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Home >> Chevrolet >> 2011 >> Cruze LS, Automatic >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent System >> Diagnostic Information and Procedures >> Security Indicator Malfunction >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the B10B Ambient Light/Sunload Sensor.
  2. Test for less than 10 Ω between the low reference circuit terminal 6 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit terminal 1 and ground.
  4. Ignition ON, command the security indicator ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
    • If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
    • If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
  5. If all circuits test normal, replace the B10B Ambient Light/Sunload Sensor.
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