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Range:
Engine Range
Cat
Default
3126E, C7, C9 Yes, No Yes
C-10, C-12, C-15,
C-16, C11, C13,
C15, EPA’07 and
newer C7 & C9
Yes,
No,
Outside Temp. Based,
J1587 Outside Temp. Based
Yes
EPA’07
and newer
C13 & C15
No, Outside Temperature Based
J1587 Outside Temperature Based
J1939 Body Controller
J1939 Cab Controller
J1939 Instrument Cluster
J1939 Cab Display
Engine Inlet Air Temperature Sensor
Yes
Advantages:
By programming the Allow Idle Shutdown Override
parameter to No, it is guaranteed that the truck will
shutdown at the programmed time. This can increase
fuel economy and decrease engine wear.
The Outside Temperature Based setting allows the
fl exibility of a defi ned temperature range where the
engine will always shutdown along with temperature
ranges where the driver can override the shutdown,
allowing the use of air conditioning or heating.
Disadvantages:
None
Recommendations:
✔ Caterpillar recommends setting this parameter to
No for most applications when the driver is not
required to sleep in the truck.
✔ Caterpillar recommends the installation of the
optional temperature sensor and setting this
parameter to Outside Temperature Based for
applications when the driver is required to sleep in
the truck. Refer to Special Instruction SEHS9920 for
installation details.
Timer Parameters