1. Disconnect the negative battery cable..
2. Remove the inner garnish..
3. Remove the tweeter..
4. Verify the resistance between tweeter terminals.

If not within the specification, replace the tweeter.

Without Bose®: 3.4—4.6 ohms
With Bose®: 3.06—3.74 ohms
Supplier Identification Procedure [Audio]
Tweeter Removal/InstallationJoint Shaft Removal/Installation [Skyactiv G 2.0]
CAUTION:
Performing the following procedures without first removing the ABS wheel-speed
sensor may possibly cause an open circuit in the wiring harness if it is pulled
by mistake. Before performing the following procedures, remove the ABS wheel-speed
sensor connector (axle side) and ...
Audio Unit
NOTE:
“iPod” is a registered trademark of Apple Inc. in the United States and other
countries.
Purpose
The audio unit controls the CD, radio, exterior input devices (AUX/USB/iPod)
and the display.
Function
Records the following items which the user has set ...
Power Brake Unit Removal/Installation [Mzr 2.0, Skyactiv G 2.0, Mzr 2.5]
CAUTION:
Once the brake switch clearance has automatically been adjusted, it cannot
be adjusted again. Therefore, replace the switch with a new one when replacing
the power brake unit or performing any procedure that changes the pedal stroke.
Secure the steering wheel using tap ...