Ford Ranger EV (2001 year). Manual - part 88

412-04-2

412-04-2

Control Components

SPECIFICATIONS

Torque Specifications

Torque Specifications

Description

Nm

Lb/In

Description

Nm

Lb/In

IAA electrical connector bolt

6

53.5

Auxiliary battery ground cable

6

53 

nut

IAA mounting nuts

9

80

Harness clamp nut

7

62.5

PTC module bolts

12

107

High voltage power

2

18

VBC screws

1.5

13

distribution box cover screws

(Continued)

The interface adapter assembly (IAA) module is a

DESCRIPTION AND OPERATION

low voltage multi-function module that manages the

Control Components

following functions:

NOTE: Electric Ranger shown, Postal Ranger EV
similar. 

•

instrument cluster functions 

•

power steering pump operation 

•

climate control system 

•

high voltage to low voltage conversion 

•

vacuum pump operation 

The IAA module communicates with the traction
inverter module (TIM) and the battery controller
module (BCM) to support the instrument cluster
operation and to determine when to close the high
voltage auxiliary contactor.
The positive temperature coefficient (PTC)
switching module provides high voltage to the PTC
heater. Driver demands for heat are received by the
IAA module, which commands the PTC switching

Item

Description

module to operate the PTC heater. The PTC

1

Interface Adapter Assembly (IAA) 

switching  module can vary output to operate the

2

Positive Temperature Coefficient (PTC)

PTC heater at either a low or high setting.

Module

REMOVAL AND INSTALLATION

Interface Adapter Assembly (IAA) Module

Removal

NOTE: Electric Ranger shown, Postal Ranger EV
similar. 

1. Verify that the vehicle is turned off and is not

being charged.

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Control Components

REMOVAL AND INSTALLATION (Continued)

2. Disconnect the auxiliary battery ground cable.

3. Disconnect the interface adapter assembly

(IAA) module electrical connector.
1 Loosen the connector bolt.
2 Remove the harness bracket nut.
3 Disconnect the connector.

4. Remove the IAA module.

1 Remove the nuts.
2 Remove the mounting plate.
3 Remove the IAA module.

Installation

1. Install the IAA module.

1 Install the IAA module.
2 Position the mounting plate.
3 Install the nuts.

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Control Components

REMOVAL AND INSTALLATION (Continued)

2. Connect the IAA module electrical connector.

1 Connect the electrical connector.
2 Tighten the connector bolt.
3 Install the harness clamp nut.

3. Connect the auxiliary battery ground cable.

Positive Temperature Coefficient (PTC) Switching Module

Removal

NOTE: Electric Ranger shown, Postal Ranger EV
similar. 

1. Verify that the vehicle is turned off and is not

being charged.

2. Disconnect the auxiliary battery ground cable.

3. Remove the high voltage power distribution box

(HVPDB) cover.
1 Remove the screws.
2 Remove the cover.

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Control Components

REMOVAL AND INSTALLATION (Continued)

4. Remove the positive temperature coefficient

(PTC) switching module.
1 Disconnect the electrical connectors.
2 Remove the bolts.
3 Remove the module.

Installation

1. To install, reverse the removal procedure.

Variable Blower Controller (VBC)

Removal and Installation

1. Verify that the vehicle is turned off and is not

being charged.