XJR (X300) L6-4.0L SC (AJ16) (1995)
Seat Heater: Description and Operation
Front Seats
The two cushion heaters and squab heater are regulated by a single in-line thermostat and operated by a switch mounted on the center console switch
pack. Operation of this switch causes the Body Processor Unit (BPU) to energize a timed input to SCM (for 11 minute ± 1) which in turn causes Seat
Control Module (SCM) to energize the heater supply. The supply will remain on until timed out, although the heater circuit will be broken by the
thermostat if the set temperature is exceeded.
NOTE: Heating can only occur when the ignition switch is position II and the ambient temperature is below the thermostat preset value of 26 °C.
Seat Component Locations, Fig.1
1. Recline/incline motor