AutoCodes – Mercury – U0131 Mercury

U0131 Mercury Code - Lost Communication with Power Steering 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 Power Steering Control Module, Power Steering Control Module harness is open or shorted, Power Steering 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: U0131 Mercury indicates Lost Communication with Power Steering Control Module.
Common causes: Common causes include Faulty Power Steering Control Module, Power Steering Control Module harness is open or shorted, Power Steering 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 741

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 Mar 27, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0131 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 need to be exchanged on the serial data circuits. The CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Power Steering Control Module has not been received.

OBDII Code U0131 Mercury - Lost Communication with Power Steering Control Module - AutoCodes.com — U0131 Mercury Code - Lost Communication with Power Steering Control Module

What does this mean?

What are the Possible Causes of the DTC U0131 Mercury?

Faulty Power Steering Control Module
Power Steering Control Module harness is open or shorted
Power Steering Control Module circuit poor electrical connection

How to Fix the DTC U0131 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 U0131 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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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 U0131 Mercury Code

1. What are the common symptoms of OBDII code U0131 in a Mercury regarding the power steering control module?

The common symptoms include loss of power steering assistance, illuminated power steering warning light on the dashboard, and difficulty steering the vehicle.

2. What are the possible causes of the U0131 code indicating lost communication with the power steering control module in a Mercury?

Possible causes may include a faulty power steering control module, damaged wiring or connectors, a blown fuse related to the power steering system, or a software glitch in the vehicle's computer system.

3. How can I diagnose the U0131 code related to the power steering control module in my Mercury?

Diagnosis involves using an OBDII scanner to retrieve the specific error code, checking the wiring and connectors for any visible damage, inspecting the power steering control module for signs of malfunction, and testing the relevant fuses.

4. Is it safe to drive my Mercury with the U0131 code triggered due to lost communication with the power steering control module?

It is not recommended to drive the vehicle with the U0131 code active, as it can lead to unpredictable power steering behavior and potentially compromise safety on the road.

5. Can I reset the U0131 code in my Mercury to see if it reoccurs, or should I address the issue immediately?

While it is possible to reset the code temporarily, it is crucial to address the underlying issue causing the U0131 code as soon as possible to prevent further damage and ensure the proper functioning of the power steering system.

6. What are some repair tips for resolving the U0131 code related to the power steering control module in a Mercury?

Repair tips may include checking and repairing any damaged wiring or connectors, replacing the faulty power steering control module if necessary, ensuring the fuses are intact, and performing a software update if recommended by the manufacturer.

7. Can a DIY enthusiast with basic automotive knowledge fix the U0131 code indicating lost communication with the power steering control module in a Mercury?

While some simple checks and repairs can be done by a DIY enthusiast, diagnosing and fixing complex issues related to the power steering system may require professional expertise and specialized tools.

8. How much does it typically cost to repair the U0131 code in a Mercury caused by lost communication with the power steering control module?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Will fixing the U0131 code in my Mercury improve the overall performance and safety of the vehicle?

Yes, addressing the U0131 code and restoring communication with the power steering control module is essential for ensuring proper power steering functionality, improving vehicle handling, and maintaining safety while driving.

10. Are there any recalls or technical service bulletins related to the U0131 code and the power steering control module in Mercury vehicles?

It is advisable to check with a certified Mercury dealership or the manufacturer's website for any recalls or technical service bulletins specific to the U0131 code and power steering control module issues in your vehicle.