Power Distribution Center: Operation

All of the current from the battery/generator cable connection enters the PDC through a 140 ampere fusible link that is secured just inside the front end of the PDC housing. The PDC houses up to nine maxi-fuse cartridges, which replace all in-line fusible links. The PDC also houses up to ten blade-type fuses, up to four full International Standards Organization (ISO) relays, and up to eight ISO micro-relays. Internal connection of all the PDC circuits is accomplished by an intricate network of hard wiring and bus bars. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.

The fuse cartridges, fuses, circuit breakers, and relays are available for service replacement. The PDC unit cannot be repaired and is only serviced as a unit with the engine compartment wire harness. If the PDC is faulty or damaged, the engine compartment wire harness assembly must be replaced.