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Home >> Saab >> 2010 >> 9-5 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Management And Fuel System, V6 (2 Of 5) >> DTC P0411: Secondary Air Injection System Incorrect Air Flow Detected >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the KR25 secondary air injection pump relay.
  2. Test for 70-110 Ω between terminals 85 and 86.
  3. If the resistance is not within the specified range, replace the KR25 secondary air injection pump relay.
  4. Test for infinite resistance between the following terminals:
    • 86 and 87
    • 86 and 30
    • 85 and 87
    • 87 and 30
  5. If not the specified value, replace the KR25 secondary air injection pump relay.
  6. Install a 20 A fused jumper wire between relay terminal 86 and 12 V. Install a jumper wire between relay terminal 85 and ground. Test for less than 2 Ω between terminals 87 and 30.
  7. If greater than the specified range, replace the KR25 secondary air injection pump relay.
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