EMISSION SOLUTION AND CONTROL
AFTERTREATMENT, MACK
Triggers
Aftertreatment
Tampering Indicator
Driver Information
Display Screen
Driving with Active Fault for
+ 4 hrs
SCR system fault.
Repair needed.
5 MPH limit after next
vehicle stop.
1 Refueling Event (> 15 %
fuel level increase) with
stationary brake
2 Vehicle stationary for 1 Hour (vehicle speed <
1.6 Km/h (1 mph)
3 Ignition Key Cycle
SCR system fault.
Veh speed limited to 5 MPH
SCR Sensor Disconnect
SCR Sensor Disconnected Tampering Type
Exhaust Temperature Sensors
Disconnected
Aftertreatment Control Module (ACM)
Disconnected
Aftertreatment NOx Sensor Disconnected
Aftertreatment NOx Sensor Disconnected
DEF Pump Disconnected
DEF Dosing Valve Disconnected
DEF Tank Level Sensor Disconnected
DEF Supply Line to DEF Pump
Disconnected
DEF Return Line Blocked or Plugged
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