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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 B2645: Ambient Light Sensor Circuit >> Component Testing >> Dynamic Test

Dynamic Test

  1. Ignition ON, observe the scan tool Ambient Light Sensor parameter. The reading should be between 1.4-4.5 V and change with ambient light changes.
  2. Test the B10B Ambient Light/Sunload Sensor by varying the ambient light while monitoring the sensors voltage output.
  3. Verify that the voltage output is within the range of the specification.
  4. If not within the specified range, replace the B10B Ambient Light/Sunload Sensor.
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