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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 1.8L (LUW, LWE) - DTC P0443 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2430 or P2431: Secondary Air Injection System Pressure Sensor >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON
    NOTE: Verify the battery is fully charged before proceeding with this diagnostic procedure. The secondary air injection pump output will vary with system voltage.
  2. Verify that DTC P0412, P0418, P2432, P2433, P2440 or P2444 is not set.
    • If none of the DTCs are set. 
  3. Verify the scan tool BARO pressure parameter is within the range specified in the Altitude Versus Barometric Pressure table.
    • If within the specified range 
  4. Verify the scan tool Secondary Air Injection Pressure Sensor and the BARO pressure parameters are within 3 kPa (0.4 psi).
    • If not within the specified range 

      Replace the Q29 Secondary Air Injection Solenoid Valve

    • If within the specified range 
  5. Verify the G21 Secondary Air Injection Pump turns ON and OFF when commanding the Secondary Air Injection Pump Relay between ON and OFF with a scan tool.
    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.
    • If the pump does not turn ON and OFF 

      Refer to Circuit/System Testing-Secondary Air Injection Pump Malfunction

    • If the pump turns ON and OFF 
  6. Engine running
  7. Verify the scan tool Secondary Air Injection Pressure Sensor parameter increases between 14-25 kPa (2.0-3.6 psi) when the Secondary Air Injection Pump Relay is commanded ON with a scan tool.
    • If not within the specified range 

      Refer to Circuit/System Testing-Secondary Air Injection System Pressure Not In Range.

    • If within the specified range 
  8. Verify the scan tool Secondary Air Injection Pressure Sensor parameter increases between 5-13 kPa (0.7-1.9 psi) when the Secondary Air Injection System is commanded Active with a scan tool.
    • If not within the specified range 

      Refer to Circuit/System Testing-Secondary Air Injection System Pressure Not In Range.

    • If within the specified range 
  9. 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.
  10. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing

    • If the DTC does not set 
  11. All OK
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