Preconditions for the test:
Engine idling.
No faults stored.
No leaks in the exhaust system.
Engine temperature above 80 °C.
All electrical loads switched off.
Automatic gearbox set to ”P/N”.
Pressure gauge not connected.
Note:
Used to check idling speed.
The idling speed is not adjustable.
During the idling check, the AC compressor is switched off and the carbon canister valve is closed.
Procedure:
Choose the idling check function.
Compare the actual speed signal (actual value) with the specified speed signal (target value). Required values: speed signal 670-770 rpm.