With A/C Only or Heater Only

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

Connect the battery positive voltage to terminal B and ground to terminal A.
Verify that the bulb illuminates.
- If not as specified, replace the bulb.
  
  Fig 1: Test Condition Table For Terminals
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Inspecting Part Side Connector Terminal
  Courtesy of MAZDA MOTORS CORP.