Purpose And Scope

This Recommended Practice (RP) offers truck body manufacturers and end-users guidelines for truck body wiring design and installation. Successful implementation of this RP will help increase service life, reduce maintenance, and simplify troubleshooting.

This RP standardizes the overall design of the truck body harness. In doing so, it addresses chassis interface, circuit requirements, color code, routing, clipping and other protective measures. This RP applies to dry freight truck bodies mounted on Class 3-7 vehicles. It is not intended to be all-inclusive.

This document is based upon TMC RP 1412, Walk-in Van Electrical System Routing and Load Requirements. Several other TMC and SAE RPs are also cited within this RP and should be reviewed.