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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Controls And Fuel - 3.6L (LFX) - DTC P0010 To DTC P0346) >> Diagnostic Information and Procedures >> DTC P0090-P0092, P00C8, P00C9, or P00CA: Fuel Pressure Regulator Control Circuit/Fuel Pressure Regulator High Control Circuit >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.

Static Test

  1. Ignition OFF, disconnect the harness connector at the G18 High Pressure Fuel Pump.
  2. NOTE:

    The DMM and test leads must be calibrated to 0 Ω in order to prevent misdiagnosis.

  3. Test for 9-11 Ω at 25°C (77°F) of resistance between low control circuit terminal 1 and high control circuit terminal 2.
    • If not within the specified range 

      Replace the G18 High Pressure Fuel Pump.

    • If within the specified range 
  4. Test for infinite resistance between each terminal and the High Pressure Fuel Pump housing/case.
    • If less than infinite resistance 

      Replace the G18 High Pressure Fuel Pump.

    • If infinite resistance 
  5. All OK.