Navistar Electrical Systems CV
Integration Guide
Page 77 of 84
Revision Date: 9/12/2019
8. Wrap wires with foil tape. Maintain at least 1/2 wrap overlap.
Center Heat Shrink Tube Over Cable
9. Center heat shrink tube over the splice and shrink.
Center Heat Shrink Tube Over Cable
J1939 HIGH SPEED DATA LINK CABLE (SAE J1939/15):
The information in this section applies to all severe and medium vocational series
models.
Performing the proper repairs or modifications of the cable is critical to the integrity and
performance of the vehicle systems. (For repair procedure see Electrical
Troubleshooting Guide - S08250 or Data Link Repair in this manual.) This information
based on SAE J1939/15 and TMC RP 142.
These instructions are intended for modifications that meet the SAE spec; i.e., no
internal resistor. When extending the backbone the proper materials must be used. The
data link cable consists of a twisted pair of insulated wires and are covered by an
insulating jacket. The data link cable must meet the SAE - specified characteristic
impedance of 120-ohms. Never splice regular automotive type wire such as GXL, SXL,
TXL into the data link cable. Use data link cable furnished by Raychem, part number
2021D0309.