AutoCodes – Generic – C0035:04

C0035:04 Code - Left Front Wheel Speed Sensor Circuit Open

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: C0035:04 indicates Left Front Wheel Speed Sensor Circuit Open.
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.

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Code Popularity 354

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 19, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0035:04 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 an open or high resistance is detected on the wheel speed sensor signal circuit.

OBDII Code C0035:04 - Left Front Wheel Speed Sensor Circuit Open - AutoCodes.com — C0035:04 Code - Left Front Wheel Speed Sensor Circuit Open

What does this mean?

What are the Possible Causes of the DTC C0035:04?

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 C0035:04?

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 C0035:04 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.

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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 C0035:04 Code

1. What are the common symptoms of OBDII code C0035:04 (Left Front Wheel Speed Sensor Circuit Open)?

- Common symptoms include ABS warning light illuminated on the dashboard, traction control system malfunction, and potential loss of ABS functionality.

2. What could be the possible causes of OBDII code C0035:04?

- The code C0035:04 typically indicates an open circuit in the left front wheel speed sensor, which could be caused by a damaged sensor, corroded connectors, or wiring issues.

3. How can I diagnose the issue related to OBDII code C0035:04?

- Diagnosis involves visually inspecting the left front wheel speed sensor and its wiring for any visible damage, checking the connectors for corrosion, and using a multimeter to test the sensor's resistance.

4. Can I still drive my vehicle with OBDII code C0035:04 present?

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

5. How can I repair OBDII code C0035:04 (Left Front Wheel Speed Sensor Circuit Open)?

- Repair involves replacing the left front wheel speed sensor if it is faulty, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

6. Are there any DIY tips for fixing OBDII code C0035:04?

- DIY enthusiasts with some experience in automotive repair can attempt to replace the left front wheel speed sensor themselves, following manufacturer guidelines and using proper tools.

7. Will OBDII code C0035:04 cause any other issues in my vehicle?

- In addition to affecting the ABS system, if left unresolved, this code can lead to further damage to other components of the vehicle's braking system.

8. How long does it typically take to repair OBDII code C0035:04?

- The repair time can vary depending on the extent of the damage and the accessibility of the sensor, but it usually takes around 1-2 hours for a professional mechanic to fix the issue.

9. Can extreme weather conditions contribute to triggering OBDII code C0035:04?

- Yes, extreme weather conditions like heavy rain or snow can lead to water ingress into the sensor connectors, causing corrosion and potentially triggering the code.

10. Is it necessary to reset the ABS system after repairing OBDII code C0035:04?

- Yes, it is essential to reset the ABS system using an OBDII scanner after repairing the issue to clear the code and ensure proper functionality of the system.