AutoCodes – Cadillac – U2504 Cadillac

U2504 Cadillac Code - Invalid Data Received From Trailer Brake Driver Control Module

Quick Answer

Some devices are constantly receiving information from other devices through serial data communication network. Common causes include Reprogram Trailer Brake Driver Control Module, Faulty Trailer Brake Driver Control Module, Trailer Brake Driver Control 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: U2504 Cadillac indicates Invalid Data Received From Trailer Brake Driver Control Module.
Common causes: Common causes include Reprogram Trailer Brake Driver Control Module, Faulty Trailer Brake Driver Control Module, Trailer Brake Driver Control 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 496

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 Jun 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2504 Cadillac Description

Some devices are constantly receiving information from other devices through serial data communication network. The invalid data code will be set when a receiving device detects a discrepancy in the information it receives from another device causing its integrity to be questioned. The symptom byte listed in the Diagnostic Trouble Code (DTC) Descriptor is for engineering reference only. No external circuit diagnosis is involved. The DTC will set if the Trailer Brake Driver Control Module is not configured properly.

OBDII Code U2504 Cadillac - Invalid Data Received From Trailer Brake Driver Control Module - AutoCodes.com — U2504 Cadillac Code - Invalid Data Received From Trailer Brake Driver Control Module

What does this mean?

What are the Possible Causes of the DTC U2504 Cadillac?

Reprogram Trailer Brake Driver Control Module
Faulty Trailer Brake Driver Control Module
Trailer Brake Driver Control Module harness is open or shorted
Trailer Brake Driver Control Module circuit poor electrical connection

How to Fix the DTC U2504 Cadillac?

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 U2504 Cadillac 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 U2504 Cadillac Code

1. What are the common symptoms of OBDII code U2504 in a Cadillac related to the Trailer Brake Driver Control Module?

The common symptoms include malfunctioning trailer brake control, erratic trailer brake operation, and potential warning lights on the dashboard.

2. What are the possible causes of the U2504 code in a Cadillac?

The code U2504 typically indicates that there is invalid data being received from the Trailer Brake Driver Control Module. Possible causes include wiring issues, faulty module, or communication errors.

3. How can I diagnose the U2504 code in my Cadillac?

Diagnosing the U2504 code involves checking the wiring connections to the Trailer Brake Driver Control Module, inspecting for any visible damage, and using a diagnostic scanner to read the code and determine the exact issue.

4. Can I still drive my Cadillac with the U2504 code present?

It is not recommended to drive your Cadillac with the U2504 code present, as it may affect the functionality of the trailer brake system and potentially compromise safety while towing.

5. How can I repair the U2504 code in my Cadillac?

Repairing the U2504 code may involve repairing or replacing damaged wiring, resetting the module, updating software if available, or replacing the Trailer Brake Driver Control Module if necessary.

6. Should I attempt to clear the U2504 code in my Cadillac on my own?

Clearing the U2504 code on your own may temporarily remove the warning light, but it is crucial to address the underlying issue causing the code to prevent future problems with the trailer brake system.

7. Can a DIY enthusiast fix the U2504 code in a Cadillac?

While some simple troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing the U2504 code may require specialized tools and expertise, so consulting a professional mechanic is recommended.

8. How much does it typically cost to repair the U2504 code in a Cadillac?

The cost of repairing the U2504 code can vary depending on the exact cause of the issue and the necessary repairs. It is advisable to obtain a diagnostic evaluation from a mechanic to determine the cost accurately.

9. Is the U2504 code specific to Cadillac vehicles only?

The U2504 code related to Invalid Data Received From Trailer Brake Driver Control Module is specific to Cadillac vehicles and may have different meanings or implications in other car makes and models.

10. Can regular maintenance help prevent the U2504 code in a Cadillac?

While regular maintenance can help prevent some electrical issues, the U2504 code is typically related to specific problems with the Trailer Brake Driver Control Module and may require prompt attention if it occurs.