C1404 Lexus 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 Lexus 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 Lexus Description
What are the Possible Causes of the DTC C1404 Lexus?
- 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 Lexus?
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 Lexus 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 Lexus Code
1. What are the common symptoms of OBDII code C1404 in a Lexus related to the Rear Speed Sensor Left malfunction?
- Common symptoms include issues with the vehicle's traction control system, ABS warning light illuminated on the dashboard, and potential loss of traction control functionality.
2. What are the possible causes of the Rear Speed Sensor Left malfunction in a Lexus triggering OBDII code C1404?
- The malfunction could be caused by a faulty rear speed sensor left, damaged wiring or connectors related to the sensor, or issues with the sensor's alignment or mounting.
3. How can I diagnose the Rear Speed Sensor Left malfunction triggering OBDII code C1404 in my Lexus?
- Diagnosing the issue involves visually inspecting the sensor and its wiring, checking for any physical damage, testing the sensor's electrical connections, and using a scan tool to retrieve and analyze the error code data.
4. Is it safe to continue driving my Lexus with OBDII code C1404 indicating a Rear Speed Sensor Left malfunction?
- It is not recommended to drive the vehicle with this issue as it may affect the proper functioning of the traction control system, potentially compromising vehicle safety under certain driving conditions.
5. Can I repair the Rear Speed Sensor Left malfunction triggering OBDII code C1404 in my Lexus by myself?
- While some basic inspections and tests can be done by DIY enthusiasts, diagnosing and repairing the specific cause of the malfunction may require professional expertise and specialized tools, especially for sensor replacement.
6. How much does it typically cost to repair the Rear Speed Sensor Left malfunction associated with OBDII code C1404 in a Lexus?
- The cost of repair can vary depending on the root cause of the issue, labor rates in your area, and whether you choose to replace the sensor yourself or have it done by a professional technician. It's advisable to get a few quotes from local mechanics.
7. Are there any preventive maintenance tips to avoid triggering OBDII code C1404 due to Rear Speed Sensor Left malfunction in a Lexus?
- Regularly inspecting the condition of your vehicle's sensors, ensuring proper wiring connections, and addressing any warning lights or unusual symptoms promptly can help prevent issues like the Rear Speed Sensor Left malfunction.
8. How urgent is it to address the Rear Speed Sensor Left malfunction triggering OBDII code C1404 in a Lexus?
- While the vehicle may still be driveable with this issue, it is important to address it promptly to avoid potential safety risks, further damage to the vehicle's systems, and potentially more costly repairs down the line.
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