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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information And Procedures >> DTC P0461-P0464: Fuel Level Sensor (FWD With Gasoline Engine) >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On / Vehicle - In Service Mode
  2. Verify the scan tool parameter: Fuel Level Sensor = 0.5 to 3.V and changes & Varies with changes in fuel level.
    • If not between 0.5 and 3.5 V or does not change 

      Refer to Circuit/System Testing.

    • Go to next step: If between 0.5 and 3.5 V and changes 
  3. Perform the scan tool control function:Fuel Gauge Sweep

    Verify the component activates: Fuel Gauge

    • If the component does not activate 

      Test or replace the component: P16 Instrument Cluster

    • Go to next step: If the component activates 
  4. All OK.