CONE 6K8074 - Caterpillar

Caterpillar recommends a dedicated bus bar for all engine ECM connected electronics. This connection ensures that the ECM and all components, including switches, sensors and electronic display modules have a common reference point.All -Battery connections should begin at the -Battery Bus Bar and terminate at the -Battery connection on the component being wired. The connection from the -Battery Bus Bar to the bridge displays should be made with a minimum of 12 AWG wire. There should NOT be any other components connect to the Caterpillar -Battery Bus Bar.
Figure 1.1 Operator Station Battery Grounding Ground connections made in manner shown in figure 1.1 ensures that all components in the system have the -Battery Bus Bar as a common reference point at the engine room. Properly grounded systems are a MUST to provide reliable operation.