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U2473 Lincoln Code - Unexpected Vehicle Speed

Quick Answer

The U2473 diagnostic trouble code (DTC) for Lincoln vehicles indicates an unexpected vehicle speed condition. Common causes include Faulty wheel speed sensors, Malfunctioning transmission speed sensor, Wiring issues or shorts in the speed sensor 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
U2473 Lincoln indicates Unexpected Vehicle Speed.
Common causes
Common causes include Faulty wheel speed sensors, Malfunctioning transmission speed sensor, Wiring issues or shorts in the speed sensor 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 18, 2024
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Code U2473 Lincoln Description

The U2473 diagnostic trouble code (DTC) for Lincoln vehicles indicates an unexpected vehicle speed condition. This means that the vehicle's onboard computer has detected a discrepancy between the actual speed of the vehicle and the expected speed based on input from various sensors. This discrepancy can lead to a range of issues affecting the vehicle's performance, safety, and overall drivability.

OBDII Code U2473 Lincoln - Unexpected Vehicle Speed
U2473 Lincoln Code - Unexpected Vehicle Speed

Common Causes of U2473 Lincoln

  1. Faulty wheel speed sensors
  2. Malfunctioning transmission speed sensor
  3. Wiring issues or shorts in the speed sensor circuit
  4. Software glitches in the vehicle's electronic control modules
  5. Problems with the vehicle's ABS system

Symptoms of U2473 Lincoln

  1. Inaccurate speedometer readings
  2. Sudden acceleration or deceleration
  3. Transmission shifting irregularities
  4. Loss of control while driving

How to Fix U2473 Lincoln

  1. Diagnose the issue using a professional OBD-II scanner to pinpoint the exact cause of the unexpected vehicle speed code.
  2. Inspect and test the wheel speed sensors, transmission speed sensor, and related wiring for any faults or damage.
  3. Repair or replace any faulty sensors or wiring connections as needed.
  4. Clear the DTC from the vehicle's computer memory and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, consult a qualified mechanic or dealership for further diagnosis and repair.

Cost to Fix U2473 Lincoln

The typical repair costs for addressing an unexpected vehicle speed code can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of parts such as sensors and wiring harnesses can range from $100 to $300, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue may fall within the range of $200 to $500. However, it's important to note that actual repair costs can vary based on factors such as location, vehicle make and model, and the specific diagnosis time and labor rates at auto repair shops. It's recommended to obtain quotes from local repair facilities to get a more accurate estimate for addressing the unexpected vehicle speed code on a Lincoln vehicle.

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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 U2473 Lincoln Code

1. What are the common symptoms of OBDII code U2473 in a Lincoln vehicle?

- Common symptoms include erratic vehicle speed readings on the instrument cluster, incorrect speedometer readings, and intermittent speedometer failure.

2. What could cause the OBDII code U2473 Unexpected Vehicle Speed in a Lincoln?

- The code U2473 can be triggered by issues such as a faulty speed sensor, damaged wiring harness, or a malfunctioning instrument cluster.

3. How can I diagnose the OBDII code U2473 in my Lincoln for Unexpected Vehicle Speed?

- Diagnosis involves using a scan tool to retrieve the code, checking the speed sensor's signal, inspecting the wiring for damage, and testing the instrument cluster for proper operation.

4. Can a DIY enthusiast repair the OBDII code U2473 on a Lincoln?

- Depending on the cause, a DIY enthusiast may be able to repair the issue by replacing a faulty speed sensor, repairing damaged wiring, or recalibrating the instrument cluster.

5. Is it safe to drive my Lincoln with the OBDII code U2473 Unexpected Vehicle Speed?

- It is not recommended to drive the vehicle with the U2473 code present, as it can affect the speedometer accuracy and potentially lead to unsafe driving conditions.

6. How much does it typically cost to repair the OBDII code U2473 in a Lincoln?

- Repair costs can vary depending on the underlying cause, but replacing a speed sensor or repairing wiring issues may cost between $100 to $300, excluding labor charges.

7. Can a low battery voltage trigger the OBDII code U2473 Unexpected Vehicle Speed in a Lincoln?

- Yes, low battery voltage can sometimes cause erratic speedometer readings and trigger the U2473 code, so it's essential to ensure the battery is in good condition.

8. Will resetting the OBDII code U2473 on my Lincoln make the issue go away?

- Resetting the code may temporarily clear the warning light, but if the underlying problem persists, the code is likely to return until the root cause is addressed.

9. How long does it take to repair the OBDII code U2473 Unexpected Vehicle Speed in a Lincoln?

- The repair time can vary based on the complexity of the issue, but a straightforward repair like replacing a speed sensor can typically be completed within an hour or two.

10. Can a mechanic perform a software update to resolve the OBDII code U2473 Unexpected Vehicle Speed in a Lincoln?

- Yes, a mechanic may recommend performing a software update on the vehicle's control modules to address the U2473 code related to unexpected vehicle speed readings.

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