Steering Angle Sensor Inspection

WARNING: This page is about a different car, the 2009 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

Remove the column cover. See COLUMN COVER REMOVAL/INSTALLATION .
Turn the steering wheel to the right and left, and verify that the voltage and pulses at the terminals are as shown in the figure.
- If not as specified, replace the steering angle sensor.
  
  Fig 1: Steering Angle Sensor Voltage Graph
  Courtesy of MAZDA MOTORS CORP.