Test condition:
Ignition on.
No faults stored.
Battery voltage above 11.5 V.
All electrical loads switched off
Engine temperature above 80 °C.
Note:
To check the EGR system.
Procedure:
Choose the function: EGR system.
Revs up five times to max engine speed.
The value in the diagnostic status field must change from "Test off" to "Test on".
Let the engine idle until the value changes to "System OK! / System not OK!".
If the specifications are not attained, interrogate fault memory.
Exit function.