AutoCodes – Mercury – U0418 Mercury

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

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Brake System Control Module, Brake System Control Module harness is open or shorted, Brake System Control Module 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: U0418 Mercury indicates Invalid Data Received From Brake System Control Module.
Common causes: Common causes include Faulty Brake System Control Module, Brake System Control Module harness is open or shorted, Brake System Control Module 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 688

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 Apr 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0418 Mercury Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Brake System Control Module causing its integrity to be questioned.

OBDII Code U0418 Mercury - Invalid Data Received From Brake System Control Module - AutoCodes.com — U0418 Mercury Code - Invalid Data Received From Brake System Control Module

What does this mean?

What are the Possible Causes of the DTC U0418 Mercury?

Faulty Brake System Control Module
Brake System Control Module harness is open or shorted
Brake System Control Module circuit poor electrical connection

How to Fix the DTC U0418 Mercury?

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 U0418 Mercury 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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Need more information on how to fix the U0418 Mercury code? Get Access to Factory Service Manuals

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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 U0418 Mercury Code

1. What are the common symptoms of OBDII code U0418 in a Mercury vehicle?

When the OBDII code U0418 is triggered, you may experience issues such as the ABS warning light or traction control warning light coming on, decreased brake performance, or difficulty shifting gears.

2. What can cause the OBDII code U0418 to appear in a Mercury vehicle?

The OBDII code U0418, "Invalid Data Received From Brake System Control Module," can be caused by issues with the brake system control module, damaged wiring or connectors, software glitches, or communication errors within the vehicle's network.

3. How can I diagnose the OBDII code U0418 in my Mercury vehicle?

Diagnosing the OBDII code U0418 typically involves using an OBDII scanner to retrieve the specific code and then conducting a thorough inspection of the brake system control module, wiring, and connectors for any visible damage or loose connections.

4. What are some repair tips for addressing the OBDII code U0418 in a Mercury vehicle?

Repairing the OBDII code U0418 may involve resetting the code with an OBDII scanner, checking and repairing any damaged wiring or connectors, updating the vehicle's software, or replacing the brake system control module if necessary.

5. Can I drive my Mercury vehicle with the OBDII code U0418 present?

It is not recommended to drive your Mercury vehicle with the OBDII code U0418 present, as it can affect the proper functioning of the brake system and potentially compromise your safety on the road.

6. How much does it typically cost to repair the OBDII code U0418 in a Mercury vehicle?

The cost of repairing the OBDII code U0418 in a Mercury vehicle can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Is the OBDII code U0418 a common issue in Mercury vehicles?

The OBDII code U0418, while not extremely common, can occur in Mercury vehicles, especially in older models or vehicles with high mileage. Regular maintenance and inspections can help prevent this issue.

8. Can a DIY enthusiast fix the OBDII code U0418 issue in a Mercury vehicle?

While some aspects of diagnosing and repairing the OBDII code U0418 may be possible for experienced DIY enthusiasts, it is recommended to seek professional help, especially when dealing with complex electronic systems like the brake control module.

9. Are there any recalls related to the OBDII code U0418 in Mercury vehicles?

Recalls related to the OBDII code U0418 in Mercury vehicles may vary by model and year, so it is advisable to check with your local Mercury dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant recall information.

10. How can I prevent the OBDII code U0418 from appearing in my Mercury vehicle?

To prevent the OBDII code U0418 from appearing in your Mercury vehicle, it is essential to follow the manufacturer's recommended maintenance schedule, address any brake system issues promptly, and avoid driving with warning lights illuminated on the dashboard.