Engine-CodesToyota – C1402 2015 Toyota RAV4

C1402 2015 Toyota RAV4 Code - Front Speed Sensor Left Malfunction

Quick Answer

The C1402 diagnostic trouble code (DTC) for a 2015 Toyota RAV4 indicates a malfunction in the front speed sensor located on the left side of the vehicle. Common causes include Damaged or worn front speed sensor, Corrosion or debris affecting the sensor's performance, Electrical connection issues or wiring damage. 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
C1402 2015 Toyota RAV4 indicates Front Speed Sensor Left Malfunction.
Common causes
Common causes include Damaged or worn front speed sensor, Corrosion or debris affecting the sensor's performance, Electrical connection issues or wiring damage.
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 12, 2024
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Code C1402 2015 Toyota RAV4 Description

The C1402 diagnostic trouble code (DTC) for a 2015 Toyota RAV4 indicates a malfunction in the front speed sensor located on the left side of the vehicle. The speed sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. It is responsible for measuring the speed of the wheel and sending this information to the vehicle's electronic control unit (ECU). This data is used to calculate wheel speed and ensure proper operation of the ABS and traction control systems.

OBDII Code C1402 2015 Toyota RAV4 - Front Speed Sensor Left Malfunction
C1402 2015 Toyota RAV4 Code - Front Speed Sensor Left Malfunction

Common Causes of C1402 2015 Toyota RAV4

  1. Damaged or worn front speed sensor
  2. Corrosion or debris affecting the sensor's performance
  3. Electrical connection issues or wiring damage
  4. Faulty ABS control module
  5. Malfunctioning wheel bearings affecting sensor performance

Symptoms of C1402 2015 Toyota RAV4

  1. Illumination of the ABS warning light on the dashboard
  2. Traction control system light may illuminate
  3. Increased stopping distance or difficulty braking
  4. Inaccurate speedometer readings
  5. ABS system may engage unexpectedly or not engage when needed

How to Fix C1402 2015 Toyota RAV4

  1. Diagnose the issue using a professional OBD-II scanner to confirm the C1402 code and pinpoint the exact cause of the malfunction.
  2. Inspect the front speed sensor and its wiring harness for any visible damage, corrosion, or debris. Clean or replace as necessary.
  3. Test the sensor's resistance and output voltage to ensure it is functioning within specifications.
  4. If the sensor is faulty, replace it with a new OEM or high-quality aftermarket sensor. Properly secure the sensor in place and reconnect the wiring harness.
  5. Clear the DTC using the OBD-II scanner and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix C1402 2015 Toyota RAV4

The cost of repairing a front speed sensor left malfunction on a 2015 Toyota RAV4 can vary depending on the specific cause of the issue and whether the sensor needs to be replaced. On average, the cost of a new front speed sensor for a Toyota RAV4 ranges from $50 to $150, while labor costs can range from $100 to $300. Therefore, the total repair cost could fall anywhere between $150 and $450. It's important to note that prices can vary based on the location of the repair shop, the technician's rates, and any additional parts or services required. It is advisable to obtain quotes from multiple reputable repair shops to ensure a fair price for the repair.

Tech Notes for C1402 2015 Toyota RAV4

If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.

If there is iron powder sticking to the rotor, this will result in a malfunction, so confirm that the rotor is not contaminated with foreign material before replacing the sensor.

Check the speed sensor signal after cleaning or replacement.

On most vehicles, the Front Speed Sensor Rotor is incorporated into the Front Axle Hub Sub-Assembly. If the Speed Sensor Rotor needs to be replaced, replace it together with the Front Axle Hub Sub-Assembly.

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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 C1402 2015 Toyota RAV4 Code

1. What does the OBDII code C1402 mean on a 2015 Toyota RAV4?

C1402 indicates a malfunction in the front left speed sensor circuit, which is responsible for monitoring the rotational speed of the left front wheel.

2. What are the common symptoms of code C1402 in a 2015 Toyota RAV4?

Common symptoms include the ABS warning light turning on, traction or stability control becoming disabled, and potentially reduced braking performance.

3. What causes the C1402 code to appear in a 2015 Toyota RAV4?

The code can be caused by a faulty front left speed sensor, damaged wiring, corroded connectors, or issues with the ABS control module.

4. How can I diagnose the C1402 code on my 2015 Toyota RAV4?

Inspect the front left speed sensor, check for damaged or corroded wiring and connectors, and use a multimeter to test the sensor’s resistance and signal output.

5. Can I still drive my 2015 Toyota RAV4 with the C1402 code?

While the vehicle may still be drivable, it’s unsafe to drive with a compromised ABS system as it can affect braking and stability, especially in slippery conditions.

6. How do I fix the C1402 code on a 2015 Toyota RAV4?

Repair or replace the front left speed sensor, fix damaged wiring or connectors, and clear the code with a scan tool after repairs.

7. How much does it cost to repair the C1402 code in a 2015 Toyota RAV4?

The cost can range from $100 to $300, depending on whether the sensor needs replacement or wiring repairs are required.

8. Can a dirty wheel hub cause the C1402 code?

Yes, debris or dirt obstructing the speed sensor or the wheel hub can interfere with sensor readings and trigger the code.

9. Will replacing the sensor alone always fix the C1402 code?

Not always. If the wiring, connectors, or ABS module are also faulty, replacing just the sensor may not resolve the issue.

10. How can I prevent the C1402 code from recurring in my 2015 Toyota RAV4?

Regularly inspect and clean the wheel hubs, ensure wiring and connectors are intact, and address any ABS system issues promptly.

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