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Home >> Saab >> 2011 >> 9-5 Turbo6 >> Repair and Diagnosis >> Electrical >> Horns >> Lighting And Signaling Systems >> Fault diagnosis, symptoms >> Park, License, and/or Tail Lamps Malfunction >> Circuit/System Testing >> Park Lamp Switch Malfunction

Park Lamp Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the S30 Headlamp Switch.
  2. Verify that a test lamp illuminates between the ground circuit terminal 6 and B+.
  3. If the test lamp does not illuminate, test the ground circuit for an open circuit/high resistance.
  4. Ignition ON, test for B+ between the park lamp signal circuit terminal 3 and ground.
  5. If less than the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
  6. Install a 3 A fused jumper wire between the park lamp ON signal circuit terminal 3 and ground. Verify the scan tool Parklamp Switch parameter changes from Inactive to Active.
  7. If always Inactive, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
  8. If always active, test the signal circuit for a short to ground. If the circuit tests normal, replace the K9 Body Control Module.
  9. If all circuits test normal, replace the S30 Headlamp Switch.
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