Other information:
Removal
NOTE:
LH (left-hand) side shown, RH (right-hand) side similar.
Remove the front door trim panel.
Refer to: Front Door Trim Panel (501-05 Interior Trim and Ornamentation, Removal and Installation).
Remove the interior front door trim panel upper finish panel...
Overview
The
electric booster heater, if equipped, is used to heat the passenger
compartment during low ambient temperatures when the heater core cannot
provide sufficient heat due to low engine coolant temperatures. Once the
engine coolant reaches a sufficient temperature to heat the passenger
compartment, the climate control system stops using the electric booster
heater...