Wrangler 4WD L4-150 2.5L VIN P MFI (1998)
Heated Glass Element Switch: Description and Operation
SYSTEM OPERATION
The rear window defogger switch is mounted in the accessory switch bezel, which is located in the lower instrument panel center bezel, next to the
ash receiver. The momentary-type switch provides a hard-wired ground signal to the instrument cluster each time it is depressed. The instrument
cluster rear window defogger timer and logic circuitry responds by energizing or de-energizing the rear window defogger relay
Energizing the rear window defogger relay provides electrical current to the rear window defogger grid and the amber indicator lamp in the switch,
which lights to indicate when the defogger system is turned On. The defogger illumination lamp and indicator lamp bulbs are serviceable. The
defogger switch cannot be repaired and, if faulty or damaged, it must be replaced.
