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C0035 Pontiac Code - Left Front Wheel Speed Sensor Circuit

Quick Answer

The C0035 code for a Pontiac indicates a problem with the left front wheel speed sensor circuit. Common causes include Damaged or faulty wheel speed sensor, Broken or frayed wiring in the sensor circuit, Corrosion or rust affecting the sensor or wiring. 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 Pontiac indicates Left Front Wheel Speed Sensor Circuit.
Common causes
Common causes include Damaged or faulty wheel speed sensor, Broken or frayed wiring in the sensor circuit, Corrosion or rust affecting the sensor or wiring.
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 10, 2024
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Code C0035 Pontiac Description

The C0035 code for a Pontiac indicates a problem with the left front wheel speed sensor circuit. The wheel speed sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. This sensor is responsible for measuring the speed of the wheel and sending this information to the vehicle's electronic control unit (ECU). The ECU uses this information to determine if any wheels are slipping or locking up, and it adjusts the braking force accordingly to maintain control and stability.

OBDII Code C0035 Pontiac - Left Front Wheel Speed Sensor Circuit
C0035 Pontiac Code - Left Front Wheel Speed Sensor Circuit

Common Causes of C0035 Pontiac

  1. Damaged or faulty wheel speed sensor.
  2. Broken or frayed wiring in the sensor circuit.
  3. Corrosion or rust affecting the sensor or wiring.
  4. Loose or poor connections in the sensor circuit.
  5. Issues with the ECU or ABS module.

Symptoms of C0035 Pontiac

  1. ABS warning light illuminated on the dashboard.
  2. Traction control light is on.
  3. Erratic or non-responsive braking behavior.
  4. Tires may lock up or skid during braking.
  5. Vehicle stability control system may be disabled.

How to Fix C0035 Pontiac

  1. Diagnostic: The first step is to perform a thorough diagnostic scan to confirm the C0035 code and pinpoint the exact cause of the issue.
  2. Visual inspection: Check the wheel speed sensor and wiring for any visible damage, corrosion, or loose connections.
  3. Repair or replace sensor: If the sensor is damaged or faulty, it may need to be replaced. This involves removing the wheel, caliper, and rotor to access the sensor.
  4. Repair wiring: If the issue lies with the wiring, repair or replace the damaged wires to ensure a proper connection.
  5. Clear codes and test: After the repair is completed, clear the codes from the ECU and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C0035 Pontiac

The cost of repairing a left front wheel speed sensor circuit issue can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the cost of replacing a wheel speed sensor can range from $100 to $300, including parts and labor. However, additional costs may be incurred if there are wiring issues or if other components need to be replaced. It is advisable to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances of your vehicle. Labor rates at auto repair shops typically range from $80 to $150 per hour.

What does this mean?

Tech Notes for C0035 Pontiac









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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 Pontiac Code

1. What are the common symptoms of OBDII code C0035 in a Pontiac related to the left front wheel speed sensor circuit?

The common symptoms include the ABS light coming on, traction control issues, and potential loss of stability control.

2. What are the possible causes of OBDII code C0035 in a Pontiac indicating a problem with the left front wheel speed sensor circuit?

Possible causes include a faulty wheel speed sensor, damaged wiring or connectors, a malfunctioning ABS module, or issues with the tone ring.

3. How can I diagnose the left front wheel speed sensor circuit issue causing OBDII code C0035 in my Pontiac?

You can diagnose the issue by visually inspecting the sensor and its wiring, checking for damaged components, using a multimeter to test for continuity, and scanning the ABS system for fault codes.

4. Can a dirty or contaminated wheel speed sensor cause OBDII code C0035 in a Pontiac?

Yes, dirt, debris, or metal shavings on the wheel speed sensor can disrupt its function and trigger the C0035 fault code.

5. What is the recommended repair for OBDII code C0035 in a Pontiac due to a faulty left front wheel speed sensor circuit?

The recommended repair involves replacing the left front wheel speed sensor, ensuring proper connection and routing of the wiring, and clearing the fault code from the ABS system.

6. Are there any DIY tips for troubleshooting OBDII code C0035 related to the left front wheel speed sensor circuit in a Pontiac?

DIY tips include checking the sensor for visible damage, cleaning the sensor and its mounting area, inspecting the wiring for breaks or corrosion, and resetting the ABS system after any repairs.

7. Can driving with OBDII code C0035 present in a Pontiac cause any safety concerns?

Driving with code C0035 may result in compromised ABS and traction control functionality, potentially affecting the vehicle's stability and braking performance, so it is advisable to address the issue promptly.

8. Is it possible for a loose or improperly installed left front wheel speed sensor to trigger OBDII code C0035 in a Pontiac?

Yes, a loose or incorrectly installed wheel speed sensor can lead to erratic readings and trigger the C0035 fault code in the Pontiac's ABS system.

9. Can extreme weather conditions, such as excessive heat or cold, impact the left front wheel speed sensor and cause OBDII code C0035 in a Pontiac?

Extreme weather conditions can potentially affect the performance of the wheel speed sensor or its wiring, leading to issues that trigger the C0035 fault code.

10. How crucial is it to address OBDII code C0035 indicating a problem with the left front wheel speed sensor circuit in a Pontiac promptly?

It is crucial to address the issue promptly as the ABS and traction control systems rely on accurate wheel speed data for safe operation, and driving with a faulty sensor can compromise overall vehicle safety.

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