C1442 DTC Code


In the world of automotive diagnostics, trouble codes play a crucial role in identifying and rectifying issues with vehicles. In this article, we will dive deep into the C1442 Diagnostic Trouble Code (DTC) and explore its meaning, potential causes, and possible solutions. So, let’s get started!

Understanding the C1442 DTC Code

The C1442 DTC code refers to a specific fault or malfunction in the vehicle’s electronic stability control (ESC) module. Electronic stability control, also known as electronic stability program (ESP), is a safety feature that helps to prevent skidding and loss of control during sudden maneuvers or slippery road conditions.

When the vehicle’s onboard system detects an issue within the ESC module, it triggers the C1442 DTC, indicating the presence of a problem that needs attention.

Potential Causes of the C1442 DTC Code

Several factors can contribute to the activation of the C1442 DTC code. Here are some possible causes to consider:

  1. Faulty Wheel Speed Sensor: A malfunctioning or damaged wheel speed sensor may trigger the C1442 DTC code. The sensor’s primary function is to monitor the rotational speed of each wheel, providing crucial data for the ESC system. If the sensor fails to deliver accurate readings, it can result in the activation of this trouble code.

  2. Defective ABS Pump: The ABS pump, responsible for modulating brake pressure and ensuring optimal braking performance, can develop faults over time. A faulty ABS pump can trigger the C1442 DTC code, affecting the overall functionality of the ESC system.

  3. Electrical Connectivity Issues: Loose or damaged electrical connections within the ESC module or associated components can disrupt the communication between various control units. This can lead to the activation of the C1442 DTC code.

  4. Software or Firmware Glitches: In some cases, software or firmware glitches within the ESC module itself can cause the C1442 DTC code to appear. These glitches may occur due to various factors, including software bugs, outdated firmware, or programming errors.

Diagnosing and Resolving the C1442 DTC Code

To accurately diagnose and resolve the C1442 DTC code, a comprehensive diagnostic procedure is necessary. Here are the steps typically followed by automotive technicians:

  1. Code Scanning: A professional-grade OBD-II scanner is used to retrieve the trouble codes stored in the vehicle’s onboard computer. The C1442 code helps technicians identify the specific system that requires attention.

  2. Visual Inspection: A thorough visual inspection is performed to check for any visible signs of damage or wear. This includes inspecting the wheel speed sensors, ABS pump, and associated wiring for any apparent abnormalities.

  3. Electrical Testing: The electrical connections within the ESC system are inspected and tested using specialized diagnostic tools. This step helps identify any issues related to loose connections or damaged wiring.

  4. Functional Testing: A series of functional tests are conducted to verify the performance of the ESC system, including the ABS pump, wheel speed sensors, and other related components. This step allows technicians to isolate the root cause of the C1442 DTC code.

  5. Repairs or Replacements: Once the faulty component causing the C1442 code is identified, necessary repairs or replacements are carried out. This may involve replacing a defective wheel speed sensor, repairing wiring connections, or replacing the ABS pump.

Frequently Asked Questions

1. What are the symptoms of a C1442 DTC code?

Some common symptoms associated with the C1442 DTC code include:

  • Illuminated ABS warning light on the instrument cluster
  • Unresponsive or erratic brake pedal behavior
  • Loss of traction control functionality
  • Reduced stability during sharp turns or on slippery surfaces

2. Can I drive my vehicle with a C1442 DTC code?

It is generally not advisable to drive your vehicle with the C1442 DTC code. This trouble code indicates a potential issue with the electronic stability control system, which could compromise your vehicle’s safety and handling. It is recommended to have the issue diagnosed and repaired by a qualified automotive technician.

3. How much does it cost to fix a C1442 DTC code?

The cost of repairing a C1442 DTC code can vary depending on several factors, including the root cause of the problem and the labor rates in your area. Additionally, the cost may also differ depending on whether you visit a dealership or an independent repair shop. It is best to consult with a professional technician who can provide an accurate estimate after thoroughly assessing your specific situation.


The C1442 DTC code is indicative of an issue within the electronic stability control (ESC) module of a vehicle. By understanding the potential causes and following a systematic diagnostic approach, the problem can be resolved effectively. However, it is essential to seek professional assistance to ensure the correct identification and repair of the underlying issue. Remember, addressing the C1442 DTC code promptly will help maintain the safety and performance of your vehicle on the road.

About author


Meet Sam Mitchell, your experienced and reliable guide in the complex world of car fault codes. With a robust career spanning over 15 years as a professional car mechanic, John has the skills, knowledge, and practical experience to help you navigate car fault issues with confidence.


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