AutoCodes – Generic – C0035:0F

C0035:0F Code - Left Front Wheel Speed Sensor Circuit Signal Erratic

Quick Answer

The wheel speeds are detected by active Wheel Speed Sensors (WSS) and encoder rings. 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
C0035:0F indicates Left Front Wheel Speed Sensor Circuit Signal Erratic.
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 931
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 19, 2023
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Code C0035:0F Description

The wheel speeds are detected by active Wheel Speed Sensors (WSS) and encoder rings. The encoder ring consists of permanent magnets. Each Wheel Speed Senso receives ignition voltage from the Electronic Brake Control Module (EBCM) and provides an alternating current square wave signal to the electronic brake control module. As the wheel spins, the electronic brake control module uses the frequency of the square wave signal to calculate the wheel speed. The Diagnostic Trouble Code (DTC) will be set when there is debris on the wheel speed sensor or the tone ring, a missing tooth or teeth on the wheel speed sensor tone ring, or electrical magnetic interference with the wheel speed sensor harness.
OBDII Code C0035:0F - Left Front Wheel Speed Sensor Circuit Signal Erratic - AutoCodes.com
C0035:0F Code - Left Front Wheel Speed Sensor Circuit Signal Erratic

What are the Possible Causes of the DTC C0035:0F?

  • 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
  • Faulty Electronic Brake Control Module (EBCM)

How to Fix the DTC C0035:0F?

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 C0035:0F 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 C0035:0F code?

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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 C0035:0F Code

1. What are common symptoms of OBDII code C0035:0F (Left Front Wheel Speed Sensor Circuit Signal Erratic)?

Symptoms may include the ABS warning light illuminating on the dashboard, traction control issues, and potentially reduced braking performance.

2. What causes the OBDII code C0035:0F to trigger?

This code is typically triggered by a malfunction in the left front wheel speed sensor circuit, which can be caused by damaged wiring, a faulty sensor, or corrosion in the connections.

3. How can I diagnose the cause of OBDII code C0035:0F?

Diagnosis involves checking the wiring and connections leading to the left front wheel speed sensor, inspecting the sensor itself for damage, and using a scan tool to monitor the sensor's signal output.

4. Can I still drive my vehicle with OBDII code C0035:0F present?

It is not recommended to drive with this code present, as it can affect the proper functioning of the ABS and traction control systems, potentially compromising vehicle safety.

5. How can I repair OBDII code C0035:0F (Left Front Wheel Speed Sensor Circuit Signal Erratic)?

Repair options may include repairing or replacing damaged wiring, cleaning or replacing the left front wheel speed sensor, and ensuring all connections are secure and free of corrosion.

6. Is it possible for a DIY enthusiast to fix OBDII code C0035:0F?

Depending on your skill level and access to tools, DIY repair of this code may be possible, especially for tasks like checking and repairing wiring connections. However, more complex repairs like sensor replacement may require professional assistance.

7. Can weather conditions affect the triggering of OBDII code C0035:0F?

Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate issues related to the left front wheel speed sensor circuit, leading to the erratic signal and triggering of the code.

8. How important is it to address OBDII code C0035:0F promptly?

It is crucial to address this code promptly, as it can impact the functionality of important safety systems like ABS and traction control, potentially compromising vehicle stability and control.

9. Will resetting the OBDII code C0035:0F make it go away permanently?

Simply resetting the code will not solve the underlying issue causing it to trigger. It is important to diagnose and repair the root cause to prevent the code from reoccurring.

10. What are the potential risks of ignoring OBDII code C0035:0F?

Ignoring this code can lead to safety risks due to compromised ABS and traction control systems, as well as potential damage to other components in the vehicle's braking system.

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