Climate Control System - Ford Electric Ranger 1998 Student Manual

CLIMATE CONTROL SYSTEM

Heating System Description
HIGH VOLTAGE COMPONENT
Heating System
1998 Ranger EV New Model Training
LESSON 1: VEHICLE OVERVIEW
B
A
•
In place of using engine coolant to heat the passenger
compartment, the Electric Ranger uses a positive temperature
coefficient (PTC) heater.
•
A PTC switching module (A) provides high voltage to the
PTC heater.
•
The PTC switching module is located in the underhood
compartment in front of the high voltage power distribution
box (B).
•
The module is controlled by the IAA, and provides fault feedback
to the IAA, if any of the following faults occur:
– A short in the PTC switching module
– A heater core over-temperature condition
– A heater core fault
•
Feedback is provided on heater core fault conditions (open, short,
or over current).
ER026-A
1-37