Navistar Electrical Systems CV
Integration Guide
Page 7 of 84
Revision Date: 9/12/2019
Note: The interface connector [X191] is located at the rear of the cab near the RH
frame rail and comes with a cap which is the mating half to the truck harness
connector. This is the connector the Truck Equipment Manufacture (TEM) will use
to wire in external electrical components such as a control relay, oil solenoid [these
two are basic to all systems] and possibly external switches to control the PTO from
outside the cab.
Figures 4.1.1 & 4.1.2: Component Mounting Locations