38
PTO Interface
PT
O I
n
ter
fac
e
PTO Wiring Diagrams
PTO Switch
OEM ECU
TCM
Ve
h
ic
le
Co
nn
ec
to
r
Bo
d
y
Co
nn
ec
to
r
16
Ai
r
Ta
n
k
Ai
r
S
u
pply
1. Re
qu
est f
r
om PTO Switch
to OEM ECU
3. TCM se
nd
s E
n
gage
message via J1939 to
OEM ECU
4. OEM ECU P
r
op
r
ieta
r
y
E
n
gage sig
n
al to the
Chassis Mo
du
le to act
u
ate
the PTO Ai
r
sole
n
oi
d
5. Co
n
fi
r
m g
r
o
und
sig
n
al
f
r
om ball switch ha
rd
wi
r
e
d
to TCM
PTO
11
12
J1939 PTO I
n
stallatio
n
with Ha
rd
wi
r
e Co
n
fi
r
m
Mo
du
le
2. OEM ECU se
nd
s the
Re
qu
est message via J1939
to the TCM
J 1939 =
Batte
r
y Voltage =
G
r
o
und
=
Switche
d
G
r
o
und
=
Sole
n
oi
d
D
r
ive
r
=
Ai
r
S
u
pply =
J1939 PTO Control with Hardwire Confirm
From
To
Description
Notes
PTO Switch
OEM ECU
PTO Request
Hardwired
OEM ECU
TCM
PTO Request
J1939
TCM
OEM ECU
PTO Engage
J1939
OEM ECU
OEM Module
PTO Engage
J1939
OEM Module
PTO Solenoid
Solenoid PWR
12 Volt
PTO Solenoid
Chassis GND
Solenoid GND
PTO Confirm Switch
TCM B-16
PTO Confirm
5 Volt
PTO Confirm Switch
Chassis GND
PTO Confirm
