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Home >> Saab >> 2011 >> 9-5 Turbo6 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting And Signaling Systems >> Fault diagnosis, symptoms >> Courtesy Lamps Malfunction >> Circuit/System Testing >> Courtesy Lamp Circuit Malfunction

Courtesy Lamp Circuit Malfunction

  1. Ignition OFF, disconnect the harness connectors at the appropriate inoperative backlighting component.
  2. Test for less than 5 Ω between the black wire of the component and ground.
  3. If greater than the specified range, test the ground circuit for an open/high resistance.
  4. Connect a test lamp between the control circuit of the component grey wire and ground.
  5. Command the Courtesy Lamps Dimming ON and OFF with a scan tool.
  6. If the test lamp is always OFF, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
  7. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 Body Control Module.
  8. If all circuit test normal, test or replace the appropriate inoperative component.
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