AutoCodes – Generic – C1333

C1333 Code - Open Circuit In Left Rear Speed Sensor Circuit

Quick Answer

Each speed sensor detects wheel speed and sends the appropriate signals to the Skid Control ECU. Common causes include Faulty Left Rear Speed Sensor, Left Rear Speed Sensor harness is open or shorted, Left Rear 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: C1333 indicates Open Circuit In Left Rear Speed Sensor Circuit.
Common causes: Common causes include Faulty Left Rear Speed Sensor, Left Rear Speed Sensor harness is open or shorted, Left Rear 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 13,723

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 Sep 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1333 Description

Each speed sensor detects wheel speed and sends the appropriate signals to the Skid Control ECU. These signals are used by the ABS control system. The speed sensor rotors have rows of alternating N and S magnetic poles. Hall IC type speed sensors use the frequency of output pulses to detect the vehicle speed. Because the sensor outputs digital pulses, it can detect the vehicle speed even when the vehicle is nearly stationary.

OBDII Code C1333 - Open Circuit In Left Rear Speed Sensor Circuit - AutoCodes.com — C1333 Code - Open Circuit In Left Rear Speed Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C1333?

Faulty Left Rear Speed Sensor
Left Rear Speed Sensor harness is open or shorted
Left Rear Speed Sensor circuit poor electrical connection
Faulty Skid Control ECU (Brake Actuator Assembly)

How to Fix the DTC C1333?

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 C1333 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 C1333 code?

Need more information on how to fix the C1333 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1333 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1333 Hyundai — Sensor 2 Fault
C1333 KIA — Sensor 2 Fault
C1333 Lexus — Open Circuit In Left Rear Speed Sensor Circuit
C1333 Scion — Open Circuit In Left Rear Speed Sensor Circuit
C1333 Toyota — Open Circuit In Left Rear Speed Sensor Circuit

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 wonâ€™t resolve the underlying issue. Proper diagnosis and repair are necessary to prevent the code from returning.