Fault code: 20489 SCANIA

Error identification:

Calibration of the mass flow sensor is switched off.

Cause:

The fault code occurs because fault codes have been generated in the EGR system during the current driving cycle, i.e. since the power was switched on using the key, with the result that the calibration has been switched off.

Notes:

Calibration of the mass flow sensor is switched off. The fault code is active until the power is switched off with the key.

Action:

Check other active and inactive fault codes in the EGR system. Switch the ignition off and on with the starter key.