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Eaton Top 2 Override with Cruise Switch
OEM
Description:
The Eaton Top 2 Override with Cruise Switch parameter
is programmed as either Yes or No. When programmed
to Yes, this parameter disables the top 2 mode when
the cruise switch is OFF and the transmission is not yet
in the top 2 gears. When the cruise switch is in the ON
position, the top 2 mode is enabled. If the cruise switch
is in the OFF position while in one of the top 2 gears, the
ECM will go into a hold mode where the transmission
will not be shifted from the currently selected gear.
Available:
C-10, C-12, C-15, C-16, C11, C13, C15 heavy duty engines
Range:
Engine Range Cat Default
C-10, C-12, C-15, C-16, C11,
C13, C15
Yes
No
No
Note: This feature is unavailable when the Transmission Style
parameter is not programmed to Eaton Top 2.
Advantages:
The Eaton Top 2 Override with Cruise Switch parameter
gives the operator more control over the transmission
shifting in vehicles which are equipped with Eaton Top 2
transmissions.
Disadvantages:
Extra consideration should be made when cresting a
hill to avoid the top 2 feature from downshifting prior to
cresting a hill. See recommendations below for further
details.
Recommendations:
✔ The hold mode mentioned above is typically used
when cresting the top of a hill. Good driving habits
suggest lugging the engine back up to 200 rpm
below peak torque in the current gear if cresting a
hill is possible within a short period of time.
In order to do this, the operator must override the
automatic top 2 shifting to hold the transmission
in top gear. If not, the top 2 feature will perform a
downshift prior to cresting the top of the hill.
Engine/Gear Parameters