AutoCodes – RAM – U1418 RAM

U1418 RAM Code - Implausible Left Wheel Distance Signal Received

Quick Answer

The Powertrain Control Module (PCM) receives wheel speed and wheel distance Controller Area Network (CAN) C bus messages from the Anti-lock Brake (ABS) Module. Common causes include Faulty Vehicle Speed Sensor, Faulty Anti-lock Brake (ABS) Module, Anti-lock Brake Module harness is open or shorted. 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: U1418 RAM indicates Implausible Left Wheel Distance Signal Received.
Common causes: Common causes include Faulty Vehicle Speed Sensor, Faulty Anti-lock Brake (ABS) Module, Anti-lock Brake Module harness is open or shorted.
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 1,280

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 Feb 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1418 RAM Description

The Powertrain Control Module (PCM) receives wheel speed and wheel distance Controller Area Network (CAN) C bus messages from the Anti-lock Brake (ABS) Module. The Diagnostic Trouble Code (DTC) sets when the Powertrain Control Module either doesn't receive a bus message or receives an implausible bus message from the Anti-Lock Brake Module.

OBDII Code U1418 RAM - Implausible Left Wheel Distance Signal Received - AutoCodes.com — U1418 RAM Code - Implausible Left Wheel Distance Signal Received

What does this mean?

What are the Possible Causes of the DTC U1418 RAM?

Faulty Vehicle Speed Sensor
Faulty Anti-lock Brake (ABS) Module
Anti-lock Brake Module harness is open or shorted
Anti-lock Brake Module circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC U1418 RAM?

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 U1418 RAM 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 U1418 RAM Code

1. What are the common symptoms of OBDII code U1418 RAM - Implausible Left Wheel Distance Signal Received?

The common symptoms include ABS or traction control warning lights illuminating on the dashboard, issues with the speedometer accuracy, and potential loss of stability control.

2. What are the possible causes of OBDII code U1418 RAM?

The code U1418 RAM typically indicates a malfunction in the left wheel distance signal, which could be caused by a faulty wheel speed sensor, wiring issues, or problems with the ABS module.

3. How can I diagnose the cause of OBDII code U1418 RAM?

Diagnosing the issue involves checking the left wheel speed sensor for proper operation, inspecting the sensor wiring for damage or loose connections, and testing the ABS module for any faults using a diagnostic scanner.

4. Can I still drive my vehicle with OBDII code U1418 RAM present?

While the vehicle may still be drivable with this code, it is important to address the issue promptly to ensure proper functioning of the ABS and stability control systems.

5. How can I repair OBDII code U1418 RAM?

Repairs for code U1418 RAM may involve replacing the left wheel speed sensor, repairing damaged wiring, or reprogramming the ABS module to resolve the implausible signal issue.

6. Will resetting the trouble codes make OBDII code U1418 RAM disappear?

Simply clearing the trouble codes will not address the underlying issue causing code U1418 RAM. It is important to diagnose and repair the root cause of the problem to prevent the code from reappearing.

7. Can extreme weather conditions trigger OBDII code U1418 RAM?

Extreme weather conditions, such as excessive heat or moisture, can potentially affect the wheel speed sensor or wiring, leading to the triggering of code U1418 RAM.

8. How long does it take to repair OBDII code U1418 RAM?

The time taken to repair code U1418 RAM can vary depending on the exact cause of the issue, the availability of parts, and the expertise of the technician. It is best to consult with a professional for an accurate estimate.

9. Is OBDII code U1418 RAM a serious issue?

While code U1418 RAM may not always cause immediate safety concerns, it can impact the proper functioning of important vehicle systems like ABS and stability control. It is advisable to address this code promptly.

10. Can I repair OBDII code U1418 RAM myself?

Repairing code U1418 RAM may require technical knowledge and specialized tools, so it is recommended to seek assistance from a qualified mechanic or automotive technician to properly diagnose and fix the issue.