Circuit/System Verification

WARNING: This page is about a different car, the 2013 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Auxiliary Audio Input Jack

Verify no DTCs are present.
- If any DTCs are present
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no DTCs are present
Ignition ON, radio ON.
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
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.
All OK

USB Port

Verify no DTCs are present.
- If any DTCs are present
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no DTCs are present
Ignition ON, radio ON.
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
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
All OK.