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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 >> Interior Backlighting Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, observe the scan tool Indicator Backlight Command parameter while operating the dimmer switch from high to low. The parameter should indicate between 5-50% when the backlight switch is moved up and down.
  2. If the reading does not change, refer to DIMMER SWITCH CIRCUIT TEST .
  3. Command the LED Backlight Dimming test with the scan tool. The appropriate incandescent lighting items should go ON and OFF.
  4. If the backlighting does not go ON and OFF, refer to INTERIOR BACKLIGHTING CIRCUIT TEST .
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