AutoCodes – GMC – C0249 GMC

C0249 GMC Code - Left Normal Force Error

Quick Answer

The Electronic Brake Control Module (EBCM) receives invalid information from other modules through the General Motor Local Area Network (GMLAN) serial data bus. Common causes include This is an information code only, check other codes. 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: C0249 GMC indicates Left Normal Force Error.
Common causes: Common causes include This is an information code only, check other codes.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 892

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 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C0249 GMC Description

The Electronic Brake Control Module (EBCM) receives invalid information from other modules through the General Motor Local Area Network (GMLAN) serial data bus. The EBCM will set DTC based on this information. This Diagnostic Trouble Code (DTC) is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS.

OBDII Code C0249 GMC - Left Normal Force Error - AutoCodes.com — C0249 GMC Code - Left Normal Force Error

What does this mean?

What are the Possible Causes of the DTC C0249 GMC?

This is an information code only, check other codes.

How to Fix the DTC C0249 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 C0249 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.

Need more information about the C0249 GMC code?

Need more information on how to fix the C0249 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0249 GMC code diagnosed by a professional: Find a repair shop in your area

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 C0249 GMC Code

1. What are the common symptoms of OBDII code C0249 GMC (Left Normal Force Error)?

The common symptoms of OBDII code C0249 GMC, also known as Left Normal Force Error, include issues with the vehicle's stability control system, traction control system, or anti-lock braking system.

2. What can cause the OBDII code C0249 GMC to trigger?

The OBDII code C0249 GMC (Left Normal Force Error) can be triggered by problems with the left front wheel speed sensor, issues with the stability control module, or wiring issues in the system.

3. How serious is the OBDII code C0249 GMC (Left Normal Force Error)?

The severity of the OBDII code C0249 GMC (Left Normal Force Error) can vary. While it may not always cause immediate safety concerns, it is important to address the underlying issue promptly to ensure proper operation of the vehicle's safety systems.

4. How can I diagnose the OBDII code C0249 GMC (Left Normal Force Error)?

Diagnosing the OBDII code C0249 GMC involves using a diagnostic scanner to retrieve the code, checking the left front wheel speed sensor for proper operation, inspecting the stability control module, and examining the wiring for any damage or loose connections.

5. What are some repair tips for fixing the OBDII code C0249 GMC?

Repair tips for addressing the OBDII code C0249 GMC (Left Normal Force Error) may include cleaning and inspecting the wheel speed sensor, checking and repairing any damaged wiring, resetting the fault code, or replacing the stability control module if necessary.

6. Can I drive my vehicle with the OBDII code C0249 GMC (Left Normal Force Error) present?

It is not recommended to drive your vehicle with the OBDII code C0249 GMC (Left Normal Force Error) present, as it may affect the proper functioning of safety systems like stability control and traction control.

7. How much does it cost to repair the OBDII code C0249 GMC?

The cost of repairing the OBDII code C0249 GMC (Left Normal Force Error) can vary depending on the specific issue causing the code, the labor rates in your area, and whether any parts need to be replaced.

8. Can I reset the OBDII code C0249 GMC (Left Normal Force Error) without fixing the underlying issue?

While you can clear the code temporarily, it will likely return if the underlying issue causing the code is not addressed. It's important to diagnose and repair the root cause of the problem to prevent further issues.

9. How can I prevent the OBDII code C0249 GMC (Left Normal Force Error) from coming back?

To prevent the OBDII code C0249 GMC from recurring, regular maintenance and inspections of the vehicle's stability control system, wheel speed sensors, and wiring are recommended. Addressing any issues promptly can help prevent the code from reappearing.

10. Can a DIY enthusiast fix the OBDII code C0249 GMC (Left Normal Force Error)?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address the OBDII code C0249 GMC (Left Normal Force Error) by following repair guides, troubleshooting steps, and using diagnostic equipment. However, complex issues may require professional assistance.