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Home >> GMC >> 2011 >> Acadia SL, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System >> Diagnostic Information and Procedures >> Front Fog Lamps Malfunction >> Component Testing

Component Testing

Headlamp Switch

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for infinite resistance between the signal terminal 6 and the ground terminal 8 with the switch in the open position.
    • If not the specified value, replace the headlamp switch.
  3. Test for less than 2.0 Ω between the signal terminal 6 and the ground terminal 8 with the switch in the closed position.
    • If greater than the specified range, replace the headlamp switch.