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Home >> Chevrolet >> 2024 >> Traverse LS, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0521, P0522, or P0523 >> Circuit / System Verification

Circuit / System Verification

  1. Verify correct engine oil level and condition.
  2. Ignition ON / Vehicle in Service Mode.
  3. Verify the scan tool Engine Oil Pressure parameter is 0 psi (0 kPa).
    • If not 0 psi (0 kPa) 

      Refer to Circuit / System Testing.

    • Go to next step: If 0 psi (0 kPa) 
  4. Engine running.
  5. Verify actual engine oil pressure is within specified range. Refer to Oil Pressure Diagnosis and Testing in Displays and Gauges Component Replacement Reference .
  6. Verify the scan tool Engine Oil Pressure parameter is within specified range.
    • If not within specified range 

      Refer to Circuit / System Testing.

    • Go to next step: If within specified range 
  7. Verify the engine oil pressure displayed on the driver information display is within specified range.
    • If not within specified range 

      Test or replace the A11 Radio.

    • Go to next step: If within specified range 
  8. All OK.
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