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Home >> Cadillac >> 2013 >> SRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 188 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Audio/Video Player Adapter - Audio or Video Malfunction >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify no DTCs are present.
    • If no DTCs are present 
  2. Ignition ON, rear seat entertainment system ON.
  3. Connect the EL-50334-20 Multi-Media Interface Tester (MIT) to the rear seat entertainment system USB port and select the USB test mode.
  4. Verify the audio from the EL-50334-20 Multi-Media Interface Tester (MIT) is heard through the rear seat entertainment system while operating the system to play audio from the test tool.
    • If audio is not heard from the test tool 
    1. Insert an SD card with compatible media into the SD card slot.
    2. Verify the media on the SD card can be accessed while operating the system to connect to the SD card.
    • If the SD card reader cannot be accessed, refer to Circuit/System Testing- USB Port and SD Card Reader.
    • If the SD card reader can be accessed, replace the X82 Audio/Video Input Adapter.
    • If audio is heard from the test tool 
  5. Insert an SD card with compatible media into the SD card slot.
  6. Verify the media on the SD card can be accessed while operating the system to connect to the SD card.
    • If the SD card reader cannot be accessed 

      Refer to Circuit/System Testing- USB Port and SD Card Reader

    • If the SD card reader can be accessed 
  7. Connect a compatible device to the X82 Audio/Video Input Adapter RCA jacks. Operate the rear seat entertainment system to connect to the RCA jacks as the source.
  8. Verify that audio and video from the device can be accessed while operating the device.
    • If the audio or video from the device cannot be accessed 

      Refer to Circuit/System Testing- Audio/Video Input

    • If the audio or video from the device can be accessed 
  9. Connect a wired headphone to the X82 Audio/Video Input Adapter headphone jack. Operate the rear seat entertainment system to connect an available audio source to the wired headphone jack.
  10. Verify that audio from the source can be heard with the wired headphones, adjusting the rotary volume control as necessary.
    • If the audio cannot be heard 

      Refer to Circuit/System Testing- Wired Headphone Jack

    • If the audio can be heard 
  11. Verify the wired headphone audio volume increases and decreases while operating the rotary volume control.
    • If the wired headphone audio volume cannot be adjusted 

      Test or replace the X82 Audio/Video Input Adapter

    • If the wired headphone audio volume can be adjusted 
  12. All OK.
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