Circuit/System Verification

Auxiliary Audio Input Jack

1. Verify no DTCs are present.
   • If any DTCs are present 

     Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

   • If no DTCs are present 
2. Ignition ON, radio ON.
3. Verify the infotainment system switches to AUX as the audio source with the EL-50334-20  Multi-Media Interface Tester (MIT) connected to the auxiliary audio input jack.
   • If the infotainment system does not switch to AUX as the audio source 

     Refer to Circuit/System Testing - Auxiliary Input Jack .

   • If the infotainment system switches to AUX as the audio source 
4. Verify the audio from the EL-50334-20  Multi-Media Interface Tester (MIT) is heard through the vehicle infotainment system while operating the test tool to begin audio playback.
   • If audio is not heard from the test tool 

     Refer to Circuit/System Testing - Auxiliary Input Jack .

   • If audio is heard from the test tool 
5. All OK

USB Port

1. Verify no DTCs are present.
   • If any DTCs are present 

     Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

   • If no DTCs are present 
2. Ignition ON, radio ON.
3. Verify the infotainment system switches to USB as the audio source with the EL-50334-20  Multi-Media Interface Tester (MIT) connected to the USB port.
   • If the infotainment system does not switch to USB as the audio source 

     Refer to Circuit/System Testing - USB Port .

   • If the infotainment system switches to USB as the audio source 
4. Verify the audio from the EL-50334-20  Multi-Media Interface Tester (MIT) is heard through the vehicle infotainment system while operating the system to play audio from the test tool.
   • If audio is not heard from the test tool 

     Refer to Circuit/System Testing - USB Port .

   • If audio is heard from the device 
5. All OK.