C1439 2018 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 2018 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 2018 Toyota RAV4 Description
What are the Possible Causes of the DTC C1439 2018 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 2018 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 2018 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 2018 Toyota RAV4 code?
Need more information on how to fix the C1439 2018 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1439 2018 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C1439 2018 Toyota RAV4 Code
1. What are the common symptoms of OBDII code C1439 in a 2018 Toyota RAV4?
- Common symptoms include the traction control light staying on, the stability control system not functioning properly, and potential loss of steering control assistance.
2. What does the OBDII code C1439 "Steering Angle Sensor Initialization Incomplete" indicate in a 2018 Toyota RAV4?
- This code indicates that the steering angle sensor in the vehicle has not been initialized or calibrated properly.
3. What are the possible causes of the steering angle sensor initialization incomplete in a 2018 Toyota RAV4?
- Possible causes include a faulty steering angle sensor, a weak car battery, a software glitch, or issues with the vehicle's electronic stability control system.
4. How can I fix the steering angle sensor initialization incomplete issue in my 2018 Toyota RAV4?
- To fix this issue, you can try recalibrating the steering angle sensor using a diagnostic scan tool, ensuring the battery is in good condition, checking for any loose connections, and updating the vehicle's software if necessary.
5. Can I drive my 2018 Toyota RAV4 with the steering angle sensor initialization incomplete issue?
- It is not recommended to drive the vehicle with this issue as it may affect the stability control system and compromise your ability to steer safely. It is best to address the problem as soon as possible.
6. How much does it typically cost to repair the steering angle sensor initialization incomplete problem in a 2018 Toyota RAV4?
- Repair costs can vary depending on the exact cause of the issue, but it may range from $100 to $500, including parts and labor.
7. Is it possible to reset the steering angle sensor without a diagnostic scan tool in a 2018 Toyota RAV4?
- It is not recommended to reset the steering angle sensor without a diagnostic scan tool, as proper calibration is crucial for the safe operation of the vehicle.
8. Will disconnecting the car battery reset the steering angle sensor in a 2018 Toyota RAV4?
- Disconnecting the car battery may reset some vehicle systems, but it is unlikely to properly recalibrate the steering angle sensor. It is best to use a diagnostic scan tool for this task.
9. How long does it take to initialize the steering angle sensor in a 2018 Toyota RAV4?
- The process of initializing the steering angle sensor typically takes a few minutes to complete once the proper procedures are followed using a diagnostic scan tool.
10. Can a DIY enthusiast attempt to fix the steering angle sensor initialization incomplete issue in a 2018 Toyota RAV4?
- While some basic troubleshooting steps can be performed by a DIY enthusiast, calibrating the steering angle sensor properly may require specialized tools and knowledge best left to professional technicians.
Discuss the causes and fixes for C1439 2018 Toyota RAV4 OBDII Code
Code C1439 2018 Toyota RAV4 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
