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Aftertreatment DEF Quality - Driver W arning & Inducement
from Mack Truck Electronic V-MAC IV Vehicle Management & Control with Co-Pilot Display Operator's Manual
Note : Once this DEF Quality fault occurs the DID timer
The timer displays the minutes available before the 5 mph derate occurs.
The timer can cleared using the Escape (ESC) button the stalk switch control lever . When the vehicle restarted after shutdown the remaining minutes before derate occurs will reappear . For additional DID information refer the Driver Information Display
Exit conditions for DEF Quality Km/h mph) r oad speed limit" Inducement:
Next 1 Engine Starts: Return 25% torque reduction until there a proper DEF quality evaluation. poor DEF quality detected during the next monitoring cycle then 8 Km/h mph) resumed after the vehicle stationary for minutes. After one engine start has been exhausted then a T ech T ool required exit the 8 Km/h mph) road speed limit.
W ith T ech T ool DTC Clearing: Invoke 25% torque reduction until there a proper DEF quality evaluation. poor DEF Quality detected during the next monitoring cycle then 8 Km/h mph) resumed after the vehicle stationary for minutes.
