Test of warm-up valve
This function is used to open and close the warm-up valve for the AdBlue tank to check any electric problems in the valve.
Test conditions:
Parking brake applied.
Engine running.
Ignition on.
Gear selector in neutral.
Battery voltage above 20V.
Procedure:
Start the function.
Activate the valve.
Listen for an audible click from the tank warm-up valve.
Observe that the AdBlue tank temperature increases.
The function is done.
If the function fails, check the test conditions and repair any faults.