C1404 Scion Code - Rear 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 Rear Speed Sensor Left (Rear Axle Hub and Bearing Assembly Left), Rear Speed Sensor Left Rotor (Rear Axle Hub and Bearing Assembly Left), Rear 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
- C1404 Scion indicates Rear Speed Sensor Left Malfunction.
- Common causes
- Common causes include Faulty Rear Speed Sensor Left (Rear Axle Hub and Bearing Assembly Left), Rear Speed Sensor Left Rotor (Rear Axle Hub and Bearing Assembly Left), Rear 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 C1404 Scion Description
What are the Possible Causes of the DTC C1404 Scion?
- Faulty Rear Speed Sensor Left (Rear Axle Hub and Bearing Assembly Left)
- Rear Speed Sensor Left Rotor (Rear Axle Hub and Bearing Assembly Left)
- Rear Speed Sensor Left harness is open or shorted
- Rear Speed Sensor Left circuit poor electrical connection
How to Fix the DTC C1404 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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1404 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 C1404 Scion Code
1. What are the common symptoms of OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
The common symptoms include ABS warning light illuminated on the dashboard, traction control system malfunctions, and potential loss of stability control.
2. What causes the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
The code is typically triggered by a faulty rear speed sensor on the left side of the vehicle. This sensor is responsible for monitoring the speed of the wheel and providing data to the ABS system.
3. How can I diagnose the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
Diagnosing this code involves using an OBDII scanner to retrieve the specific code, inspecting the rear speed sensor and its wiring for any damage, and testing the sensor's functionality.
4. Can I continue driving with the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
It is not recommended to drive with this code active, as it can affect the proper functioning of the ABS and traction control systems, potentially compromising vehicle safety.
5. How do I repair the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
The typical repair involves replacing the faulty rear speed sensor on the left side of the vehicle with a new, OEM-quality part. Ensure proper installation and calibration for optimal performance.
6. Are there any DIY tips for fixing the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
While replacing the rear speed sensor may require some technical knowledge, DIY enthusiasts can follow detailed online guides and tutorials to perform the repair at home. However, professional help is recommended for accurate diagnosis and repair.
7. Will resetting the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction make it go away permanently?
Simply resetting the code may temporarily clear the warning light, but if the underlying issue with the rear speed sensor is not fixed, the code is likely to return. Proper diagnosis and repair are essential for a permanent solution.
8. How much does it cost to repair the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
The cost of repairing this code can vary depending on the vehicle model, labor rates, and whether you choose to replace the sensor yourself or have a professional mechanic do the job. It's advisable to obtain quotes from different sources for an accurate estimate.
9. Can extreme weather conditions cause the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
While extreme weather conditions may not directly cause this code, they can exacerbate existing issues with the rear speed sensor or its wiring. It's important to keep the sensor and its connections well-protected to prevent malfunctions.
10. How often should I inspect the rear speed sensor to prevent the OBDII code C1404 (Scion) Rear Speed Sensor Left Malfunction?
Regular inspections during routine maintenance checks or whenever you experience symptoms like ABS warning lights can help detect potential issues with the rear speed sensor early on, reducing the risk of triggering the code.
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