AutoCodes – Buick – C0042 Buick

C0042 Buick Code - Right Front Wheel Speed Sensor Circuit Low

Quick Answer

The Wheel Speed Sensor (WSS) receives ignition voltage from the Electronic Brake Control Module (EBCM) and provides a DC square wave signal back to the module. Common causes include Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted, Right Front Wheel Speed Sensor 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
C0042 Buick indicates Right Front Wheel Speed Sensor Circuit Low.
Common causes
Common causes include Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted, Right Front Wheel Speed Sensor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 507
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 24, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code C0042 Buick Description

The Wheel Speed Sensor (WSS) receives ignition voltage from the Electronic Brake Control Module (EBCM) and provides a DC square wave signal back to the module. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed.
OBDII Code C0042 Buick - Right Front Wheel Speed Sensor Circuit Low - AutoCodes.com
C0042 Buick Code - Right Front Wheel Speed Sensor Circuit Low

What are the Possible Causes of the DTC C0042 Buick?

  • Faulty Right Front Wheel Speed Sensor
  • Right Front Wheel Speed Sensor harness is open or shorted
  • Right Front Wheel Speed Sensor circuit poor electrical connection

How to Fix the DTC C0042 Buick?

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 C0042 Buick 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 C0042 Buick code?

Need more information on how to fix the C0042 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0042 Buick 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 C0042 Buick Code

1. What are common symptoms of OBDII code C0042 in a Buick related to the right front wheel speed sensor circuit low?

The common symptoms include the ABS warning light illuminated on the dashboard, traction control system malfunctions, and potential loss of stability control.

2. What are the possible causes of OBDII code C0042 in a Buick indicating a low right front wheel speed sensor circuit?

Potential causes include a faulty right front wheel speed sensor, damaged wiring or connectors in the circuit, sensor alignment issues, or a malfunctioning ABS module.

3. How can I diagnose the OBDII code C0042 in my Buick related to the right front wheel speed sensor circuit low?

Diagnosis involves visually inspecting the sensor and its connections, checking for damaged wiring, using a multimeter to test the sensor's resistance, and scanning the ABS system for further diagnostic trouble codes.

4. Can I still drive my Buick with the OBDII code C0042 indicating a low right front wheel speed sensor circuit?

It is not recommended to drive the vehicle with this code present, as it can affect the vehicle's stability control and ABS functionality, potentially compromising safety.

5. What are some repair tips for addressing OBDII code C0042 in a Buick with a low right front wheel speed sensor circuit?

Repair tips include checking and cleaning the sensor connections, replacing the right front wheel speed sensor if faulty, inspecting for damaged wiring, and resetting the trouble code after repairs are made.

6. How much does it typically cost to repair OBDII code C0042 in a Buick related to the right front wheel speed sensor circuit low?

Repair costs can vary depending on the exact cause of the issue, but expenses may include the cost of a new wheel speed sensor, labor charges for diagnosis and repairs, and potential fees for resetting the trouble code.

7. Can a DIY enthusiast address OBDII code C0042 in a Buick indicating a low right front wheel speed sensor circuit?

DIY enthusiasts with automotive repair experience may be able to address this code by following repair guides, using diagnostic tools, and replacing the right front wheel speed sensor themselves. However, professional assistance is recommended for accurate diagnosis and repair.

8. How urgent is it to fix OBDII code C0042 in a Buick related to the right front wheel speed sensor circuit low?

It is recommended to address this code promptly to ensure the proper functioning of the ABS and stability control systems in the vehicle, as driving with this issue unresolved can impact safety and performance.

9. Can extreme weather conditions impact the occurrence of OBDII code C0042 in a Buick signaling a low right front wheel speed sensor circuit?

Extreme weather conditions, such as moisture or temperature fluctuations, can potentially affect the performance of the wheel speed sensor and contribute to the occurrence of this trouble code.

10. Will resetting the OBDII code C0042 in a Buick with a low right front wheel speed sensor circuit temporarily resolve the issue?

Resetting the trouble code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the problem.

Discuss the causes and fixes for C0042 Buick OBDII Code

Code C0042 Buick comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play