AutoCodes – Mercury – U2471 Mercury

U2471 Mercury Code - Unexpected PRNDL State

Quick Answer

The Parking Aid Module (PAM) receives the Park-Reverse-Neutral-Drive-Low (PRNDL) state from the Instrument Cluster (IC) as a gateway message from the Transmission Control Module (TCM). Common causes include Faulty Instrument Cluster (IC), Instrument Cluster harness is open or shorted, Instrument Cluster 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: U2471 Mercury indicates Unexpected PRNDL State.
Common causes: Common causes include Faulty Instrument Cluster (IC), Instrument Cluster harness is open or shorted, Instrument Cluster 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 632

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 Jun 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2471 Mercury Description

The Parking Aid Module (PAM) receives the Park-Reverse-Neutral-Drive-Low (PRNDL) state from the Instrument Cluster (IC) as a gateway message from the Transmission Control Module (TCM). The Diagnostic Trouble Code (DTC) will set when a continuous and on-demand DTC that sets when the PAM receives an unknown PRNDL state message from the IC.

OBDII Code U2471 Mercury - Unexpected PRNDL State - AutoCodes.com — U2471 Mercury Code - Unexpected PRNDL State

What does this mean?

What are the Possible Causes of the DTC U2471 Mercury?

Faulty Instrument Cluster (IC)
Instrument Cluster harness is open or shorted
Instrument Cluster circuit poor electrical connection

How to Fix the DTC U2471 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 U2471 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 U2471 Mercury code?

Need more information on how to fix the U2471 Mercury code? Get Access to Factory Service Manuals

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Get the U2471 Mercury 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 U2471 Mercury Code

1. What are the common symptoms of OBDII code U2471 (Unexpected PRNDL State) in a Mercury vehicle?

- Common symptoms include the gear indicator displaying the wrong gear, difficulty shifting gears, and potential transmission issues.

2. What can cause the OBDII code U2471 to trigger in a Mercury?

- This code can be triggered by a faulty transmission range sensor, damaged wiring, or issues with the transmission control module.

3. How serious is the Unexpected PRNDL State code (U2471) in a Mercury vehicle?

- Ignoring this code can lead to potential transmission problems, incorrect gear engagement, and unsafe driving conditions. It is recommended to address it promptly.

4. Can I continue driving my Mercury with the U2471 code present?

- It is not recommended to continue driving the vehicle with the U2471 code present, as it can lead to further damage to the transmission system.

5. What are some DIY repair tips for the OBDII code U2471 in a Mercury?

- Check the transmission range sensor for proper alignment and functionality, inspect the wiring harness for any damage, and reset the code to see if it reoccurs.

6. How much does it typically cost to repair the Unexpected PRNDL State code in a Mercury?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

7. Can a mechanic easily diagnose the U2471 code in a Mercury?

- Yes, a qualified mechanic can use a diagnostic scanner to read the code, perform further testing to identify the root cause, and recommend the necessary repairs.

8. Is it possible for the U2471 code to be a false alarm in a Mercury?

- While rare, false alarms can occur due to intermittent sensor issues or temporary glitches. It is recommended to monitor the situation and reset the code to see if it reappears.

9. Will resetting the OBDII code U2471 make it go away permanently in a Mercury?

- Resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

10. How can I prevent the Unexpected PRNDL State code (U2471) from occurring in my Mercury in the future?

- Regular maintenance, such as checking and replacing worn-out transmission components, ensuring proper wiring connections, and addressing any warning signs promptly, can help prevent the U2471 code from occurring.