Engine-CodesLincoln – P1706 Lincoln

P1706 Lincoln Code - High Vehicle Speed Observed in Park

Quick Answer

The diagnostic trouble code (DTC) P1706 for Lincoln vehicles indicates that the Engine Control Module (ECM) has detected high vehicle speed while the transmission is in the Park position. Common causes include Faulty vehicle speed sensor, Wiring issues in the transmission control system, Malfunctioning transmission control module. 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
P1706 Lincoln indicates High Vehicle Speed Observed in Park.
Common causes
Common causes include Faulty vehicle speed sensor, Wiring issues in the transmission control system, Malfunctioning transmission control module.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1706 Lincoln Description

The diagnostic trouble code (DTC) P1706 for Lincoln vehicles indicates that the Engine Control Module (ECM) has detected high vehicle speed while the transmission is in the Park position. This issue can have serious implications for the vehicle's systems and performance. When the vehicle is in Park, the transmission should prevent the wheels from moving, and the vehicle should not be able to reach high speeds. High vehicle speed in Park can cause safety hazards, as the vehicle may unexpectedly move, leading to accidents or damage to the transmission components.

OBDII Code P1706 Lincoln - High Vehicle Speed Observed in Park
P1706 Lincoln Code - High Vehicle Speed Observed in Park

Common Causes of P1706 Lincoln

  1. Faulty vehicle speed sensor
  2. Wiring issues in the transmission control system
  3. Malfunctioning transmission control module
  4. Software glitches in the ECM or TCM
  5. Mechanical issues in the transmission components

Symptoms of P1706 Lincoln

  1. The vehicle may lurch or move unexpectedly while in Park.
  2. The transmission may shift harshly or erratically.
  3. The Check Engine Light may illuminate on the dashboard.
  4. The vehicle may experience difficulty starting or shifting gears.

How to Fix P1706 Lincoln

  1. Begin by conducting a thorough diagnostic scan to retrieve the specific trouble codes and pinpoint the exact cause of the issue.
  2. Inspect the vehicle speed sensor and wiring for any signs of damage or corrosion. Replace any faulty components.
  3. Check the transmission control module for any software glitches or malfunctions. Update the software or replace the TCM if necessary.
  4. Perform a road test to verify that the issue has been resolved and that the vehicle no longer detects high speed in Park.
  5. Clear the DTCs from the ECM memory and ensure that the Check Engine Light is no longer illuminated.

Cost to Fix P1706 Lincoln

The typical repair costs for addressing a high vehicle speed observed in Park issue can range from $200 to $600, depending on the specific cause of the problem and the labor rates in your area. It's important to keep in mind that additional costs may be incurred if any transmission components require replacement. As labor rates at auto repair shops can vary, it's advisable to contact local shops for accurate pricing information based on your vehicle make and model.

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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 P1706 Lincoln Code

1. What are the common symptoms of OBDII code P1706 in a Lincoln?

- Common symptoms include the vehicle's engine stalling at idle, rough idling, or difficulty shifting gears.

2. What does the OBDII code P1706 in a Lincoln indicate?

- This code indicates that the vehicle's computer has detected high vehicle speed while the transmission is in Park.

3. What are the possible causes of OBDII code P1706 in a Lincoln?

- Possible causes include a faulty vehicle speed sensor, issues with the transmission control module, or wiring/connectivity problems.

4. How can I diagnose the OBDII code P1706 in my Lincoln?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the code, checking the vehicle speed sensor, and inspecting the transmission control module.

5. Can I drive my Lincoln with OBDII code P1706 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential transmission issues and further damage if left unresolved.

6. How can I repair OBDII code P1706 in my Lincoln?

- Repairing this code may involve replacing the faulty vehicle speed sensor, repairing wiring/connectivity issues, or reprogramming the transmission control module.

7. Will resetting the OBDII code P1706 in my Lincoln make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

8. Can a DIY enthusiast fix OBDII code P1706 in a Lincoln?

- Depending on the cause, a DIY enthusiast with automotive repair experience may be able to address this code, but professional diagnosis and repair are recommended for complex issues.

9. How much does it typically cost to repair OBDII code P1706 in a Lincoln?

- The cost of repairing this code can vary depending on the specific cause and required repairs, but it may range from a few hundred to over a thousand dollars at a dealership or repair shop.

10. Is OBDII code P1706 a common issue in Lincoln vehicles?

- While not as common as some other OBDII codes, P1706 can occur in Lincoln vehicles, particularly in older models or those with high mileage.

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