C1402 2018 Toyota RAV4 Code - Front Speed Sensor Left Malfunction
Quick Answer
The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Front Speed Sensor Left, Front Speed Sensor Left Rotor (Front Axle Hub Sub-Assembly Left), Front Speed Sensor Left harness is open or shorted. 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 2018 Toyota RAV4 indicates Front Speed Sensor Left Malfunction.
- Common causes
- Common causes include Faulty Front Speed Sensor Left, Front Speed Sensor Left Rotor (Front Axle Hub Sub-Assembly Left), Front Speed Sensor Left harness is open or shorted.
- 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.
Code C1402 2018 Toyota RAV4 Description
What are the Possible Causes of the DTC C1402 2018 Toyota RAV4?
- Faulty Front Speed Sensor Left
- Front Speed Sensor Left Rotor (Front Axle Hub Sub-Assembly Left)
- Front Speed Sensor Left harness is open or shorted
- Front Speed Sensor Left circuit poor electrical connection
How to Fix the DTC C1402 2018 Toyota RAV4?
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.
Code Tech Notes
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1402 2018 Toyota RAV4 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.
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Frequently Asked Questions about C1402 2018 Toyota RAV4 Code
1. What does the OBDII code C1402 mean on a 2018 Toyota RAV4?
C1402 indicates a malfunction in the front left wheel speed sensor, which is part of the ABS (Anti-lock Braking System).
2. What are the common symptoms of code C1402 in a 2018 Toyota RAV4?
Symptoms may include the ABS warning light turning on, reduced ABS functionality, or loss of traction control.
3. What causes the C1402 code to appear on a Toyota RAV4?
The code is typically caused by a faulty front left wheel speed sensor, damaged sensor wiring, a dirty or damaged tone ring, or a failed ABS control module.
4. Can I drive my 2018 Toyota RAV4 with the C1402 code?
While the vehicle may still be drivable, the ABS and traction control systems may not function properly, increasing the risk of skidding in slippery conditions.
5. How do I diagnose the C1402 code on a Toyota RAV4?
Start by visually inspecting the front left wheel speed sensor and its wiring for damage. Use a multimeter to test the sensor and scan the ABS system with an OBDII scanner to confirm the fault.
6. What is the front left wheel speed sensor, and what does it do?
The wheel speed sensor monitors the rotational speed of the wheel and sends this data to the ABS module to help maintain traction and prevent wheel lock-up.
7. How do I fix the C1402 code on my 2018 Toyota RAV4?
To fix the issue, replace the faulty wheel speed sensor, repair damaged wiring, or clean/replace the tone ring if it’s dirty or broken.
8. How much does it cost to repair a C1402 code on a Toyota RAV4?
The cost to replace a wheel speed sensor typically ranges from $150 to $400, depending on labor rates and parts pricing.
9. Can a dirty tone ring cause a C1402 code?
Yes, dirt, debris, or damage to the tone ring can cause incorrect readings from the speed sensor, triggering the code.
10. Do I need to clear the C1402 code after repairs?
Yes, after completing repairs, use an OBDII scanner to clear the code and verify that it does not return during a test drive.
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