C1402 Scion 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 Scion 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 Scion Description
What are the Possible Causes of the DTC C1402 Scion?
- 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 Scion?
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 Scion 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 Scion Code
1. What are the common symptoms of OBDII code C1402 in a Scion related to the Front Speed Sensor Left Malfunction?
- Common symptoms include ABS warning light illuminated on the dashboard, traction control system malfunctions, and potential loss of traction control functionality.
2. What can cause the Front Speed Sensor Left Malfunction code C1402 in a Scion?
- Possible causes include a faulty front left speed sensor, damaged wiring or connectors leading to the sensor, or issues with the ABS control module.
3. How can I diagnose the Front Speed Sensor Left Malfunction code C1402 in my Scion?
- Diagnostic steps may involve visually inspecting the front left speed sensor and its connections, testing the sensor's resistance, and using a scan tool to check for stored fault codes.
4. Is it safe to continue driving my Scion with the C1402 OBDII code indicating a Front Speed Sensor Left Malfunction?
- It is not recommended to drive the vehicle with this code present, as it can affect the proper functioning of the ABS and traction control systems, potentially compromising safety.
5. Can I repair the Front Speed Sensor Left Malfunction issue in my Scion myself?
- Depending on your skill level and access to tools, you may be able to replace the front left speed sensor or repair damaged wiring yourself. However, professional diagnosis and repair are recommended for accurate and reliable fixes.
6. Are there any specific tips for repairing the C1402 code related to the Front Speed Sensor Left Malfunction in a Scion?
- Ensure you use the correct replacement sensor for your Scion model, follow proper sensor installation procedures, and clear the fault codes after completing the repair to reset the system.
7. How much does it typically cost to fix the Front Speed Sensor Left Malfunction code C1402 in a Scion?
- The cost of repairs can vary depending on the exact cause of the issue, but it may involve expenses for diagnostic labor, replacement parts, and potentially reprogramming the ABS control module.
8. Will resetting the OBDII code C1402 on my Scion make the issue go away?
- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Front Speed Sensor Left Malfunction. Proper diagnosis and repair are necessary.
9. Can extreme weather conditions or road debris trigger the C1402 code in a Scion?
- Yes, harsh weather conditions, as well as road debris damaging the speed sensor or its wiring, can potentially lead to the Front Speed Sensor Left Malfunction code being triggered.
10. Is the Front Speed Sensor Left Malfunction code C1402 specific to Scion vehicles, or can it occur in other car makes and models?
- While the specific code may vary across different manufacturers, similar issues related to front speed sensor malfunctions can occur in various car makes and models equipped with ABS and traction control systems.
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