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Air Injection: Testing and Inspection



Secondary Air Injection (AIR) system, checking for proper seal

Function test
- Select the measuring value "Test-ID 03:
Secondary Air Injection (AIR) system" and check whether the specified values are being reached, Diagnostic mode 6: Check test results of components that are not continuously monitored. Diagnostic Mode 6: Check Test Of Parts Not Constantly Monitored
- Check specified values at idle.






- End diagnosis and switch ignition off.

If the specified values are not reached:

Checking Proper Seal
- Check the connecting lines and hoses between Secondary Air Injection (AIR) Pump Motor and combination valves for proper seal, Parts of the Secondary Air Injection (AIR) system, removing and installing.
- Repeat function test.
- Check hoses and hose connections for secure seating.
- Repeat function test.

If malfunction is no longer present:
- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes