Ford Ranger EV. Electric Manual - part 5
LESSON 1: VEHICLE OVERVIEW
1-17
INTERFACE ADAPTER ASSEMBLY (IAA)
Interface Adapter Assembly (IAA)
•
The interface adapter assembly (IAA) is located on the bulkhead
under the instrument panel, the same location as the gasoline-
powered Ranger EEC-V module.
•
The IAA is a low voltage multi-function module that manages the
climate control system, the auxiliary systems and most instrument
cluster gauges and lamps.
•
The IAA is networked with the TIM and the BCM to support
instrument cluster functions, contactor box operations, and
diagnostics.
•
The IAA diagnostics are accessible through the OBD-II diagnostic
connector under the instrument panel next to the steering column.
•
Diagnostic functions as well as parameter identification (PID) data
and active command modes are available.
•
Based on operator and vehicle demands, the IAA controls these
functions:
– High voltage A/C compressor (optional).
– High voltage positive temperature coefficient (PTC) heater.
– Air distribution blend door and climate control blower fan
motor.
– Power steering.
– DC/DC converter.
– Vacuum pump.
– Liquid cooling system coolant pump and two-speed radiator fan.
– Instrument cluster operation.