33
PTO Interface
Medium- and Heavy-Duty Gen 3 - PTO Inputs and Configurations
Countershaft, Thru-Shaft®, and Split Shaft PTOs
PTO input must be a normally open switch. The switch must close to ground whenever the PTO is activated. This input (active
when pin 18 is shorted to ground) activates the split shaft PTO mode of the t
ransmission. This feature uses pin 18 of the transmission connector.
The transmission default mode for the pin 18 input is for countershaft PTO operation. Countershaft PTO operation is the default
operating mode and no enabling of the countershaft PTO feature is required unless the push button console change to “TECU”
was previously programmed for split shaft PTO operation.
The input signal wire for the PTO must be isolated from other PTO-related circuits. The connector must be compatible with 18
TXL wire.
The ground connection must be isolated from local power device ground returns. Frame rail ground is not recommended.
This specific mode indicator light feature is for the Eaton push button only.
The split shaft PTO is not available on the UltraShift with a DM3 clutch.
J1
18
T
r
a
ns
mi
ss
io
n
ECU Co
nn
ecto
r
(Vehicle I
n
te
r
face)
T
r
a
ns
mi
ss
io
n
ECU Co
nn
ecto
r
(Vehicle I
n
te
r
face)
19
J4
FROM
TO
Description
J1-18
J4
PTO Input
J1-19
J4
Auto Neutral Input (AW3)
