Always start the diagnosis with the Powertrain On-Board
Diagnostic (OBD) system check. This process will reduce the diagnostic time
and prevent an unnecessary parts replacement. The Secondary Air Injection
(AIR) System diagnosis is covered in the following DTCs:
| • | DTC P0410 -- Secondary Air Injection (AIR) System Constant
Flow Detected |
| • | DTC P0411 -- Secondary Air Injection (AIR) System No Flow
Detected |
| • | DTC P0412 -- Secondary Air Injection (AIR) Cutoff Valve Vacuum
Control solenoid Control Circuit |
