Tweeter Inspection

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Remove the inner garnish. See INNER GARNISH REMOVAL/INSTALLATION .
Remove the tweeter. See TWEETER REMOVAL/INSTALLATION .
Verify the resistance between tweeter terminals.
- If not within the specification, replace the tweeter.
  
  Fig 1: Terminal Resistance Chart
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Identifying Tweeter Connector Terminal
  Courtesy of MAZDA MOTORS CORP.
Resistance

Without Bose®: 3.4-4.6 ohms

With Bose®: 3.06-3.94 ohms