Preconditions for the test:
Engine idling.
No faults stored.
Engine temperature above 80 °C.
All electrical loads switched off.
Automatic gearbox set to ”P/N”.
Note:
To check the ignition timing signal.
Procedure:
Choose the ignition timing signal function.
During basic setting, idling stabilisation is disabled and a fixed ignition point of 12° before TDC is obtained.