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Component Testing

WARNING: This page is about a different car, the 2008 Pontiac G8. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: It is recommended that component testing is performed before circuit testing when diagnosing infotainment unit functions.
  1. Connect the scan tool to the DLC and select Infotainment System / Audio System / Actuator Test / Display / Illumination Mode  .
  2. Ignition On, infotainment unit On.
  3. Select day illumination mode by pressing the Day soft key on the scan tool. The infotainment unit illumination should set to maximum brightness.
  4. Select night illumination mode by pressing the Night soft key on the scan tool. The infotainment unit illumination should dim significantly.
  5. Press the Quit soft key to exit the test.
    • If the illumination mode function does not operate correctly, replace the infotainment unit.
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