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Home >> Chevrolet >> 2014 >> Spark LT, Standard Trans >> Repair and Diagnosis (Single Page) >> Body & Frame >> Exterior/Interior Trim >> Bolted Exterior Body Panels And Closures >> Diagnostic Information and Procedures >> DTC B3006: Hood Ajar Circuit >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B55 Hood Ajar Switch. It may take up to 2 minutes for all vehicle systems to power down.
  2. Test for less than 10 Ω between the ground circuit terminal 3 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • If less than 10 Ω 
  3. Ignition ON.
  4. Test for greater than 11.5 V between the signal circuit terminal 1 and ground.
    • If 11.5 V or less 
    1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
    2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If Infinite resistance.
    3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
    • If greater than 11.5 V 
  5. Ignition OFF, disconnect the X4 and X7 harness connector at the K9 Body Control Module. Ignition ON.
  6. Test for less than 1 V between the signal circuit terminal 1 and ground.
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  7. Test or replace the B55 Hood Ajar Switch.
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