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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 403 (Engine Controls And Fuel - 3.0L (LGY) - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P25CA-P25CF >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    Verify the engine has the correct oil level and the correct oil pressure before continuing with this diagnostic.

  1. Engine - Running@1, 000 to 1, 500 RPM
  2. Verify the scan tool parameter:
    • Intake/Single Camshaft Position Actuator Locating Pin Control Valve Control Circuit High Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Locating Pin Control Valve Control Circuit Low Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Locating Pin Control Valve Control Circuit Open Test Status = Not Run or Okay
    • Intake Camshaft Position Actuator Locating Pin Control Valve Control Circuit High Test Status Bank 2 = Not Run or Okay
    • Intake Camshaft Position Actuator Locating Pin Control Valve Control Circuit Low Test Status Bank 2 = Not Run or Okay
    • Intake Camshaft Position Actuator Locating Pin Control Valve Control Circuit Open Test Status Bank 2 = Not Run or Okay
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  3. Verify the scan tool parameter:
    • Intake/Single Camshaft Position Actuator Locating Pin Control Valve Control Circuit High Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Locating Pin Control Valve Control Circuit Low Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Locating Pin Control Valve Control Circuit Open Test Status = Not Run or Okay
    • Intake Camshaft Position Actuator Locating Pin Control Valve Control Circuit High Test Status Bank 2 = Not Run or Okay
    • Intake Camshaft Position Actuator Locating Pin Control Valve Control Circuit Low Test Status Bank 2 = Not Run or Okay
    • Intake Camshaft Position Actuator Locating Pin Control Valve Control Circuit Open Test Status Bank 2 = Not Run or Okay
    • Perform the action while monitoring the parameter:
    • Wiggle the harness and connector: Q84 Camshaft Position Actuator Park Lock Solenoid Valve
    • 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 
  4. 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 
  5. All OK.
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