AutoCodes – Generic – U250D

U250D 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 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 1,244

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

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?

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 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.

Need more information about the U250D code?

Need more information on how to fix the U250D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U250D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U250D Buick — Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2
U250D Cadillac — Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2
U250D Chevrolet — Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2
U250D GMC — Invalid Data Received From Transmission Control Module On Chassis Control Module LIN Bus 2

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 Code

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

- Common symptoms of code U250D include issues with shifting gears, transmission slipping, erratic engine performance, and illumination of the transmission warning light.

2. What does the OBDII code U250D indicate?

- OBDII code U250D indicates that the chassis control module has detected invalid data from the transmission control module on LIN Bus 2.

3. What are the possible causes of code U250D?

- Possible causes of code U250D include faulty wiring or connections between the transmission control module and chassis control module, a defective transmission control module, or a malfunctioning chassis control module.

4. How can I diagnose OBDII code U250D?

- Diagnosing code U250D typically involves inspecting the wiring and connections between the transmission control module and chassis control module, checking for any loose or damaged wires, and using a diagnostic scanner to read and clear the code.

5. Can I continue driving with OBDII code U250D present?

- It is not recommended to continue driving with OBDII code U250D present, as it can lead to further transmission issues and potential safety concerns. It is advisable to address the underlying problem promptly.

6. How can I repair OBDII code U250D?

- Repairing code U250D may involve repairing or replacing any damaged wiring or connections between the transmission control module and chassis control module, testing and replacing faulty modules, and clearing the code with a diagnostic tool.

7. Is OBDII code U250D a serious issue?

- OBDII code U250D should be addressed promptly as it can affect the proper functioning of the transmission system, leading to potential drivability issues and safety concerns.

8. Can a DIY enthusiast fix OBDII code U250D?

- While some DIY enthusiasts may have the skills to diagnose and repair code U250D, it is recommended to consult a professional mechanic or technician for proper diagnosis and repair to ensure the issue is resolved correctly.

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

- The cost to fix OBDII code U250D can vary depending on the extent of the issue, the parts needed for repair, and labor costs. It is advisable to obtain quotes from different repair shops for an accurate estimate.

10. Will resetting the code make it go away permanently?

- Resetting the code may temporarily clear the error code, but if the underlying issue causing code U250D is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem.