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Circuit/System Verification

  1. Verify no DTCs are present.
    • If no DTCs are present 
  2. Verify the radio calibrations are current.
    • If the radio calibrations are not current 

      Reprogram the radio and re-evaluate the concern.

    • If no update calibrations are available 
  3. Vehicle in Service Mode, infotainment system ON.
    NOTE: The MIT tool can be used to test either cellular phone or streaming audio functions. Refer to the tool instructions and perform the appropriate test(s) related to the customers concern in the following steps.
  4. Verify the infotainment system successfully pairs with the MIT tool.
    • If the infotainment system does not successfully pair with the MIT tool. 

      Replace the A11 radio.

    • If the infotainment system successfully pairs with the MIT tool. 
  5. Verify the infotainment system successfully completes the desired feature test using the MIT tool.
    • If the feature test is not successful 

      Replace the A11 radio.

    • If the feature test is successful 
  6. All OK. Refer to Diagnostic Aids .


  1. Vehicle in Service Mode.
  2. Verify the infotainment system successfully pairs with the Multimedia Interface Tool.
    NOTE: The Multimedia Interface Tool can be used to test either cellular phone or streaming audio functions. Refer to the tool instructions and perform the appropriate test(s) related to the customers concern in the following steps.
    • If the infotainment system does not successfully pair with the Multi-Media Interface Tool. 
    1. Replace the Bluetooth® Antenna.
    2. Verify the infotainment system successfully pairs with the Multimedia Interface Tool.
      • If the infotainment system does not successfully pair with the Multimedia Interface Tool, replace the K73 Telematics Communication Interface Control Module.
      • If the infotainment system successfully pairs with the Multimedia Interface Tool.
    3. All OK.
    • If the infotainment system successfully pairs with the Multimedia Interface Tool. 
  3. All OK.
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