AutoCodes – Mercury – P1706 Mercury

P1706 Mercury Code - High Vehicle Speed Observed in Park

Quick Answer

If the transmission mode displays actual input or transmission gear display actual message is missing from the Body Control Module (BCM) for less than the programmed length of time, the PRNDL display remains in the last indication mode. Common causes include Faulty Floor shifter, Floor shifter harness is open or shorted, Floor shifter 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: P1706 Mercury indicates High Vehicle Speed Observed in Park.
Common causes: Common causes include Faulty Floor shifter, Floor shifter harness is open or shorted, Floor shifter 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 580

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 Jul 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1706 Mercury Description

If the transmission mode displays actual input or transmission gear display actual message is missing from the Body Control Module (BCM) for less than the programmed length of time, the PRNDL display remains in the last indication mode. If the BCM does not receive the transmission mode display actual input or transmission gear display actual message is missing from the TCM for longer than the programmed length of time. If the transmission mode display actual input or transmission gear display actual message is missing from the BCM, the Instrume Panel Cluster (IPC) defaults the PRNDL display to blank. A continuous memory Diagnostic Trouble Code (DTC) that sets if the IPC detects a short to ground on the park detect switch input, pulling the circuit low with a VSS input over 16 km/h (10 mph), indicating that the vehicle is in motion.

OBDII Code P1706 Mercury - High Vehicle Speed Observed in Park - AutoCodes.com — P1706 Mercury Code - High Vehicle Speed Observed in Park

What does this mean?

What are the Possible Causes of the DTC P1706 Mercury?

Faulty Floor shifter
Floor shifter harness is open or shorted
Floor shifter circuit poor electrical connection
Faulty Instrume Panel Cluster (IPC)
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1706 Mercury?

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 P1706 Mercury 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 P1706 Mercury code?

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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 Mercury Code

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

- Common symptoms include the check engine light coming on, high engine idle speed, and the vehicle feeling like it is in a higher gear than it should be.

2. What does the OBDII code P1706 in a Mercury indicate about high vehicle speed observed in park?

- This code indicates that the vehicle's powertrain control module (PCM) has detected a high vehicle speed signal while the vehicle is in park.

3. What are the potential causes of OBDII code P1706 in a Mercury?

- Causes can include a faulty vehicle speed sensor, wiring issues in the speed sensor circuit, a malfunctioning PCM, or a problem with the transmission control module.

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

- Diagnosing this code typically involves using a scan tool to check for the code, inspecting the vehicle speed sensor and its wiring, and testing the PCM and transmission control module for proper function.

5. Can I continue driving my Mercury with OBDII code P1706 present?

- It is not recommended to drive your vehicle with this code present, as it can lead to issues with the transmission and other drivability problems.

6. What are some repair tips for fixing OBDII code P1706 in a Mercury?

- Repair tips may include replacing the vehicle speed sensor, repairing any damaged wiring in the speed sensor circuit, or reprogramming the PCM or transmission control module.

7. Is it possible to clear the OBDII code P1706 in a Mercury without fixing the underlying issue?

- Clearing the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely return if the root cause is not fixed.

8. How much does it typically cost to repair OBDII code P1706 in a Mercury?

- The cost of repairs can vary depending on the specific cause of the code, but it may range from around $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P1706 in a Mercury, or is professional help recommended?

- While some DIY enthusiasts may be able to handle the repairs for this code, it is recommended to seek professional help, especially if dealing with complex transmission or PCM issues.

10. Are there any recalls or technical service bulletins related to OBDII code P1706 in Mercury vehicles?

- It is advisable to check with a Mercury dealership or the manufacturer's website for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or solutions provided.