Ford Fiesta: Auxiliary Climate Control / Auxiliary Climate Control - Overview. Description and Operation
Overview
The
electric booster heater is a heater element made up of ceramic
resistors that is mounted in the heater core and evaporator core
housing. It directly heats the airflow into the passenger compartment
rapidly in the case of low ambient temperatures.
The electric booster heater system includes the following components:
-
Electric booster heater
-
Electric booster heater relay 1 and electric booster heater relay 2
-
IPC
-
HVAC control module
System Operation
Electric Booster Heater
Item
Description
1
HS-CAN
2
Ambient Air Temperature (AAT) sensor
3
Electric booster heater
4
HVAC control module
5
Electric booster heater relay 1
6
Electric booster heater relay 2
7
IPC
8
PCM
9
ECT senso..
Other information:
Removal
NOTICE:
Do not service the brake pedal or brake booster without
first removing the stoplamp switch and the cruise control deactivator
switch. Remove the switches with the brake pedal in the at-rest
position. The switch plunger must be compressed for the switch to rotate
in the bracket. Removing the switches with the plunger extended (during
pedal apply) will result in swit..
Special Tool(s) /
General Equipment
Flat Headed Screw Driver
Hog Ring Plier
Removal
WARNING:
Front seat backrest trim covers installed on seats equipped
with seat side airbags cannot be repaired. A new trim cover must be
installed. Cleaning is permissible. Failure to follow these instructions
may result in the seat side airbag deploying incorrect..