AutoCodes – GMC – C0037 GMC

C0037 GMC Code - Left 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 Left Front Wheel Speed Sensor, Left Front Wheel Speed Sensor harness is open or shorted, Left 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
C0037 GMC indicates Left Front Wheel Speed Sensor Circuit Low.
Common causes
Common causes include Faulty Left Front Wheel Speed Sensor, Left Front Wheel Speed Sensor harness is open or shorted, Left 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 2,117
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 C0037 GMC 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 C0037 GMC - Left Front Wheel Speed Sensor Circuit Low - AutoCodes.com
C0037 GMC Code - Left Front Wheel Speed Sensor Circuit Low

What are the Possible Causes of the DTC C0037 GMC?

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

How to Fix the DTC C0037 GMC?

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 C0037 GMC 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 C0037 GMC code?

Need more information on how to fix the C0037 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0037 GMC 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 C0037 GMC Code

1. What are the common symptoms of OBDII code C0037 GMC (Left Front Wheel Speed Sensor Circuit Low)?

The common symptoms include the ABS warning light being illuminated on the dashboard, potential traction control issues, and possible erratic braking behavior.

2. What are the possible causes of OBDII code C0037 GMC?

Potential causes of this code include a faulty left front wheel speed sensor, damaged wiring or connectors in the circuit, or issues with the ABS module.

3. How can I diagnose the cause of OBDII code C0037 GMC?

Diagnosing this code typically involves using a scan tool to read the specific wheel speed sensor data, inspecting the sensor and its wiring for damage, and testing the sensor's resistance.

4. Can I still drive my vehicle with OBDII code C0037 GMC present?

It is not recommended to drive your vehicle with this code present, as it can affect the proper functioning of the ABS system and potentially compromise your safety on the road.

5. How can I repair OBDII code C0037 GMC?

Repairing this code often involves replacing the left front wheel speed sensor, repairing any damaged wiring or connectors, and clearing the code with a scan tool.

6. Is it safe to continue driving if the ABS warning light is on due to OBDII code C0037 GMC?

It is not safe to continue driving with the ABS warning light illuminated, as it indicates a potential issue with the ABS system that could compromise your vehicle's braking performance.

7. Can weather conditions affect the triggering of OBDII code C0037 GMC?

Extreme weather conditions like heavy rain or snow can potentially affect the wheel speed sensor's performance and trigger this code.

8. How much does it typically cost to repair OBDII code C0037 GMC at a repair shop?

The cost of repairing this code can vary depending on the specific cause, but it may range from $100 to $300 for parts and labor.

9. Will OBDII code C0037 GMC cause my vehicle to fail a smog or emissions test?

While this code is related to the ABS system and not emissions, it is still important to address and repair it to ensure your vehicle is in proper working condition.

10. How long does it take to repair OBDII code C0037 GMC?

The repair time for this code can vary based on the cause and extent of the issue, but it typically takes a few hours to diagnose and fix the problem.

Discuss the causes and fixes for C0037 GMC OBDII Code

Code C0037 GMC 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