Mack Truck Electronic V-MAC IV Vehicle Management & Control with Co-Pilot Display Operator’s Manual

54 V-MAC Co-Pilot Operator’s Manual Idle Shutdown This feature will shut off the engine after it has been idle for a specified period. The time period is customer programmable using the VCADS software. An alarm will warn 30 seconds (a programmable time frame) before the engine will shut down. The idle shutdown override switch can be used during this 30 second period to override idle shutdown or the service brake or accelerator pedal (AP) can be applied. Once the engine shuts down, the engine can be re-started by turning the ignition key to the Start position.

If Idle Shutdown with sleeper mode is enabled, the shutdown can be cancelled if the idle shutdown override switch, service brakes, or AP are pressed while the Shutdown Indicator is on. Idle shutdown will be active again after the vehicle has been moved and parked. Some options only allow sleeper mode if the ambient air temperature (AAT) requires heating or air conditioning. If the ambient temperatures are out of range, the amber electronic malfunction indicator will illuminate and the idle shutdown function can be overridden. If AAT is within range, idle shutdown remains active and the red shutdown indicator will illuminate as a warning (refer to the VCADS User’s Guide for more information about possible idle shutdown settings).

Note: Idle shutdown will not occur during an aftertreatment diesel particulate filter (DPF) regeneration. If the idle shutdown timer requests a shutdown during aftertreatment diesel particulate filter (DPF) regeneration, the engine will not shut down until after regeneration has been completed.

Note: The California Air Resources Board (CARB) requires 2010 model year vehicles to be equipped with engines having tamper-resistant software which limits the time that the engine can idle at speeds above low idle (550–700 RPM). At speeds above low idle, and with a power takeoff (PTO) engaged, idle time will be limited to 5 minutes, after which the engine will revert back to low idle. Vehicles equipped with a Clean Idle engine are identified by a label which is affixed to the left front corner of the hood on conventional models (CXU, CHU and GU), and the lower portion of the driver’s side door on cab-over models (MRU and LEU). Please refer to the Emission Control Systems for MACK Class 8 Diesel Engines (MACK MP7 and MP8 Engines) manual for more information.