what causes my Toyota Camry XV70 (2018-2024) steering wheel to turn by itself

Solution

1. Preparation

• Gather Tools: OBD-II scanner, multimeter, socket set, torque wrench, steering wheel puller (if necessary).
• Safety Precautions: Disconnect the battery before working on electrical systems. Allow the vehicle to cool before inspection.

2. Address Steering Angle Sensor

• Remove Steering Wheel:
  • Use a steering wheel puller to carefully detach the steering wheel.
  • Disconnect the airbag connector (ensure battery is disconnected).
• Replace or Calibrate Sensor:
  • If faulty, replace the steering angle sensor with a new unit.
  • If calibration is needed, use an OBD-II scanner to recalibrate the sensor.

3. Inspect and Replace Power Steering Components

• Check Power Steering Fluid:
  • If fluid is low, top off with the recommended type (usually ATF or specific power steering fluid).
• Inspect Power Steering Pump:
  • If noise or signs of failure are present, replace the power steering pump.

4. Wheel Alignment Adjustment

• Perform Wheel Alignment:
  • Take the vehicle to a certified alignment shop to correct any misalignment.
  • Ensure all alignment settings meet manufacturer specifications.