AutoCodes – GMC – C0242 2016 GMC Sierra

C0242 2016 GMC Sierra Code - Engine Control Module Indicated Traction Control Malfunction

Quick Answer

The Electronic Brake Control Module (EBCM) and the Engine Control Module (ECM) simultaneously control the traction control. Common causes include Faulty Electronic Brake Control Module (EBCM), EBCM Harness is open or shorted, EBCM 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: C0242 2016 GMC Sierra indicates Engine Control Module Indicated Traction Control Malfunction.
Common causes: Common causes include Faulty Electronic Brake Control Module (EBCM), EBCM Harness is open or shorted, EBCM 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 252

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 28, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0242 2016 GMC Sierra Description

The Electronic Brake Control Module (EBCM) and the Engine Control Module (ECM) simultaneously control the traction control. The Electronic Brake Control Module sends a serial data message to the Engine Control Module requesting torque reduction. When certain Engine Control Module DTCs are set, the Engine Control Module will not be able to perform the torque reduction for traction control. A serial data message is sent to the Electronic Brake Control Module indicating that traction control is not allowed. The Diagnostic Trouble Code (DTC) engine control module detects a fault that prevents it from performing a traction control function and sends a serial data message to the electronic brake control module indicating that torque reduction is not allowed.

OBDII Code C0242 2016 GMC Sierra - Engine Control Module Indicated Traction Control Malfunction - AutoCodes.com — C0242 2016 GMC Sierra Code - Engine Control Module Indicated Traction Control Malfunction

What does this mean?

What are the Possible Causes of the DTC C0242 2016 GMC Sierra?

Faulty Electronic Brake Control Module (EBCM)
EBCM Harness is open or shorted
EBCM Circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC C0242 2016 GMC Sierra?

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 C0242 2016 GMC Sierra 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 C0242 2016 GMC Sierra code?

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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 C0242 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code C0242 in a 2016 GMC Sierra?

The common symptoms of OBDII code C0242 in a 2016 GMC Sierra include the traction control warning light illuminating on the dashboard, reduced traction control functionality, and potential stability control issues.

2. What does OBDII code C0242 in a 2016 GMC Sierra indicate?

OBDII code C0242 in a 2016 GMC Sierra indicates that the Engine Control Module (ECM) has detected a malfunction in the traction control system.

3. What are the possible causes of OBDII code C0242 in a 2016 GMC Sierra?

Possible causes of OBDII code C0242 in a 2016 GMC Sierra include a faulty traction control switch, damaged wheel speed sensors, wiring issues, or a malfunctioning ABS module.

4. How can I diagnose OBDII code C0242 in a 2016 GMC Sierra?

Diagnosing OBDII code C0242 in a 2016 GMC Sierra involves using a diagnostic scanner to retrieve the trouble codes, checking the traction control system components for visible damage, and conducting a thorough inspection of the wiring harness and connectors.

5. How can I repair OBDII code C0242 in a 2016 GMC Sierra?

Repairing OBDII code C0242 in a 2016 GMC Sierra may involve replacing a faulty traction control switch, repairing or replacing damaged wheel speed sensors, addressing wiring issues, or replacing a malfunctioning ABS module.

6. Can OBDII code C0242 in a 2016 GMC Sierra be ignored?

Ignoring OBDII code C0242 in a 2016 GMC Sierra is not recommended, as it can lead to reduced traction control functionality and potential safety issues while driving.

7. Is it safe to drive a 2016 GMC Sierra with OBDII code C0242 active?

It is generally safe to drive a 2016 GMC Sierra with OBDII code C0242 active, but it is advisable to have the issue diagnosed and repaired as soon as possible to ensure optimal traction control performance.

8. How much does it typically cost to repair OBDII code C0242 in a 2016 GMC Sierra?

The cost to repair OBDII code C0242 in a 2016 GMC Sierra can vary depending on the underlying cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

9. Can a DIY enthusiast fix OBDII code C0242 in a 2016 GMC Sierra?

A DIY enthusiast with the necessary tools and knowledge of automotive systems may be able to address simple causes of OBDII code C0242, such as replacing a faulty traction control switch or repairing wiring issues. However, complex diagnostics and repairs may require professional assistance.

10. Will resetting the OBDII system clear code C0242 in a 2016 GMC Sierra?

Resetting the OBDII system may temporarily clear code C0242 in a 2016 GMC Sierra, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent further issues.