PTO Switch
OEM ECU
TCM
Vehicle
Connector
Body
Connector
Air Tank
Air
Supply
1. Request from PTO Switch
to OEM ECU
3. TCM sends Engage
message via J1939 to
OEM ECU
4. OEM ECU Proprietary
Engage signal to the
Chassis Module to actuate
the PTO Air solenoid
PTO
1112
J1939 PTO Installation
Module
2. OEM ECU sends the
Request message via J1939
to the TCM
J 1939 =
Battery Voltage =
Ground =
Switched Ground =
Solenoid Driver =
Air Supply =
6. J1939 Confirm
message from
OEM ECU to TCM
to operate PTO
5. PTO Confirm to
OEM ECU
J1939 PTO Control
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 OEM ECU PTO Confirm 5 Volt
PTO Confirm Switch Chassis GND PTO Confirm
39
PTO Interface
To Next Page
Loading...
Need help?
General
