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Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 401 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Navigation System - Voice Recognition Malfunction >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X2 harness connector at the K73 Telematics Communication Interface Control Module and the X1 harness connector at the A11 Radio.
  2. Ignition ON.
  3. Test for less than 1 V between the signal circuits listed below and ground:
    • voice recognition signal circuit A11 Radio X1 terminal 4
    • voice recognition low reference circuit A11 Radio X1 terminal 5
    • If 1 V greater 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  4. Ignition OFF.
  5. Test for infinite resistance between the circuits listed below and ground:
    • voice recognition signal circuit A11 Radio X1 terminal 4
    • voice recognition low reference circuit A11 Radio X1 terminal 5
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  6. Test for less than 5 Ω between the terminals listed below:
    • A11 Radio X1 terminal 4 and the K73 Telematics Communication Interface Control Module X2 terminal 6
    • A11 Radio X1 terminal 5 and the K73 Telematics Communication Interface Control Module X2 terminal 12
    • If 5 Ω greater 

      Repair the open/high resistance in the circuit.

    • If less than 5 Ω 
  7. Replace the A11 Radio. Connect all harness connectors.
    8. NOTE:

    Refer to the Navigation System Owners Manual for voice recognition use and commands.

  8. Begin voice recognition for the radio and clearly speak one of the available commands.
  9. Verify the infotainment system responds correctly to the command.
    • If the infotainment system does not respond correctly to the command 
    1. Clearly speak a different command.
    2. Verify the infotainment system responds correctly to the command.
      • If the infotainment system does not respond correctly to any commands, replace the K73 Telematics Communication Interface Control Module.
    • If the infotainment system responds correctly to the command 
  10. All OK
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