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Home >> Buick >> 2015 >> Verano Premium, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 2.4L (Lea) - Dc P0010 To DTC P0328) >> Diagnostic Information and Procedures >> DTC P0201-P0204, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P1248, P1249, P124A, P124B, P2147, P2148, P2150, P2151, P2153, P2154, P2156, or P2157: Cylinder Injector Control Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON.
  2. Verify DTC P0685 or P1682 is not set.
    • If none of the DTCs are set 
  3. NOTE:

    The engine must be running for the scan tool Cylinder 1-4 Injector Control Circuit Status parameters to function.

  4. Engine idling.
  5. Verify with a scan tool the parameters listed below do not increment.
    • Cylinder 1 Current Misfire Counter
    • Cylinder 2 Current Misfire Counter
    • Cylinder 3 Current Misfire Counter
    • Cylinder 4 Current Misfire Counter
    • If a parameter increments 

      Refer to Circuit/System Testing.

    • If a parameter does not increment 
  6. Verify with a scan tool the parameters listed below display OK or Not Run.
    • Cylinder 1 Injector Control Circuit Status
    • Cylinder 2 Injector Control Circuit Status
    • Cylinder 3 Injector Control Circuit Status
    • Cylinder 4 Injector Control Circuit Status
    • If OK or Not Run is not displayed 

      Refer to Circuit/System Testing.

    • If OK or Not Run is displayed 
  7. 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.
  8. Verify the DTC does not set
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  9. All OK.