C1440 Lexus Code - Steering Angle Sensor Unusual Bank Angle Detected
Quick Answer
If the Skid Control ECU (Brake Actuator Assembly) determines that the vehicle is being driven at a steep bank angle, the Skid Control ECU (Brake Actuator Assembly) stores Diagnostic Trouble Code (DTC) C1440 while VSC operation is temporarily disabled. Common causes include Faulty Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly), Yaw Rate and Acceleration Sensor harness is open or shorted, Yaw Rate and Acceleration Sensor circuit poor electrical connection. 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
- C1440 Lexus indicates Steering Angle Sensor Unusual Bank Angle Detected.
- Common causes
- Common causes include Faulty Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly), Yaw Rate and Acceleration Sensor harness is open or shorted, Yaw Rate and Acceleration Sensor circuit poor electrical connection.
- 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 C1440 Lexus Description
What are the Possible Causes of the DTC C1440 Lexus?
- Faulty Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly)
- Yaw Rate and Acceleration Sensor harness is open or shorted
- Yaw Rate and Acceleration Sensor circuit poor electrical connection
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C1440 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1440 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 C1440 Lexus Code
1. What does the OBDII code C1440 mean on a Lexus?
C1440 on a Lexus indicates that the steering angle sensor has detected an unusual bank angle, which may interfere with the vehicle's stability control system.
2. What are the symptoms of the C1440 code on a Lexus?
Common symptoms include the illumination of the ABS or traction control warning lights, impaired stability control functionality, and potential difficulty in steering.
3. What causes the C1440 code to appear on a Lexus?
The C1440 code is typically caused by a faulty steering angle sensor, misalignment of the sensor, damaged wiring, or a malfunction in the vehicle’s stability control system.
4. Can driving with the C1440 code damage my Lexus?
While the car may still be drivable, ignoring the C1440 code can compromise safety systems like traction control and stability, increasing the risk of accidents.
5. How is the C1440 code diagnosed in a Lexus?
A technician will use an OBDII scanner to retrieve the code, then inspect the steering angle sensor, check related wiring, and verify the sensor's calibration.
6. How do you fix the C1440 code on a Lexus?
Fixes may include recalibrating the steering angle sensor, repairing or replacing damaged wiring, or replacing the faulty sensor itself.
7. Can I reset the C1440 code by disconnecting the battery?
Disconnecting the battery may temporarily clear the code, but if the issue persists, the code will return until the underlying problem is resolved.
8. Is the C1440 code a common issue in Lexus vehicles?
It’s not extremely common, but it can occur, especially if the steering angle sensor is misaligned due to repairs, wheel alignment issues, or sensor wear.
9. How much does it cost to fix the C1440 code on a Lexus?
The repair cost can range from $150 to $500, depending on whether the sensor needs recalibration, repair, or replacement.
10. Can I fix the C1440 code on my Lexus myself?
If you have experience with vehicle diagnostics and access to a scan tool, you may be able to recalibrate the steering angle sensor or inspect wiring. However, professional assistance is recommended for accurate repairs.
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