1. Disconnect the negative battery cable..
2. Remove the center speaker grille..
3. Remove the front center speaker..
4. Verify that the resistance between the front center speaker terminals is as indicated in the table.

If not as indicated in the table, replace the front center speaker.

Entertainment System
Front Center Speaker Removal/InstallationIdentification Number Locations
Vehicle Identification Number (VIN)
If the VIN plate is adhered to the dashboard, it is located in the position
shown in the figure.
Engine Type/Number
SKYACTIV-G 2.0
SKYACTIV-G 2.5
...
Electronic Spark Advance Control [Skyactiv G 2.0]
Outline
Controls ignition to optimum timing according to engine operation conditions.
Serviceability has been improved by eliminating the necessity of ignition
timing adjustment.
The PCM determines the engine operation conditions based on input signals
from each sensor a ...
Crankshaft Position (CKP) Sensor Inspection
Visual Inspection
CAUTION:
When foreign material such as an iron chip is on the CKP sensor, it can cause
abnormal output from the sensor because of flux turbulence and adversely affect
the engine control. Be sure there is no foreign material on the CKP sensor when
replacing.
...