The truck is equipped with a cartridge fuse in the Power Distribution Center (PDC) to protect the electrical system from excessive output from the alternator resulting from a defective alternator or regulator circuits. This fuse is rated at 120 amps on 97 RAM trucks and 140 amps on the other models.
This fuse has a color-coded plastic housing and a clear plastic fuse conductor inspection cover. It is secured with screws across the two B+ terminal stud connection bus bars.
If this fuse fails, a thorough inspection of the charging system must be carried out before replacement.
REMOVAL & INSTALLATION
- Disconnect the battery negative cable(s).
- Remove the PDC cover.
- Remove the two screws which secure the cartridge fuse to the B+ terminal stud bus bars.
- Remove the fuse.
- Installation is the reverse of removal. Tighten the two fuse screws to 30 inch lbs. (3.4 Nm). Proper torque is important.