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Home >> Chevrolet >> 2012 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Lighting System) >> Diagnostic Information and Procedures >> DTC B096F >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the harness connector at the S38 ignition mode switch.
  2. Test for less than 5 Ω between the ground circuit terminal 4 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the backlight control circuit of S38 ignition mode switch terminal 8 and ground.
  4. Close the drivers door and wait 30 seconds. Open drivers door and verify the test lamp flashes.
    • If the test lamp does not flash, test the control circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the K9 BCM.
    • 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.
  5. If all circuits test normal, replace the S38 ignition mode switch.
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