Forward-G Sensor Inspection

WARNING: This page is about a different car, the 2007 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Connect the connector.
Turn ignition switch on, verify the voltage between terminals A and ground terminal E under the following conditions.
1. Horizontal
  Voltage
  
  2.2-2.8 V
  
  Fig 1: Identifying Combined Sensor Connector Terminals
  Courtesy of MAZDA MOTORS CORP.
2. Acceleration (inclined 90° from horizontal)
  Voltage
  
  3.1-3.9 V
  
  Fig 2: Identifying Combined Sensor Acceleration Position
  Courtesy of MAZDA MOTORS CORP.
3. Deceleration (decline 90° from horizontal)
  Voltage
  
  1.2-1.8 V
  
  Fig 3: Identifying Combined Sensor Deceleration Position
  Courtesy of MAZDA MOTORS CORP.