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Engine-Codes – Generic – U0418

U0418 Code - Invalid Data Received From Brake System Control Module

Quick Answer

The U0418 code indicates that the vehicle's onboard computer has detected invalid data being received from the Brake System Control Module. Common causes include Malfunctioning Brake System Control Module, Damaged wiring or connectors in the brake system, Faulty ABS wheel speed sensor. 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
U0418 indicates Invalid Data Received From Brake System Control Module.
Common causes
Common causes include Malfunctioning Brake System Control Module, Damaged wiring or connectors in the brake system, Faulty ABS wheel speed sensor.
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 07, 2024
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Code U0418 Description

The U0418 code indicates that the vehicle's onboard computer has detected invalid data being received from the Brake System Control Module. This module is responsible for managing the vehicle's braking system, including functions such as anti-lock brakes (ABS), traction control, and electronic stability control. When the control module sends incorrect or inconsistent data to the vehicle's main computer, it can lead to performance issues and potentially compromise the safety of the vehicle.

OBDII Code U0418 - Invalid Data Received From Brake System Control Module
U0418 Code - Invalid Data Received From Brake System Control Module

Common Causes of U0418

  1. Malfunctioning Brake System Control Module
  2. Damaged wiring or connectors in the brake system
  3. Faulty ABS wheel speed sensor
  4. Corroded electrical connections
  5. Software glitch in the vehicle's computer system

Symptoms of U0418

  1. Illuminated ABS warning light on the dashboard
  2. Traction control system not functioning properly
  3. Increased stopping distance when braking
  4. Loss of stability control during sudden maneuvers
  5. Vehicle going into "limp mode" with reduced power

How to Fix U0418

  1. Begin by using a diagnostic scanner to retrieve the specific trouble codes and pinpoint the issue.
  2. Inspect the wiring and connectors in the brake system for any damage or corrosion. Repair or replace as needed.
  3. Test the ABS wheel speed sensor for proper functionality. Replace if faulty.
  4. Check for any software updates for the vehicle's computer system and perform a reflash if necessary.
  5. If the issue persists, consider replacing the Brake System Control Module.

Cost to Fix U0418

The cost of repairing the U0418 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs for this issue can range from $200 to $600, including parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple sources before proceeding with the repair.

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Code U0418 Information for Specific Makes

  • U0418 Buick — Invalid Data Received From Brake System Control Module
  • U0418 Cadillac — Invalid Data Received From Brake System Control Module
  • U0418 Chevrolet — Invalid Data Received From Brake System Control Module
  • U0418 Chrysler — Invalid Data Received From Brake System Control Module
  • U0418 Dodge — Invalid Data Received From Brake System Control Module
  • U0418 Ford — Invalid Data Received From Brake System Control Module
  • U0418 GMC — Invalid Data Received From Brake System Control Module
  • U0418 Jeep — Invalid Data Received From Brake System Control Module
  • U0418 Lincoln — Invalid Data Received From Brake System Control Module
  • U0418 Mercury — Invalid Data Received From Brake System Control Module
  • U0418 RAM — Invalid Data Received From Brake System Control Module
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.

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