PRO-S Rev1104
39
Some Older Engine Interface
Engines with 40-pin OEM connector.
If the remote throttle option is not available in the ECM program, a relay needs to
be installed to provide this capability. Wire the relay into the cab foot throttle harness,
connect the PRO-S Engine Control cable, and supply 12 volts to the coil form the
pump interlock circuit. Refer to the wire diagram below.
Figure 14. Caterpillar PRO-S 5 Wiring
(Sheet 4 of 4)
J1587
Datalink (See
Sheet 1)
Engine
Control
(See Sheet 1)
J1587 Datalink
Negative (–)
Note: Supply 12 VDC
when the pump interlock
circuit is engaged.
J1587 Datalink
Positive (+)
White
Wire
Black
Wire
C993-BR
C985-BU
C986-BR
8 VDC
Sensor Common
Ground
Throttle Position Input
PWM
35
37
29
ECM
1
7
Black Wire
Red Wire
40-Pin
Vehicle
Harness
Connector
NC
NO
NC
NO
C
C
A
B
C
P50
J50
Cab Foot
Throttle
Relay
A
C
B
Red
Wire
Black
Wire
White
Wire
IN4006
Diode