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Home >> Saab >> 2011 >> 9-5 Turbo6 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting And Signaling Systems >> Fault diagnosis, fault codes >> DTC B3596: Hazard Lamps Request Circuit Malfunction >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
  2. Test for less than 5 Ω between the S48D Multifunction Switch 2 - Instrument Panel harness connector ground circuit terminal 1 and ground.
  3. If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the S48D Multifunction Switch 2 - Instrument Panel.
  4. Connect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
  5. Disconnect the X2 harness connector at the K9 Body Control Module.
  6. Test for less than 0.3 V at the K9 Body Control Module signal circuit harness terminal 26 X2 and ground.
  7. If greater than the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the S48D Multifunction Switch 2 - Instrument Panel.
  8. Test for infinite resistance between the K9 Body Control Module signal circuit harness terminal 26 X2 and ground.
  9. If less than the specified value, test the signal circuit for a short to ground. If the circuit tests normal, replace the S48D Multifunction Switch 2 - Instrument Panel.
  10. Press and hold the S48D Multifunction Switch 2 - Instrument Panel, test for less than 5 Ω of resistance between the K9 Body Control Module signal circuit harness terminal 26 X2 and ground.
  11. If not within the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the S48D Multifunction Switch 2 - Instrument Panel.
  12. If all circuits test normal, replace the K9 Body Control Module.
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