Preconditions for the test:
Engine idling.
No faults stored.
Engine temperature 5 to 95 °C.
All electrical loads switched off.
Gear selector set to P/N.
Induction air temperature below 60 °C.
Note:
For diagnosis of the secondary air system.
This diagnosis is initiated only when the lambda probes have been tested and are OK.
Procedure:
Choose the function: Secondary air system.
The diagnostic status field will change from ”Test off” to ”Test on”.
Let the engine idle until the tank ventilation system changes from ”Test on” to ”Syst OK!”. / Syst not OK!”.