B350 1 Ton Van V8-5.9L VIN Z (1992)
4.
Remove the terminal from the 4-way blower switch connector cavity 4. See Figure 2 diagram.
5.
Add 1-way insulator to the terminal that was just removed and connect it to the mating insulator on the wiring assembly included in the parts
package.
6.
Insert the bare terminal into the open cavity in the 4-way connector of the blower motor switch.