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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 >> Headlamp Leveling Malfunction (TT6 TT2) >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate headlamp assembly.
  2. Test for less than 5 Ω between the ground circuit terminal 8 and ground.
  3. If greater than the specified range, test the ground circuit for an open/high resistance.
  4. Ignition ON, headlamps ON, connect a test lamp between the ignition circuit terminal 6 and ground. The test lamp should turn ON.
  5. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  6. If all circuits test normal, replace the appropriate headlamp assembly. Verify that the customer concern is not still present.
  7. If the customer concern is still present, replace the K26 Headlamp Control Module.
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