C1439 2014 Toyota RAV4 Code - Steering Angle Sensor Initialization Incomplete
Quick Answer
The Skid Control ECU (Brake Actuator Assembly) acquires a steering sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. Common causes include Faulty Steering Angle Sensor, Steering Angle Sensor harness is open or shorted, Steering Angle 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
- C1439 2014 Toyota RAV4 indicates Steering Angle Sensor Initialization Incomplete.
- Common causes
- Common causes include Faulty Steering Angle Sensor, Steering Angle Sensor harness is open or shorted, Steering Angle 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 C1439 2014 Toyota RAV4 Description
What are the Possible Causes of the DTC C1439 2014 Toyota RAV4?
- Faulty Steering Angle Sensor
- Steering Angle Sensor harness is open or shorted
- Steering Angle Sensor circuit poor electrical connection
- Yaw Rate and Acceleration Sensor (for separate type)
- Yaw Rate and Acceleration Sensor (Airbag sensor assembly) (for built-in type)
How to Fix the DTC C1439 2014 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1439 2014 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.
Need more information about the C1439 2014 Toyota RAV4 code?
Need more information on how to fix the C1439 2014 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about C1439 2014 Toyota RAV4 Code
1. What does the OBDII code C1439 mean on a 2014 Toyota RAV4?
C1439 indicates that the Steering Angle Sensor (SAS) initialization is incomplete, meaning the system has not been calibrated properly.
2. What are the symptoms of code C1439 in a 2014 Toyota RAV4?
Common symptoms include the ABS or traction control warning light turning on, and possible issues with stability control functionality.
3. What causes the C1439 code to appear?
This code is typically caused by a failure to initialize the Steering Angle Sensor after a repair, alignment, battery disconnection, or replacement of components in the steering or stabilization system.
4. How do I fix the C1439 code on my Toyota RAV4?
To fix the issue, perform a Steering Angle Sensor (SAS) initialization using a compatible scan tool, following the manufacturer’s instructions.
5. Can I drive my 2014 Toyota RAV4 with the C1439 code?
While the vehicle may still be drivable, traction control and stability features may not function properly, potentially increasing the risk of losing control in certain driving conditions.
6. Do I need special tools to resolve the C1439 code?
Yes, you’ll need a scan tool capable of performing Steering Angle Sensor (SAS) calibration to complete the initialization.
7. Will disconnecting the battery clear the C1439 code?
No, disconnecting the battery will not fix the issue. The Steering Angle Sensor must be properly initialized using a scan tool.
8. Is a wheel alignment necessary to fix the C1439 code?
Not always, but if the wheels are misaligned, it’s recommended to perform an alignment before initializing the Steering Angle Sensor.
9. Can I reset the C1439 code without a mechanic?
If you have access to an appropriate scan tool and follow the correct procedure, you may be able to reset the code yourself. Otherwise, it’s best to consult a professional.
10. What happens if I ignore the C1439 code on my RAV4?
Ignoring the code can lead to impaired traction control and stability system performance, which may compromise safety in challenging road conditions.
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