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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 3.6L (LFX) - DTC P0351 To P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0451-P0454: Fuel Tank Pressure Sensor >> Circuit/System Verification

Circuit/System Verification

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  1. Remove the fuel cap or install GE 41415-60 for capless fuel fill vehicles.
  2. Ignition ON, engine OFF.
  3. Verify the scan tool Fuel Tank Pressure Sensor parameter is between 1.3 and 1.7 V.
    • If not between 1.3-1.7 V 

      Refer to Circuit/System Testing

    • If between 1.3-1.7 V 
  4. All OK.