AutoCodes – GMC – U250D GMC

U250D GMC Code - Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2

Quick Answer

Some devices are constantly receiving information from other devices through serial data communication network. Common causes include Reprogram Transmission Control Module (TCM), Faulty Transmission Control Module, Transmission 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: U250D GMC indicates Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2.
Common causes: Common causes include Reprogram Transmission Control Module (TCM), Faulty Transmission Control Module, Transmission 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 735

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 U250D GMC 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 Transmission Control Module (TCM) is not configured properly.

OBDII Code U250D GMC - Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2 - AutoCodes.com — U250D GMC Code - Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2

What does this mean?

What are the Possible Causes of the DTC U250D GMC?

Reprogram Transmission Control Module (TCM)
Faulty Transmission Control Module
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC U250D GMC?

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 U250D GMC 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 U250D GMC Code

1. What are common symptoms of the OBDII code U250D GMC?

The common symptoms of the U250D GMC code include transmission shifting issues, dashboard warning lights related to the transmission, and possible vehicle stalling or loss of power.

2. What does the OBDII code U250D GMC indicate?

The U250D GMC code indicates that the Chassis Control Module LIN Bus 2 is receiving invalid data from the Transmission Control Module, pointing to a communication error between these modules.

3. What are possible causes of the U250D GMC code?

Possible causes of the U250D GMC code include damaged wiring or connectors in the LIN Bus network, faulty Transmission Control Module, issues with the Chassis Control Module, or software glitches.

4. How can I diagnose the U250D GMC code?

Diagnosing the U250D GMC code typically involves using a diagnostic scanner to retrieve the code and checking the communication between the Transmission Control Module and the Chassis Control Module. Inspecting the wiring and connectors for damage is also recommended.

5. Can I still drive my vehicle with the U250D GMC code?

It is not recommended to drive your vehicle with the U250D GMC code present, as it can lead to potential transmission issues and safety concerns. It is best to address the problem promptly.

6. How can I repair the U250D GMC code?

Repairing the U250D GMC code may involve repairing or replacing damaged wiring or connectors in the LIN Bus network, checking and potentially replacing the Transmission Control Module or the Chassis Control Module, and ensuring all software is up to date.

7. Is the U250D GMC code a serious issue?

The U250D GMC code should be taken seriously as it can affect the communication between critical control modules in the vehicle, potentially leading to transmission malfunctions or other safety hazards.

8. Can a DIY enthusiast fix the U250D GMC code?

Depending on your skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the U250D GMC code. However, complex electrical issues may require professional assistance.

9. How much does it cost to fix the U250D GMC code?

The cost of fixing the U250D GMC code can vary depending on the root cause of the issue, the parts needed for repair, and whether you choose to do the repair yourself or seek professional help. It is recommended to get a few quotes from reputable mechanics.

10. How can I prevent the U250D GMC code from recurring?

To prevent the U250D GMC code from recurring, it is essential to maintain your vehicle's electrical system, perform regular inspections of wiring and connectors, and address any transmission issues promptly to avoid further damage to control modules.