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Home >> Chevrolet >> 2015 >> Camaro LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls And Fuel - 6.2L (L99 LS3 LSA) Or 7.0L (LS7) - DTC P0335 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P3400: Cylinder Deactivation System >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.

Static Test

  1. Ignition OFF, disconnect the harness connector at the Q43 Valve Lifter Oil Manifold Assembly.
  2. Connect the harness that is labeled resistance from the Displacement On Demand (DOD) Tester to the Q43 Valve Lifter Oil Manifold Assembly connector.
  3. Connect the power leads from the DOD tester to B+ and ground.
  4. Test for 11-18 Ω on each valve lifter oil manifold solenoid.
    • If not between 11-18 Ω 

      Replace the Q43 Valve Lifter Oil Manifold Assembly.

    • If between 11-18 Ω 
  5. Test for infinite resistance between each valve lifter oil manifold circuit terminal and the valve lifter oil manifold housing.
    • If less than infinite resistance 

      Replace the Q43 Valve Lifter Oil Manifold Assembly.

    • If infinite resistance 
  6. All OK.

Dynamic Test

  1. Ignition OFF, disconnect the harness connector at the Q43 Valve Lifter Oil Manifold Assembly.
  2. Connect the cable that is labeled power from the Displacement On Demand (DOD) Tester to the connector.
  3. Connect the power leads from the DOD tester to B+ and ground.
  4. Command each valve lifter oil manifold solenoid ON and OFF using the DOD tester.
  5. Verify and audible click is heard for each solenoid turn when commanded ON and OFF.
    • If the function does not perform as specified 

      Replace the Q43 Valve Lifter Oil Manifold Assembly.

    • If the function performs as specified 
  6. All OK.
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