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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P040B - P204D)) >> Diagnostic Information And Procedures >> DTC P1176 Or P1177: Fuel Pump Driver Control Module 5V Reference 1-2 Circuit >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON.
  2. Verify scan tool 5V Reference 1-2 Circuit Status parameters do not display Malfunction.
    • If any of the parameters display Malfunction 

      Refer to Circuit/System Testing.

    • Go to next step: If none of the parameters display Malfunction 
  3. 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.
  4. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • Go to next step: If the DTC does not set 
  5. All OK.
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