Engine-CodesGeneric – C1333

C1333 Code - Open Circuit In Left Rear Speed Sensor Circuit

Quick Answer

The C1333 code indicates an open circuit in the left rear speed sensor circuit of the vehicle. Common causes include Damaged or corroded wiring in the left rear speed sensor circuit, Faulty speed sensor, Loose or disconnected electrical connections. 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
C1333 indicates Open Circuit In Left Rear Speed Sensor Circuit.
Common causes
Common causes include Damaged or corroded wiring in the left rear speed sensor circuit, Faulty speed sensor, Loose or disconnected electrical connections.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code C1333 Description

The C1333 code indicates an open circuit in the left rear speed sensor circuit of the vehicle. The speed sensor is a crucial component in the vehicle's anti-lock braking system (ABS) and traction control system. The speed sensor is responsible for monitoring the speed of the wheels and providing feedback to the vehicle's computer system. This information is used to determine the speed of each wheel and ensure they are all rotating at the same speed. An open circuit in the left rear speed sensor circuit means that there is a break in the electrical connection between the sensor and the vehicle's computer, leading to a loss of communication.

OBDII Code C1333 - Open Circuit In Left Rear Speed Sensor Circuit
C1333 Code - Open Circuit In Left Rear Speed Sensor Circuit

Common Causes of C1333

  1. Damaged or corroded wiring in the left rear speed sensor circuit
  2. Faulty speed sensor
  3. Loose or disconnected electrical connections
  4. Water or debris intrusion affecting the sensor
  5. Issues with the vehicle's computer system

Symptoms of C1333

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction
  3. Erratic or incorrect speedometer readings
  4. Increased stopping distances
  5. Loss of stability and control while braking

How to Fix C1333

  1. Begin by visually inspecting the wiring and connections in the left rear speed sensor circuit for any signs of damage, corrosion, or loose connections.
  2. Test the speed sensor using a multimeter to determine if it is functioning properly or needs replacement.
  3. Replace the speed sensor if it is found to be faulty.
  4. Repair or replace any damaged wiring or connections in the circuit.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C1333

The typical repair costs for addressing an open circuit in the left rear speed sensor circuit can range from $100 to $300, depending on the extent of the damage and the cost of replacement parts. This estimate includes the cost of a new speed sensor, any necessary wiring repairs, and labor charges. However, it's important to note that prices can vary based on factors such as the vehicle make and model, the location of the repair shop, and the hourly labor rates. It's recommended to consult with a professional mechanic to get an accurate cost estimate for this repair.

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Code C1333 Information for Specific Makes

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 C1333 Code

1. What does the OBDII code C1333 mean?

C1333 indicates an open circuit in the left rear speed sensor circuit, which affects the vehicle's ability to monitor wheel speed accurately.

2. What are the symptoms of code C1333?

Common symptoms include an illuminated ABS light, reduced ABS functionality, and possible issues with traction control or stability systems.

3. What causes the C1333 code?

The most common causes are a damaged left rear speed sensor, broken or corroded wiring, a loose connector, or a faulty ABS module.

4. Can I still drive my vehicle with code C1333?

While the vehicle may still be drivable, the ABS and traction control systems may not function properly, increasing the risk of skidding or loss of control in slippery conditions.

5. How do you diagnose the C1333 code?

Diagnosis typically involves inspecting the left rear speed sensor, checking the wiring and connectors for damage, and using a multimeter to test for continuity in the circuit.

6. How do you fix the C1333 code?

Repairs may include replacing the left rear speed sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the ABS module if necessary.

7. How much does it cost to fix code C1333?

The repair cost varies depending on the issue but typically ranges from $100 to $300 for sensor replacement or wiring repairs, plus labor.

8. Can a faulty ABS module cause code C1333?

Yes, though rare, a malfunctioning ABS module can cause the code if it fails to communicate properly with the speed sensor.

9. How can I prevent code C1333 from occurring?

Regular maintenance, including inspecting wheel speed sensors, cleaning connectors, and avoiding water intrusion into electrical components, can help prevent this issue.

10. Will clearing the code fix the problem?

Simply clearing the code won’t resolve the underlying issue. Proper diagnosis and repair are necessary to prevent the code from returning.

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