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Home >> Chevrolet >> 2022 >> Camaro LS, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Engine Controls And Fuel - 6.2L (LT1/LT4) - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P3400, P3401, P3403, P3404, P3425, P3427, P3428, P3441, P3443, P3444, P3449, P3451, or P3452 >> Circuit/System Verification

Circuit/System Verification

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

    The engine oil level and the oil pressure are critical to the correct operation of the system.

  1. Ignition - On/Vehicle - In Service Mode
  2. Verify DTC P3400 is not set.
    • If the DTC is set 
    1. Ignition/Vehicle - Off
    2. Verify a condition does not exist with the component: Q43 Valve Lifter Oil Manifold Assembly - Screen = Restricted
    • Go to next step: If the DTC is not set 
  3. Ignition - On/Vehicle - In Service Mode
  4. Verify the scan tool parameter:
    • Cylinder 1, 4, 6, 7 Deactivation Solenoid Valve Control Circuit High Voltage Test Status = Not Run or OK
    • Cylinder 1, 4, 6, 7 Deactivation Solenoid Valve Control Circuit Low Voltage Test Status = Not Run or OK
    • Cylinder 1, 4, 6, 7 Deactivation Solenoid Valve Control Circuit Open Test Status = Not Run or OK
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  5. Verify the scan tool parameter:
    • Cylinder 1, 4, 6, 7 Deactivation Solenoid Valve Control Circuit High Voltage Test Status = Not Run or OK
    • Cylinder 1, 4, 6, 7 Deactivation Solenoid Valve Control Circuit Low Voltage Test Status = Not Run or OK
    • Cylinder 1, 4, 6, 7 Deactivation Solenoid Valve Control Circuit Open Test Status = Not Run or OK
    • Perform the action while monitoring the parameter:
    • Wiggle the harness and connector: Q43 Valve Lifter Oil Manifold Assembly
    • Wiggle the harness and connector: K20 Engine Control Module
    • If not the specified state 

      Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)

    • Go to next step: If the specified state 
  6. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to: Circuit/System Testing

    • Go to next step: If the DTC is not set 
  7. All OK.
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