AutoCodes – Dodge – U140A Dodge

U140A Dodge Code - Implausible Right Front Wheel Speed Signal Received

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Powertrain Control Module (PCM) detects an implausible Right Front Wheel Speed signal over the Controller Area Network (CAN) bus from the Anti-Lock Brake (ABS) Module. Common causes include Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted, Right Front Wheel Speed Sensor 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: U140A Dodge indicates Implausible Right Front Wheel Speed Signal Received.
Common causes: Common causes include Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted, Right Front Wheel Speed Sensor 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 6,743

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 May 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U140A Dodge Description

OBDII Code U140A Dodge - Implausible Right Front Wheel Speed Signal Received - AutoCodes.com — U140A Dodge Code - Implausible Right Front Wheel Speed Signal Received

What does this mean?

What are the Possible Causes of the DTC U140A Dodge?

Faulty Right Front Wheel Speed Sensor
Right Front Wheel Speed Sensor harness is open or shorted
Right Front Wheel Speed Sensor circuit poor electrical connection
Faulty Anti-Lock Brake System (ABS) Module

How to Fix the DTC U140A Dodge?

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 U140A Dodge 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.

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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 U140A Dodge Code

1. What are the common symptoms of OBDII code U140A in a Dodge vehicle?

The common symptoms include traction control and ABS warning lights illuminated on the dashboard, erratic speedometer readings, and potential loss of traction control functionality.

2. What does the OBDII code U140A "Implausible Right Front Wheel Speed Signal Received" mean?

The code indicates that the right front wheel speed sensor is sending a signal that the vehicle's control module determines to be implausible or incorrect.

3. What are the possible causes of OBDII code U140A in a Dodge vehicle?

Possible causes include a faulty right front wheel speed sensor, damaged wiring or connectors related to the sensor, wheel speed sensor debris or metal shavings, or a malfunctioning ABS module.

4. How can I diagnose the source of the U140A code in my Dodge vehicle?

Diagnosis involves visually inspecting the right front wheel speed sensor and its wiring, checking for any physical damage or contamination. Using a diagnostic scan tool to read live data and perform tests on the sensor may also help pinpoint the issue.

5. Can I still drive my Dodge vehicle with the U140A code present?

It is generally not recommended to drive with the U140A code present, as it can affect the proper functioning of the ABS and traction control systems, potentially compromising vehicle safety.

6. How can I repair the U140A code in my Dodge vehicle?

Repairing the U140A code may involve replacing the right front wheel speed sensor, repairing or replacing damaged wiring, cleaning sensor connections, or resetting the ABS module after the issue is resolved.

7. Will the U140A code reset itself after the issue is fixed?

After repairing the underlying issue causing the U140A code, you may need to use a diagnostic scan tool to clear the code and reset the vehicle's computer system to turn off the warning lights.

8. Is the U140A code specific to certain Dodge models or years?

The U140A code related to the right front wheel speed signal can occur in various Dodge models equipped with ABS and traction control systems, such as Dodge Charger, Dodge Challenger, or Dodge Ram trucks.

9. Can weather conditions or road debris trigger the U140A code in a Dodge vehicle?

Extreme weather conditions, road debris, or driving in harsh environments can potentially cause sensor malfunctions or signal disruptions leading to the U140A code in a Dodge vehicle.

10. Do I need professional help to diagnose and repair the U140A code in my Dodge vehicle?

While some DIY enthusiasts may be able to diagnose and repair the U140A code themselves, seeking professional help from a qualified mechanic or dealership with access to specialized tools and expertise is recommended for accurate diagnosis and proper repair.