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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 353 (Engine Controls And Fuel - 2.5L (LCV) - DTC P0010 To DTC P0366) >> Diagnostic Information and Procedures >> DTC P0231, P0232, or P023F: Fuel Pump Control >> Component Testing

Component Testing

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.

Static Test

  1. Ignition OFF, disconnect the harness connector at the K111 Fuel Pump Driver Control Module.
  2. Connect a DMM, set on the diode setting, with the positive lead at terminal 16 and the negative lead at terminal 9 of the K111 Fuel Pump Driver Control Module
  3. Test for 0.4-0.8 V between terminal 16 and terminal 9.
    • If not between 0.4-0.8 V 

      Replace the K111 Fuel Pump Driver Control Module.

    • If between 0.4-0.8 V 
  4. Connect a DMM, set on the diode setting, with the positive lead at terminal 9 and the negative lead at terminal 16 of the K111 Fuel Pump Driver Control Module
  5. Test for OL between terminal 9 and terminal 16.
    • If not OL 

      Replace the K111 Fuel Pump Driver Control Module.

    • If OL 
  6. All OK.
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