Tweeter Inspection

WARNING: This page is about a different car, the 2016 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the A-pillar trim. (See A-PILLAR TRIM REMOVAL/INSTALLATION .)
CAUTION:
- Because the tweeter is built into the condenser, if the tester does not contact the measurement area shown in the figure, the correct resistance cannot be measured.
Inspect the resistance between tweeter terminal A and the measurement area shown in the figure.

Fig 1: Inspecting Resistance Between Tweeter Terminal A And Measurement Area (Without Bose®)
Courtesy of MAZDA MOTORS CORP.

Tweeter resistance
- 3.4-4.6 ohms
  
  Fig 2: Inspecting Resistance Between Tweeter Terminal A And Measurement Area (With Bose®)
  Courtesy of MAZDA MOTORS CORP.
  
  Tweeter resistance
- 3.06-4.74 ohms
- If not within the specification, replace the tweeter. (See TWEETER REMOVAL/INSTALLATION .)