Freightliner pto switch. See Fig. The SmartPlexTM Electrical System is controlled by Freightliner’s proprietary control modules that relay data, sending and PTO Pressure Switch 577. This is an Eaton brand PTO Locate the pressure switch as seen here. Thankfully, the wiring diagram for this truck is relatively straightforward. The PTO switch signal typically originates from the body controller or transmission control module. A Freightliner M2 PTO wiring diagram provides a detailed illustration of the electrical connections between the PTO switch, PTO solenoid, PTO relay, and other relevant components. 5 07-12-2023, 04:33 PM (07-09-2023, 06:29 PM)Brookhaven66 Wrote: Hi: We’ll we purchased used cascadia and was told by freightliner after buying pto (kit) that if original wiring harness didn’t have connectors at or near trans or pto switch wiring behind dash panel then we couldn’t properly install pto on the auto dt12 trans. See documentation above for details. Freightliner AOE Switch- Normally Closed- replaces FSC 1749-2134 577. Smart switches are low-current switches that communicate with the Bulkhead Module, signaling their status. pscxhmf oisih ob jfwg ufo tzkhq zomxtd dro3u zq7i 7wj