AutoCodes – Generic – U1418

U1418 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 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 9,498

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

What does this mean?

What are the Possible Causes of the DTC U1418?

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?

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 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 U1418 code?

Need more information on how to fix the U1418 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1418 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U1418 Chrysler — Implausible Left Wheel Distance Signal Received
U1418 Dodge — Implausible Left Wheel Distance Signal Received
U1418 Jeep — Implausible Left Wheel Distance Signal Received
U1418 RAM — Implausible Left Wheel Distance Signal Received

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 Code

1. What are the common symptoms of OBDII code U1418?

- Common symptoms include inaccurate speedometer readings, ABS system malfunctions, traction control issues, and illuminated warning lights on the dashboard.

2. What does the OBDII code U1418 indicate?

- The code U1418 indicates that the vehicle's onboard computer has detected an implausible signal related to the left wheel distance.

3. What are the possible causes of code U1418?

- Possible causes of code U1418 include damaged wheel speed sensors, faulty ABS module, wiring issues, sensor alignment problems, or a malfunctioning electronic control unit (ECU).

4. How can I diagnose the U1418 code?

- Diagnosing the U1418 code involves using a diagnostic scanner to retrieve the code, checking the wheel speed sensor connections, inspecting wiring for damage, and performing a visual inspection of the ABS components.

5. Can I continue driving with the U1418 code present?

- It is not recommended to drive with the U1418 code present, as it can affect the vehicle's stability control systems and lead to unsafe driving conditions.

6. How can I repair the U1418 code?

- Repairing the U1418 code may involve replacing a faulty wheel speed sensor, repairing damaged wiring, realigning sensors, or recalibrating the ABS system. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. Will resetting the trouble codes make the U1418 code disappear?

- Resetting the trouble codes may temporarily clear the U1418 code, but it will likely reappear if the underlying issue causing the fault is not addressed and repaired.

8. Is the U1418 code specific to a certain vehicle make or model?

- The U1418 code can occur in various vehicle makes and models that are equipped with an OBDII system and ABS system.

9. Can weather conditions affect the appearance of the U1418 code?

- Extreme weather conditions, such as heavy rain or snow, can potentially affect the wheel speed sensors and trigger the U1418 code due to interference with sensor signals.

10. How much does it typically cost to repair the U1418 code?

- The cost of repairing the U1418 code can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to get a diagnostic assessment from a qualified mechanic to determine the exact repair cost.