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Home >> Chevrolet >> 2012 >> Orlando LS, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> Speaker Malfunction >> Circuit/System Testing

Circuit/System Testing

    NOTE:

    To prevent misdiagnosis, the door chime must be OFF during testing. Ensure the driver door latch is closed during testing.

  1. Ignition OFF, disconnect the harness connector at the appropriate P19 speaker.
  2. Radio ON, mute OFF, test for 5.0-7.5 V between each audio signal circuit terminal 1 and terminal 2 and ground.
    • If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the A11 radio.
    • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the A11 radio.
  3. Insert the EL-50334-6 Audio Test CD from the EL-50334-50  USB cable and adapter kit.
  4. Play track number three (50 Hz bass test tone) from the test CD. Test for 49-51 Hz AC between each signal circuit terminal 1 and terminal 2 and ground.
    • If not the specified value, replace the A11 radio.
  5. If all circuits test normal, replace the P19 speaker.