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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B3006 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2010 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the B55 Hood Ajar Switch.
  2. Ignition OFF, test for less than 8 Ω between the ground circuit terminal C and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, test for greater than 11 V between the signal circuit terminal B and ground.
    • If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the K9 Body Control Module (BCM).
  4. Disconnect the X4 harness connector at the BCM.
  5. Test for less than 1 V between the signal circuit terminal 24 and ground.
    • If greater than the specified range, test the signal circuit for a short to voltage.
  6. If all circuits test normal, test or replace the B55 Hood Ajar Switch.
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