LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2017 >> Terrain SL, Gas >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls And Fuel - 2.4L (Lea) - DTC P0340 To DTC P2635 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P12A6: Fuel Pump Driver Control Module Enable Circuit Performance >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

  1. Ignition ON.
  2. Verify that DTC P12A6 is not set.
    • If the DTC is set 

      Refer to Circuit/System Testing

    • If the DTC is not set 
  3. Command the Fuel Pump Enable ON and OFF with a scan tool.
  4. Verify the following scan tool control circuit status parameters display OK:
    • Fuel Pump Enable Circuit Low Voltage Test Status
    • Fuel Pump Enable Circuit Open Test Status
    • Fuel Pump Enable Circuit High Voltage Test Status
    • If Malfunction is displayed 

      Refer to Circuit/System Testing

    • If OK is displayed 
  5. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing

    • If the DTC does not set 
  7. All OK.
scientia non olet · About LEMON Manuals