AutoCodes – Cadillac – U0250 Cadillac

U0250 Cadillac Code - Lost Communication With Impact Classification System Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Impact Classification System Module, Impact Classification System Module harness is open or shorted, Impact Classification System 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: U0250 Cadillac indicates Lost Communication With Impact Classification System Module.
Common causes: Common causes include Faulty Impact Classification System Module, Impact Classification System Module harness is open or shorted, Impact Classification System 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 508

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 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0250 Cadillac Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Impact Classification System Module has not been received.

OBDII Code U0250 Cadillac - Lost Communication With Impact Classification System Module - AutoCodes.com — U0250 Cadillac Code - Lost Communication With Impact Classification System Module

What does this mean?

What are the Possible Causes of the DTC U0250 Cadillac?

Faulty Impact Classification System Module
Impact Classification System Module harness is open or shorted
Impact Classification System Module circuit poor electrical connection

How to Fix the DTC U0250 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 U0250 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 U0250 Cadillac Code

1. What are the common symptoms of the U0250 OBDII code in a Cadillac?

The common symptoms of the U0250 code include the airbag warning light illuminating on the dashboard, loss of communication with the Impact Classification System Module, and potential issues with the airbag system.

2. What can cause the U0250 code to appear in a Cadillac?

The U0250 code typically appears in a Cadillac when there is a communication failure between the vehicle's onboard computer and the Impact Classification System Module, which is responsible for determining airbag deployment.

3. How can I diagnose the U0250 code in my Cadillac?

Diagnosing the U0250 code in a Cadillac involves using an OBDII scanner to retrieve the code, checking the Impact Classification System Module for any visible damage or loose connections, and testing the wiring harness for continuity.

4. Can I drive my Cadillac with the U0250 code present?

It is not recommended to drive your Cadillac with the U0250 code present, as it indicates a potential issue with the airbag system, which is crucial for your safety in the event of a collision.

5. How can I repair the U0250 code in my Cadillac?

To repair the U0250 code in a Cadillac, you may need to replace the Impact Classification System Module, repair any damaged wiring or connectors, and clear the code with an OBDII scanner.

6. Are there any DIY tips for fixing the U0250 code in a Cadillac?

While diagnosing and repairing the U0250 code may require specialized tools and knowledge, you can start by checking the fuses related to the airbag system, ensuring all connections are secure, and inspecting for any visible damage.

7. Will the U0250 code reset itself after repairs are made?

After repairs are made to address the U0250 code in a Cadillac, you will need to use an OBDII scanner to clear the code from the vehicle's computer. Once cleared, the code should not reappear if the issue has been successfully resolved.

8. How much does it cost to fix the U0250 code in a Cadillac?

The cost of fixing the U0250 code in a Cadillac can vary depending on the underlying cause of the issue, the cost of parts needed for repair, and labor charges from a mechanic. It is recommended to obtain quotes from different repair shops for an accurate estimate.

9. Can the U0250 code be a false alarm in a Cadillac?

While it is possible for the U0250 code to be triggered by a temporary communication glitch, it is important to diagnose and address the issue promptly to ensure the proper functioning of the airbag system in your Cadillac.

10. Is it safe to ignore the U0250 code in a Cadillac?

Ignoring the U0250 code in a Cadillac is not recommended, as it indicates a potential problem with the airbag system that could compromise your safety in the event of a collision. It is best to address the issue promptly to ensure the proper functioning of the airbags.