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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 327 (Instrument Panel System Displays And Gauges) >> Diagnostic Information and Procedures >> Fuel Gauge Malfunction (FWD) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the fuel level gauge sweeps when performing the scan tool Instrument Cluster Gauge Sweep control function.
    • If the fuel level gauge does not sweep 

      Replace the P16 Instrument Cluster

    • If the fuel level gauge sweeps 
  3. Verify the low fuel level indicator turns ON and OFF when commanding the scan tool All Indicators control function ON and OFF.
    • If the low fuel level indicator does not turn ON and OFF 

      Replace the P16 Instrument Cluster

    • If the low fuel level indicator turns ON and OFF 
  4. Verify the scan tool Fuel Level Sensor parameter is between 0.5-3.5 V and varies with fuel level.
    • If not between 0.5-3.5 V or does not vary with fuel level 

      Refer to Circuit/System Testing

    • If between 0.5-3.5 V and varies with fuel level 
  5. All OK.
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