AutoCodesGeneric – U2471

U2471 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 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 1,320
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 17, 2020
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Code U2471 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 - Unexpected PRNDL State - AutoCodes.com
U2471 Code - Unexpected PRNDL State

What are the Possible Causes of the DTC U2471?

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

How to Fix the DTC U2471?

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 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 code?

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Need Help with the Code?

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Information for Specific Makes

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 Code

What does the OBDII code U2471 mean?

The OBDII code U2471 refers to an "Unexpected PRNDL State," indicating that the vehicle's transmission control module has detected a mismatch or unexpected value in the gear selection position.

What are the common symptoms associated with U2471?

Common symptoms may include the vehicle not shifting properly, erratic shifting, the check engine light being illuminated, or the transmission going into limp mode.

What could cause the U2471 code to trigger?

Causes can include faulty transmission range sensors, wiring issues, poor connections, a malfunctioning transmission control module, or software issues within the vehicle’s control systems.

How can I diagnose the U2471 code?

To diagnose U2471, use an OBDII scanner to check for related codes, inspect the transmission range sensor and wiring for damage, and verify the proper function of the transmission control module.

What repairs are recommended for a vehicle with the U2471 code?

Repairs may involve replacing a faulty transmission range sensor, repairing or replacing damaged wiring, updating or reprogramming the transmission control module, or addressing any other underlying issues causing the code.

Can I drive my vehicle with the U2471 code?

While it’s possible to drive with the U2471 code, it is not recommended as it may lead to transmission issues or further damage. It’s best to address the code promptly.

Will clearing the U2471 code fix the issue?

Clearing the code may temporarily turn off the check engine light, but if the underlying issue is not resolved, the code will likely reappear.

Is U2471 a serious issue?

Yes, U2471 can indicate a serious issue with the transmission system, which could lead to unsafe driving conditions or further damage if not addressed.

How much does it typically cost to repair U2471?

Repair costs can vary widely depending on the root cause, ranging from minor wiring repairs to more significant fixes like replacing the transmission control module, potentially costing anywhere from $100 to over $1,000.

Can I fix the U2471 code myself?

If you have experience with automotive diagnostics and repairs, you may be able to troubleshoot and fix minor issues like wiring or sensor replacements. However, for complex issues, professional help may be necessary.

Discuss the causes and fixes for U2471 OBDII Code

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