AUDIO SYSTEM SOUND IS WEAK OR DISTORTED (display is normal)

NOTE: 

• Check the vehicle 12 volt battery condition first - Refer to:

12 Volt Battery Test (With Auto Idle Stop System) or

12 Volt Battery Test (Without Auto Idle Stop System) .

• Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   - 2. Turn on the audio system, and check for sound in each mode (AM/FM, USB, AUX, and CD).

   Is there sound from the speakers, and is the sound quality normal in each mode?

   YES 

   Intermittent failure. The system is OK at this time. Check for loose connections at the audio-navigation unit or audio unit and each speaker.

   NO: Sound is weak or distorted in all mode

   Go To: 

   No sound is heard from the speaker(s) (display is normal) [With Navigation, Without Stereo Amplifier] (2016 2017 2018) 

   No sound is heard from the speaker(s) (display is normal) [With Navigation, With Stereo Amplifier] (2016 2017 2018) 

   No sound is heard from the speaker(s) (display is normal) (Without Navigation] (2016 2017 2018) 

   NO: Sound is weak or distorted in AM/FM mode

   Go To: 

   AM/FM Radio Display Is Blank Or No Station Information Is Displayed (With Navigation) (2016 2017 2018) 

   AM/FM Radio Display Is Blank Or No Station Information Is Displayed [Without Navigation {Display Audio Type (8-inch Screen)}] (2016 2017 2018) 

   NO: No sound is heard in USB mode

   Go To: 

   USB Device Does Not Function (With Navigation, With Auto Idle Stop System) (2016 2017 2018) 

   USB Device Does Not Function (With Navigation, Without Auto Idle Stop System) (2016 2017 2018) 

   USB Device Does Not Function [Without Navigation {Color Audio Type (5-inch Screen)}] (2016 2017 2018) 

   USB device does not function [Without Navigation {Display Audio Type (8-inch Screen)}] (2016 2017 2018) 

   NO: No sound is heard in AUX mode

   Go To: 

   Auxiliary Input Sound Is Low Or Cannot Be Heard [Without Navigation {Color Audio Type (5-inch Screen)}] 

   Auxiliary Input Sound Is Low Or Cannot Be Heard [Without Navigation {Display Audio Type (8-inch Screen)}] (2016 2017 2018) 

   Auxiliary Input Sound Is Low Or Cannot Be Heard (With Navigation) (2016 2017 2018) 

   NO: Sound is weak or distorted in CD mode

   Go To: 

   Audio Disc Does Not Play