Engine-CodesGeneric – U1042

U1042 Code - Invalid Or Missing Data For Traction Control

Quick Answer

The U1042 code indicates that the vehicle's traction control system has detected invalid or missing data. Common causes include Faulty wheel speed sensors, Damaged wiring or connectors in the traction control system, Malfunctioning ABS module. 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
U1042 indicates Invalid Or Missing Data For Traction Control.
Common causes
Common causes include Faulty wheel speed sensors, Damaged wiring or connectors in the traction control system, Malfunctioning ABS module.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code U1042 Description

The U1042 code indicates that the vehicle's traction control system has detected invalid or missing data. Traction control is a crucial safety feature that helps prevent wheel slip and loss of control in slippery conditions. When this code is triggered, it can lead to the traction control system not functioning properly, potentially compromising the vehicle's stability and handling.

OBDII Code U1042 - Invalid Or Missing Data For Traction Control
U1042 Code - Invalid Or Missing Data For Traction Control

Common Causes of U1042

  1. Faulty wheel speed sensors
  2. Damaged wiring or connectors in the traction control system
  3. Malfunctioning ABS module
  4. Corrosion or debris affecting sensor readings
  5. Issues with the powertrain control module (PCM)

Symptoms of U1042

  1. Illuminated traction control warning light on the dashboard
  2. Decreased traction control effectiveness, especially in slippery conditions
  3. Loss of stability and control while driving
  4. Reduced acceleration and power delivery
  5. Rough or jerky shifting from the transmission

How to Fix U1042

  1. Diagnose the specific cause of the U1042 code using a scan tool to identify the faulty component.
  2. Inspect and test the wheel speed sensors and their wiring for any damage or corrosion.
  3. Check the ABS module and PCM for any faults or malfunctions.
  4. Replace any faulty components, such as sensors, wiring, or control modules.
  5. Clear the code and test drive the vehicle to ensure the traction control system is functioning properly.

Cost to Fix U1042

The cost of repairing the U1042 code can vary depending on the specific cause of the issue and the parts needed for the repair. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple shops to find the best price.

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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.

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