TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
POWERTRAIN - CONTINUED
Table 4. J2 Connector (Powertrain ECM) - Continued.
No.
Function
Type
53
Parking Brake Switch (Disengaged)
Switch Input
58
Park Brake Switch (N/O)
59
Park Brake Switch (N/C)
60
Secondary Steering Pressure Switch (N/O)
Switch Input
61
Secondary Steering Pressure Switch (N/C)
Switch Input
67
CAN A +
Power
68
CAN A -
Ground
(1)
All other pins not listed are also unused.
e.
Switches. Switches can provide three types of switch inputs to powertrain ECM: an open signal, a ground signal,
and a +battery signal. Switches are open or closed. When a switch is open, no signal is provided to corresponding
powertrain ECM input. When a switch is closed, a ground or +battery signal is provided to corresponding power-
train ECM input.
(1)
Rocker Switch (Ride Control).
(a) Ride control switch informs powertrain ECM of selected ride control mode. There are three ride con-
trol modes: AUTO, ON, and OFF.
(b) Ride control switch has two powertrain ECM input connections at connector J2: input 1 at contact 46
and input 2 at contact 45. When operator selects AUTO, input 1 is closed to ground and input 2 is
open. When ON is selected, input 1 is open and input 2 is closed to ground. When OFF is selected,
inputs 1 and 2 are closed to ground.
(2)
Rocker Switch (Secondary Steering Test Switch).
(a) Secondary steering test switch informs powertrain ECM that operator wishes to test secondary steer-
ing system. Switch is spring loaded and will return to OFF position when released by operator.
(b) Secondary steering test switch has one input connection to powertrain ECM at connector J2 at contact
36. When operator presses switch, input to powertrain ECM connection J2-36 is closed. When switch
is released, input to powertrain ECM connection J2-36 is open.
0003 00-35
