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C1404 Toyota Code - Rear Speed Sensor Left Malfunction

Quick Answer

The C1404 diagnostic trouble code for Toyota vehicles specifically refers to a Rear Speed Sensor Left Malfunction. Common causes include Damaged or corroded rear speed sensor on the left side, Wiring issues or electrical connection problems, Sensor misalignment or improper installation. 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
C1404 Toyota indicates Rear Speed Sensor Left Malfunction.
Common causes
Common causes include Damaged or corroded rear speed sensor on the left side, Wiring issues or electrical connection problems, Sensor misalignment or improper installation.
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 08, 2024
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Code C1404 Toyota Description

The C1404 diagnostic trouble code for Toyota vehicles specifically refers to a Rear Speed Sensor Left Malfunction. This code indicates that there is an issue with the rear speed sensor located on the left side of the vehicle. The speed sensor is responsible for detecting the speed of the wheel and sending this information to the vehicle's ABS (anti-lock braking system) and traction control system. When the sensor malfunctions, it can affect the vehicle's ability to accurately measure the speed of the wheel, leading to potential safety concerns and performance issues.

OBDII Code C1404 Toyota - Rear Speed Sensor Left Malfunction
C1404 Toyota Code - Rear Speed Sensor Left Malfunction

Common Causes of C1404 Toyota

  1. Damaged or corroded rear speed sensor on the left side
  2. Wiring issues or electrical connection problems
  3. Sensor misalignment or improper installation
  4. Water or debris intrusion affecting sensor functionality
  5. Faulty ABS or traction control module

Symptoms of C1404 Toyota

  1. ABS or traction control warning lights illuminated on the dashboard
  2. Inconsistent or erratic ABS activation during braking
  3. Loss of traction or stability control on slippery surfaces
  4. Decreased braking performance or longer stopping distances
  5. Vehicle skidding or sliding during sudden stops or turns

How to Fix C1404 Toyota

  1. Diagnose the issue by using a diagnostic scanner to retrieve the specific trouble code and identify the location of the malfunction.
  2. Inspect the rear speed sensor on the left side for any visible damage, corrosion, or wiring issues. Replace the sensor if necessary.
  3. Check the wiring and electrical connections related to the speed sensor for any signs of damage or corrosion. Repair or replace as needed.
  4. Clear the trouble code from the vehicle's ECU (engine control unit) using the diagnostic scanner.
  5. Test drive the vehicle to ensure that the ABS and traction control systems are functioning properly after the repair.

Cost to Fix C1404 Toyota

The typical repair costs for addressing a C1404 Toyota code related to a Rear Speed Sensor Left Malfunction can vary depending on the specific cause of the issue and the parts/labour required for the repair. In general, the cost of replacing a rear speed sensor can range from $100 to $300, including parts and labour. However, additional diagnostic time and labour rates at auto repair shops can impact the final cost. It is advisable to check with local auto repair shops for a more accurate estimate based on the specific make and model of the vehicle. Keep in mind that rates may vary based on location, vehicle type, and the complexity of the repair.

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Information for Specific Toyota Models

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 C1404 Toyota Code

1. What are common symptoms of OBDII code C1404 Toyota Rear Speed Sensor Left Malfunction?

- Common symptoms include ABS warning light illuminated on the dashboard, traction control issues, and potentially erratic behavior in braking.

2. What can cause the OBDII code C1404 in a Toyota indicating Rear Speed Sensor Left Malfunction?

- The code can be triggered by a faulty rear speed sensor, damaged wiring or connectors, or issues with the sensor's signal reaching the ABS control module.

3. How can I diagnose the OBDII code C1404 related to the Rear Speed Sensor Left Malfunction in my Toyota?

- Diagnosing the issue involves inspecting the rear speed sensor and its wiring for any visible damage, checking the connectors for corrosion, and using a diagnostic scan tool to retrieve specific error codes.

4. Can I still drive my Toyota with the OBDII code C1404 indicating Rear Speed Sensor Left Malfunction?

- It is not recommended to drive the vehicle extensively with this issue, as it can affect the proper functioning of the ABS system, potentially compromising safety.

5. Are there any temporary fixes or reset procedures for the OBDII code C1404 in a Toyota?

- Resetting the error code may temporarily turn off the warning light, but it's crucial to address the underlying issue by inspecting and repairing the rear speed sensor and related components.

6. How much does it typically cost to repair the Rear Speed Sensor Left Malfunction causing the OBDII code C1404 in a Toyota?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the rear speed sensor, repairing damaged wiring, or addressing other related issues.

7. Can a DIY enthusiast fix the OBDII code C1404 related to Rear Speed Sensor Left Malfunction in a Toyota?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to replace the rear speed sensor or address wiring issues, but professional diagnosis and repair are recommended for complex cases.

8. What are the potential risks of ignoring the OBDII code C1404 indicating Rear Speed Sensor Left Malfunction in a Toyota?

- Ignoring the issue can lead to compromised ABS functionality, affecting braking performance and potentially increasing the risk of accidents, especially in adverse driving conditions.

9. How long does it typically take to repair the Rear Speed Sensor Left Malfunction causing the OBDII code C1404 in a Toyota?

- The repair time can vary based on the exact cause of the issue and the availability of parts, but it may range from a few hours to a full day at a repair shop.

10. Can extreme weather conditions impact the likelihood of triggering the OBDII code C1404 related to Rear Speed Sensor Left Malfunction in a Toyota?

- Extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially exacerbate existing sensor or wiring issues, leading to the triggering of the C1404 fault code.

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