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Home >> Chevrolet >> 2020 >> Impala LT >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Bolted Exterior Body Panels And Closures >> Diagnostic Information and Procedures >> DTC P257D-P257F >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Hybrid Powertrain Control Module Hood Position parameter is Open when the hood is open and Closed when the hood is closed.
    • If the parameter does not change 

      Refer to Circuit/System Testing.

    • Go to next step: If the parameter changes 
  3. All OK.
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