AutoCodes – Generic – C1466

C1466 Code - Rear Speed Sensor Right

Quick Answer

Each speed sensor detects wheel speed and sends the appropriate signals to the Skid Control ECU. Common causes include Faulty Rear Speed Sensor Right, Rear Speed Sensor Right harness is open or shorted, Rear Speed Sensor Right 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: C1466 indicates Rear Speed Sensor Right.
Common causes: Common causes include Faulty Rear Speed Sensor Right, Rear Speed Sensor Right harness is open or shorted, Rear Speed Sensor Right 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 15,495

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 Oct 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1466 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 C1466 - Rear Speed Sensor Right - AutoCodes.com — C1466 Code - Rear Speed Sensor Right

What does this mean?

What are the Possible Causes of the DTC C1466?

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

How to Fix the DTC C1466?

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 C1466 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 C1466 code?

Need more information on how to fix the C1466 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1466 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1466 Lexus — Rear Speed Sensor Right
C1466 Scion — Rear Speed Sensor Right
C1466 Toyota — Rear Speed Sensor Right

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.