Speaker Inspection: Tweeter

1. Connect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
2. Remove the tweeter. (See TWEETER REMOVAL/INSTALLATION .)
3. Inspect the resistance between positions A and B shown in the figure.

Tweeter resistance 

Without Bose®: 3.9-4.7 ohms

With Bose®: 3.4 ohms

Courtesy of MAZDA MOTORS CORP.

Courtesy of MAZDA MOTORS CORP.

• If not within the specification, replace the tweeter. (See TWEETER REMOVAL/INSTALLATION .)