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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Controls And Fuel - 2.4L - DTC P0628 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2444: Secondary Air Injection System Pump Stuck On >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition On
  2. Verify that DTC P0412, P0418, P041F, P044F, P2257, P2258, P2432 or P2433 is not set.
    • If none of the DTCs are set. 
    3. NOTE:

    To prevent the secondary air injection pump from overheating, do not operate the pump consecutively for greater than 2 minutes. The pump is provided with a thermal protector that will automatically reset when allowed to cool.

  3. Verify the G21 Secondary Air Injection Pump turns On and Off when commanding the Secondary Air Injection Pump Relay On and Off with a scan tool.
    • If the pump does not turn On and Off 

      Refer to Circuit/System Testing

    • If the pump turns On and Off 
  4. 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.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing

    • If the DTC does not set 
  6. All OK
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