That's the right website but the link is to the parts list which isn't much help. Link to the online FSMs is in my sig. It's in the wiring - horn/cigar lighter section. The PDC is the fuse/relay box under the hood.
The accessory relay powers the cigar lighter. The
relay energizes when the ignition switch is in the
ACCESSORY or RUN position. In the ACCESSORY
or RUN position, the switch connects circuit A1 from
fuse 3 in the Power Distribution Center (PDC) to circuit
A31. Circuit A31 powers relay coil. Circuit Z1
provides ground for the relay coil.
When the relay energizes, its connects circuit F30
from fuse 5 in the PDC to circuit F38. Circuit F38
powers the cigar lighter.
When the operator depresses the lighter, contacts
inside the lighter element close, and voltage from
circuit F38 flows through the heating element to
ground. Circuit Z1 provides ground for the lighter.