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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 2.0L (LSY) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P003C, P003D, P005A, P037C, P03EF, P03F0, P03F4, P2B4F, P2B51, P2B53, P3083, P3084, P3088, P3089, P308D, P308E, P3092, P3093, P3097, P3098, or P309C >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify there are no related DTCs set in the following system:
    • 5 V Reference Circuit
    • B23 Camshaft Position Sensor
    • B26 Crankshaft Position Sensor
    • M129 Intake Camshaft Profile Actuator - Circuit
    • M130 Exhaust Camshaft Profile Actuator - Circuit
    • Go to next step: If a related DTC is not set 
  3. Engine - Running - Cold Start-Up
  4. Verify the scan tool parameter:
    • Exhaust Camshaft Profile Actuator Position Sensor 1 = 84 to 85%
    • Exhaust Camshaft Profile Actuator Position Sensor 2 = 84 to 85%
    • Intake Camshaft Profile Actuator Position Sensor 1-4 = 84 to 85%
    • {P037C} Camshaft Profile Actuator System Commanded State = Commanded state does not match the actual state
    • If not in the specified range 

      Replace the appropriate component:

    • M129 Intake Camshaft Profile Actuator
    • M130 Exhaust Camshaft Profile Actuator
    • Go to next step: If in the specified range 
  5. 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 

      Replace the appropriate component:

    • M129 Intake Camshaft Profile Actuator
    • M130 Exhaust Camshaft Profile Actuator
    • Go to next step: If the DTC is not set 
  6. All OK.