals to the vehicle's transmission control module (TCM) to select the appropriate gear based on the driver's input.

OBDII Code P1709 Acura - Problem Transmission Gear Selection Switch Circuit
P1709 Acura Code - Problem Transmission Gear Selection Switch Circuit

Common Causes of P1709 Acura

  1. Faulty gear selection switch
  2. Damaged wiring or connectors in the circuit
  3. Corrosion or moisture in the circuit
  4. Malfunctioning TCM
  5. Electrical issues in the transmission system

Symptoms of P1709 Acura

  1. Difficulty shifting gears
  2. Delayed gear changes
  3. Stuck in a particular gear
  4. Unusual noises during gear shifts
  5. Transmission slipping

How to Fix P1709 Acura

  1. Diagnose the issue by using a scan tool to retrieve the trouble codes and inspecting the gear selection switch circuit for any visible damage.
  2. Test the gear selection switch and wiring for continuity and proper voltage using a multimeter.
  3. Replace the faulty gear selection switch if it is found to be defective.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the trouble codes and test drive the vehicle to ensure the issue is resolved.

Cost to Fix P1709 Acura

The cost of repairing the P1709 code for Acura vehicles can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the cost of replacing a gear selection switch can range from $150 to $300, while repairing damaged wiring or connectors may cost around $100 to $200. The total cost for parts and labor can add up to approximately $300 to $500. However, it is essential to note that these are rough estimates, and actual repair costs may differ based on the vehicle's make and model, the location of the repair shop, and the extent of the damage. It is recommended to consult with a certified mechanic for a more accurate cost estimate.

What does this mean?

Tech Notes for P1709 Acura

P1706, P1705, P1709-Replace Acura / Honda V6 Transmission Range Switch - Neutral Safety Switch



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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 P1709 Acura Code

1. What are the common symptoms of OBDII code P1709 in an Acura related to the transmission gear selection switch circuit?

The common symptoms include difficulty shifting gears, the transmission stuck in one gear, and the Check Engine Light illuminated on the dashboard.

2. What could cause the OBDII code P1709 in an Acura?

The code P1709 can be triggered by a faulty transmission gear selection switch, damaged wiring or connectors in the circuit, or a malfunctioning transmission control module.

3. How can I diagnose the problem causing the OBDII code P1709 in my Acura?

To diagnose the issue, you can perform a visual inspection of the wiring and connectors, test the transmission gear selection switch for proper functioning, and use a scan tool to read live data from the transmission control module.

4. What are some repair tips for fixing the OBDII code P1709 in an Acura?

Repair tips include checking and repairing any damaged wiring or connectors, replacing the transmission gear selection switch if faulty, and reprogramming or replacing the transmission control module if necessary.

5. Can I drive my Acura with the OBDII code P1709 present?

It is not recommended to drive your Acura with the OBDII code P1709 present, as it can lead to further transmission issues and potentially cause safety hazards on the road.

6. How much does it typically cost to repair the OBDII code P1709 in an Acura?

The cost of repairing the OBDII code P1709 can vary depending on the exact cause of the issue. It is recommended to consult with a professional mechanic for an accurate diagnosis and cost estimate.

7. Can I clear the OBDII code P1709 in my Acura using a diagnostic tool?

Yes, you can clear the OBDII code P1709 using a diagnostic tool, but it is important to address and fix the underlying issue causing the code before clearing it to prevent future problems.

8. Is the OBDII code P1709 in an Acura a common issue among owners?

The OBDII code P1709 related to the transmission gear selection switch circuit is not extremely common but can occur in Acura vehicles, particularly in older models or vehicles with high mileage.

9. Will the OBDII code P1709 in my Acura reset itself after a certain number of driving cycles?

In some cases, the OBDII code P1709 may reset itself after a certain number of driving cycles if the underlying issue is no longer present. However, it is recommended to diagnose and repair the problem to prevent future occurrences.

10. Can a DIY enthusiast with some automotive knowledge fix the OBDII code P1709 in an Acura?

While some aspects of diagnosing and repairing the OBDII code P1709 can be tackled by a knowledgeable DIY enthusiast, it is recommended to seek professional help for a thorough diagnosis and proper repair to ensure the issue is fully resolved.

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