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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0121 LF4 To DTC P0685 LF4) >> Diagnostic Information and Procedures >> DTC P018B-P018D: Fuel Pressure Sensor (Chassis Control Module) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine running.
  2. Verify the scan tool Fuel Pressure Sensor Voltage parameter is between 0.2-4.8 V.
    • If not between 0.2-4.8 V 

      Refer to Circuit/System Testing.

    • If between 0.2-4.8 V 
  3. All OK.