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Engine-Codes – GMC – C0035 2017 GMC Sierra

C0035 2017 GMC Sierra Code - Left Front Wheel Speed Sensor Circuit

Quick Answer

The C0035 code for a 2017 GMC Sierra refers to an issue with the Left Front Wheel Speed Sensor Circuit. Common causes include Faulty wheel speed sensor, Damaged or corroded wiring connecting the sensor to the ECU, Issues with the ECU itself. 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
C0035 2017 GMC Sierra indicates Left Front Wheel Speed Sensor Circuit.
Common causes
Common causes include Faulty wheel speed sensor, Damaged or corroded wiring connecting the sensor to the ECU, Issues with the ECU itself.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code C0035 2017 GMC Sierra Description

The C0035 code for a 2017 GMC Sierra refers to an issue with the Left Front Wheel Speed Sensor Circuit. The wheel speed sensors are crucial components of the vehicle's anti-lock braking system (ABS) and traction control system. These sensors are responsible for monitoring the speed of each wheel and sending this information to the vehicle's electronic control unit (ECU). The ECU uses this data to determine if any wheel is rotating at a different speed than the others, which could indicate wheel slippage or lock-up.

OBDII Code C0035 2017 GMC Sierra - Left Front Wheel Speed Sensor Circuit
C0035 2017 GMC Sierra Code - Left Front Wheel Speed Sensor Circuit

Common Causes of C0035 2017 GMC Sierra

  1. Faulty wheel speed sensor
  2. Damaged or corroded wiring connecting the sensor to the ECU
  3. Issues with the ECU itself
  4. Magnetic interference affecting sensor readings
  5. Poor electrical connections or loose connectors

Symptoms of C0035 2017 GMC Sierra

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction
  3. Inconsistent or erratic braking performance
  4. Vehicle stability issues, especially during braking or cornering

How to Fix C0035 2017 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue using a professional automotive diagnostic tool.
  2. Inspect the left front wheel speed sensor and its wiring for any signs of damage or corrosion. Replace the sensor if necessary.
  3. Check the electrical connections and connectors for a secure fit and proper contact. Repair or replace any damaged components.
  4. Clear the error code from the ECU's memory and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the circuit malfunction.

Cost to Fix C0035 2017 GMC Sierra

The typical repair costs for a Left Front Wheel Speed Sensor Circuit issue can range from $150 to $300, including parts and labor. However, it's essential to note that prices can vary based on factors such as location, vehicle make and model, and the specific repair shop. Diagnosis time and labor rates can also impact the final cost, with most auto repair shops charging between $80 and $150 per hour. For a more accurate estimate, it's advisable to consult with local repair shops.

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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 C0035 2017 GMC Sierra Code

1. What does OBDII code C0035 mean for a 2017 GMC Sierra?

The code C0035 indicates a problem with the Left Front Wheel Speed Sensor Circuit on a 2017 GMC Sierra.

2. What are common symptoms of a Left Front Wheel Speed Sensor Circuit issue?

Common symptoms include the ABS warning light illuminating on the dashboard, traction control system malfunctions, and potential loss of stability control.

3. What are possible causes of OBDII code C0035 on a 2017 GMC Sierra?

Possible causes include a faulty wheel speed sensor, damaged wiring or connectors in the circuit, or issues with the ABS module.

4. How can I diagnose a Left Front Wheel Speed Sensor Circuit problem on my 2017 GMC Sierra?

Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the wheel speed sensor and its wiring for damage, and testing the sensor's resistance.

5. Can driving with a C0035 OBDII code on a 2017 GMC Sierra be dangerous?

Driving with this code can affect the vehicle's ABS and stability control systems, potentially compromising safety in certain driving conditions. It is recommended to address the issue promptly.

6. How can I repair a C0035 OBDII code on a 2017 GMC Sierra?

Repair options may include replacing the left front wheel speed sensor, repairing damaged wiring or connectors, or addressing any issues with the ABS module.

7. Is it possible to reset the C0035 OBDII code on a 2017 GMC Sierra without fixing the underlying issue?

While clearing the code temporarily may turn off the warning light, the issue will likely reoccur until the root cause is addressed. It is best to fix the problem to prevent further issues.

8. Can a DIY enthusiast fix a C0035 OBDII code on a 2017 GMC Sierra?

Depending on their skill level, a DIY enthusiast may be able to replace the wheel speed sensor or address basic wiring issues. However, complex diagnostics and repairs may require professional assistance.

9. How much does it typically cost to repair a Left Front Wheel Speed Sensor Circuit issue on a 2017 GMC Sierra?

The cost can vary based on the specific cause of the problem, but it may range from around $100 to $300 for parts and labor.

10. Will a Left Front Wheel Speed Sensor Circuit problem affect the overall drivability of a 2017 GMC Sierra?

While the vehicle may still be drivable with this issue, it is important to address it promptly to ensure the proper functioning of safety systems like ABS and stability control.

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