Combined Sensor Inspection

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition switch off.
Connect the WDS or equivalent to the DLC-2.
Select the following PIDs, then inspect the lateral acceleration speed and the yaw rate.
- LAT ACC: (lateral acceleration speed)
- YAW_RATE: (yaw rate)
  1. Lateral acceleration speed inspection
    
    Fig 1: Locating DLC-2 Connector
    Courtesy of MAZDA MOTORS CORP.
    1. Verify the LAT ACC change when the combined sensor is tilted to the left and right.
      - If there is any malfunction, replace the combined sensor.
    Standard
    
    When the sensor is tilted to the right:
    
    LAT ACC changes negatively.
    
    When the sensor is tilted to the left:
    
    LAT ACC changes positively.
    
    Fig 2: Combined Sensor Tilting Direction
    Courtesy of MAZDA MOTORS CORP.
  2. Yaw rate inspection
    1. Verify the YAW_RATE change when the combined sensor is rotated to the left and right.
      - If there is any malfunction, replace the combined sensor.
    Standard
    
    When the sensor is rotated to the right:
    
    YAW_RATE changes negatively.
    
    When the sensor is rotated to the left:
    
    YAW_RATE changes positively.
    
    Fig 3: Combined Sensor Rotating Direction
    Courtesy of MAZDA MOTORS CORP.