C1439 2017 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 2017 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 2017 Toyota RAV4 Description
What are the Possible Causes of the DTC C1439 2017 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 2017 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 2017 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 2017 Toyota RAV4 code?
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Need Help with the Code?
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Frequently Asked Questions about C1439 2017 Toyota RAV4 Code
What does the OBDII code C1439 mean on a 2017 Toyota RAV4?
1. C1439 indicates that the Steering Angle Sensor (SAS) initialization is incomplete, meaning the sensor has not been properly calibrated. 2.
What are common symptoms of the C1439 code in a 2017 Toyota RAV4?
Symptoms may include the vehicle’s traction control or stability control systems being disabled, warning lights on the dashboard, and improper steering assistance behavior. 3.
What causes the C1439 code to appear on a 2017 Toyota RAV4?
Common causes include a recent battery disconnection, replacement of the steering angle sensor, or alignment work without performing the required SAS calibration. 4.
How do you fix the C1439 code on a 2017 Toyota RAV4?
The code can be resolved by performing a Steering Angle Sensor (SAS) initialization using a compatible scan tool or following the manufacturer’s calibration procedure. 5.
Can I drive with the C1439 code on my 2017 Toyota RAV4?
While the vehicle may still be drivable, the stability and traction control systems may be impaired, which could compromise safety in certain driving conditions. 6.
Do I need special tools to fix the C1439 code on a 2017 Toyota RAV4?
Yes, a professional scan tool capable of performing Steering Angle Sensor (SAS) calibration is required to correctly initialize the sensor. 7.
Does wheel alignment affect the C1439 code in a 2017 Toyota RAV4?
Yes, performing a wheel alignment without recalibrating the Steering Angle Sensor can trigger the C1439 code. 8.
How much does it cost to fix the C1439 code on a 2017 Toyota RAV4?
The cost can vary, but a professional recalibration service typically ranges from $50 to $150, depending on the shop and location. 9.
Can I reset the C1439 code on my 2017 Toyota RAV4 by disconnecting the battery?
No, disconnecting the battery will not resolve the issue. The Steering Angle Sensor must be properly initialized using a scan tool. 10.
Is C1439 a serious issue on a 2017 Toyota RAV4?
While not immediately dangerous, it can affect critical safety systems like traction and stability control, so it should be addressed promptly.
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