
Page 207
Output Selection
Engine Running Output
Description:
The Engine Running Output is used to allow the ECM
to drive a solenoid or relay to prevent the starter from
being engaged while the engine is running. The Engine
Running Output enables when the engine speed reaches
50 rpm below the programmed Low Idle rpm, and then
disables when the engine speed falls 100 rpm below the
programmed Low Idle rpm.
Available:
All on-highway engines covered in this handbook (not
available to all OEMs)
Range:
Engine Range Default
3126E, C7, C9 J1/P1:31 None
C-10, C-12, C-15,
C-16, C11, C13, C15
J1/P1:10, J1/P1:12, J1/P1:13 None
EPA’07 C7, C9, C13,
C15
J1/P1: 10, 11,
12, 13, 19, 20
High Side Driver
(2 Amp Output)
None
J1/P1: 29,
30, 31
Low Side Driver
(Sensor Common)
Note: The Engine Running Output is part of the
Caterpillar Multi I/O System. Both High Side (2 Amp
Output) or Low Side (Sensor Common) Drivers can be
programmed. Failure to properly program the Engine
Running Output could cause undesired operation or
damage to chassis components.
Advantages:
Programming this parameter prevents unnecessary
wear on the starter.