AutoCodes – Chevrolet – C0242 2018 Chevrolet Silverado

C0242 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 573

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Engine Control Module Indicated Traction Control Malfunction - AutoCodes.com — C0242 2018 Chevrolet Silverado Code - Engine Control Module Indicated Traction Control Malfunction

What does this mean?

What are the Possible Causes of the DTC C0242 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

What does the OBDII code C0242 mean for a 2018 Chevrolet Silverado?

Code C0242 indicates that the Engine Control Module (ECM) has detected a malfunction in the traction control system.

What are the symptoms of code C0242 in a 2018 Chevrolet Silverado?

Common symptoms include the traction control warning light turning on, reduced traction control functionality, and potentially reduced engine power.

What causes the C0242 code to appear in a 2018 Chevrolet Silverado?

This code can be triggered by issues such as a faulty ECM, malfunctioning Traction Control Module, wiring or connection problems, or a communication error between modules.

Can I drive my 2018 Chevrolet Silverado with the C0242 code?

While you may be able to drive the vehicle, the traction control system may not function properly, which could compromise safety in slippery or low-traction conditions.

How do I diagnose the C0242 code in a 2018 Chevrolet Silverado?

Diagnosing this code typically involves using a diagnostic scanner to check for related codes, inspecting the wiring and connectors, and testing the ECM and Traction Control Module for proper operation.

What tools are needed to troubleshoot the C0242 code?

You will need an OBDII scanner, a multimeter for electrical testing, and potentially a service manual for wiring diagrams and troubleshooting steps.

How is the C0242 code fixed in a 2018 Chevrolet Silverado?

Repairs may include replacing a faulty ECM or Traction Control Module, repairing damaged wiring or connectors, or addressing any communication issues between modules.

Can a weak battery cause the C0242 code?

Yes, low voltage or a weak battery can disrupt module communication and potentially trigger this code.

Does the C0242 code require reprogramming the ECM?

If the ECM is found to be defective and replaced, it will likely need to be reprogrammed to match the vehicle's specifications.

How much does it cost to fix code C0242 on a 2018 Chevrolet Silverado?

Repair costs can vary widely depending on the issue, but they typically range from $100 for simple wiring repairs to over $1,000 if the ECM or Traction Control Module needs replacement.