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Engine-Codes – Generic – C1466

C1466 Code - Rear Speed Sensor Right

Quick Answer

The C1466 code indicates a problem with the rear speed sensor on the right side of the vehicle. Common causes include Damaged or worn rear speed sensor, Electrical connection issues, Corrosion or debris affecting the sensor. 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
C1466 indicates Rear Speed Sensor Right.
Common causes
Common causes include Damaged or worn rear speed sensor, Electrical connection issues, Corrosion or debris affecting the sensor.
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 07, 2024
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Code C1466 Description

The C1466 code indicates a problem with the rear speed sensor on the right side of the vehicle. The speed sensor is responsible for monitoring the speed of the wheel and providing this information to the vehicle's anti-lock braking system (ABS) and traction control system. When the sensor detects any irregularities or malfunctions, it triggers the C1466 diagnostic trouble code (DTC).

OBDII Code C1466 - Rear Speed Sensor Right
C1466 Code - Rear Speed Sensor Right

Common Causes of C1466

  1. Damaged or worn rear speed sensor
  2. Electrical connection issues
  3. Corrosion or debris affecting the sensor
  4. Physical damage to the sensor or wiring
  5. Faulty ABS or traction control system

Symptoms of C1466

  1. ABS warning light illuminated on the dashboard
  2. Traction control system malfunction
  3. Inaccurate speedometer readings
  4. Braking problems, such as increased stopping distance or brake lock-up
  5. Vehicle stability issues, especially on slippery roads

How to Fix C1466

  1. Diagnose the issue by connecting a diagnostic scanner to read the fault codes and identify the specific problem with the rear speed sensor.
  2. Inspect the rear speed sensor and its wiring for any physical damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Clear the fault codes and reset the ABS/traction control system to see if the issue persists.
  4. Test drive the vehicle to ensure that the ABS and traction control systems are functioning properly and that the speed sensor is providing accurate data.
  5. If the problem persists, further troubleshooting may be required, such as testing the sensor's output signal or checking the ABS module for faults.

Cost to Fix C1466

The typical repair costs for addressing the C1466 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, replacing a rear speed sensor can cost between $100 and $300, including parts and labor. However, if additional repairs or diagnostic tests are needed, the total cost can increase. It is advisable to consult with a trusted mechanic or repair shop to get an accurate estimate based on the specific circumstances of your vehicle. Labor rates can vary between $80 and $150 per hour, so factors such as location, vehicle make and model, and engine type can influence the final cost.

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Code C1466 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 C1466 Code

1. What are common symptoms of OBDII code C1466 (Rear Speed Sensor Right)?

The common symptoms include ABS warning light illumination on the dashboard, traction control system malfunction, and erratic behavior of the vehicle stability control system.

2. What are possible causes of OBDII code C1466?

Possible causes of this code include a faulty rear speed sensor on the right side, damaged wiring or connectors related to the sensor, or issues with the ABS control module.

3. How is OBDII code C1466 diagnosed?

Diagnosing code C1466 typically involves using a diagnostic scanner to retrieve the code, inspecting the rear right speed sensor and its wiring for damage, and conducting a functional test of the sensor to determine if it is faulty.

4. Can I still drive my vehicle with OBDII code C1466?

It is not recommended to drive the vehicle with OBDII code C1466 present, as it may affect the proper functioning of the ABS and traction control systems, potentially compromising vehicle safety.

5. How can I repair OBDII code C1466 (Rear Speed Sensor Right)?

Repairing this code usually involves replacing the faulty rear right speed sensor, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scanner.

6. Can a DIY enthusiast fix OBDII code C1466 at home?

While some experienced DIY enthusiasts may be able to replace the rear right speed sensor themselves, it is recommended to consult a professional mechanic for accurate diagnosis and repair of this code.

7. Is it necessary to reset the ABS system after fixing OBDII code C1466?

Yes, it is important to reset the ABS system after fixing OBDII code C1466 to clear any stored fault codes and ensure proper functioning of the system.

8. How much does it typically cost to fix OBDII code C1466?

The cost of fixing OBDII code C1466 can vary depending on the extent of the repair needed, but it may range from $100 to $300 for parts and labor.

9. Are there any preventive measures to avoid OBDII code C1466 in the future?

Regular inspection and maintenance of the ABS system, including checking the condition of speed sensors and wiring, can help prevent issues leading to OBDII code C1466.

10. Can OBDII code C1466 be intermittent or recurring?

Yes, OBDII code C1466 can be intermittent, especially if the issue is related to a loose connection or damaged wiring. It may also recur if the root cause of the problem is not properly addressed during repair.

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