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Home >> Hummer >> 2008 >> H3 Alpha >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gages >> Diagnostic Information and Procedures >> DTC P0521, P0522, or P0523 >> Circuit/System Verification

Circuit/System Verification

  1. Engine running, observe the scan tool Engine Oil Pressure Sensor parameter. The reading should be between 41-448 kPa (6-65 psi).
  2. Verify the engine oil pressure, refer to Oil Pressure Diagnosis and Testing .
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