AutoCodes – Mercury – U024C Mercury

U024C Mercury Code - Lost Communication With Seat Control Module 'H'

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 Seat Control Module 'H', Seat Control Module 'H' harness is open or shorted, Seat Control Module 'H' 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: U024C Mercury indicates Lost Communication With Seat Control Module 'H'.
Common causes: Common causes include Faulty Seat Control Module 'H', Seat Control Module 'H' harness is open or shorted, Seat Control Module 'H' 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 675

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 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U024C 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. 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 Seat Control Module 'H' has not been received.

OBDII Code U024C Mercury - Lost Communication With Seat Control Module 'H' - AutoCodes.com — U024C Mercury Code - Lost Communication With Seat Control Module 'H'

What does this mean?

What are the Possible Causes of the DTC U024C Mercury?

Faulty Seat Control Module 'H'
Seat Control Module 'H' harness is open or shorted
Seat Control Module 'H' circuit poor electrical connection

How to Fix the DTC U024C 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 U024C 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 U024C Mercury Code

1. What are the common symptoms of OBDII code U024C in a Mercury vehicle?

- Common symptoms include malfunctioning power seats, non-responsive seat adjustments, and warning lights on the dashboard.

2. What does the OBDII code U024C Mercury signify?

- The code indicates a communication failure with the Seat Control Module 'H' in the vehicle.

3. What are the possible causes of the U024C code in a Mercury?

- The code may be triggered by wiring issues, a faulty seat control module, a defective connection, or a communication breakdown in the vehicle's network.

4. How can I diagnose the U024C code in my Mercury?

- Diagnosing the code typically involves using a diagnostic scanner to retrieve the specific details of the communication failure with the Seat Control Module 'H'.

5. Can I still drive my Mercury with the U024C code present?

- It is generally safe to drive the vehicle with the U024C code, but it is recommended to address the issue promptly to avoid further electrical problems.

6. How can I repair the U024C code in my Mercury?

- Repairing the code may involve checking and repairing wiring connections, replacing the seat control module, or reprogramming the module to restore communication.

7. Is it necessary to visit a mechanic for the U024C code in my Mercury?

- While it is possible to address the issue yourself if you have the necessary tools and expertise, consulting a mechanic is recommended for accurate diagnosis and repair.

8. Can resetting the vehicle's computer system clear the U024C code?

- Resetting the computer system may temporarily clear the code, but if the underlying issue causing the communication failure is not addressed, the code is likely to reappear.

9. Are there any preventive measures to avoid the U024C code in a Mercury?

- Regularly inspecting the vehicle's wiring, connectors, and modules can help prevent communication failures that trigger codes like U024C.

10. How long does it typically take to repair the U024C code in a Mercury?

- The repair time for the U024C code can vary depending on the exact cause of the communication failure, but it may take a few hours to a day to diagnose and fix the issue.