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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 1 (FWD With Diesel Engine) >> Component Testing

Component Testing

  1. Ignition OFF, remove the Primary Fuel Level Sender.
  2. Sweep the Fuel Level Sensor through its full range of motion while measuring resistance between the signal terminal 5 and the low reference terminal 6.
  3. Test for a minimum resistance value of 37-43 Ω and a maximum value of 245-255 Ω without any spikes or dropouts.
    • If minimum resistance is not 37-43 Ω, maximum resistance is not 245-255 Ω, or if there are any spikes or dropouts 

      Replace the Fuel Level Sensor.

    • Go to next step: If minimum resistance is 37-43 Ω, maximum resistance is 245-255 Ω, and if there are no spikes or dropouts 
  4. All OK.
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