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Home >> Chevrolet >> 2021 >> Trailblazer L >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gauges >> Diagnostic Information and Procedures >> DTC P250A >> Circuit/System Verification

Circuit/System Verification

  1. Verify the fluid level. Engine Oil
    • If not the specified state 

      Fill the engine oil to the proper level with NEW engine oil.

    • Go to next step: If the specified state 
  2. Ignition - On / Vehicle - In Service Mode
  3. Verify the scan tool parameter: Engine Oil Level = OK
    • If not the specified state 

      Refer to Circuit/System Testing

    • Go to next step: If the specified state 
  4. All OK.
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