Frelander 2. Manual — part 518
8
-
TCM
9
-
Engine Control Module (ECM)
10
-
Diagnostic socket
11
-
Occupant Classification Sensor (OCS - NAS only
COMPONENT LOCATION - MOST
Item
Part Number
Description
1
-
Integrated control Module (ICM) - Face plate
2
-
Integrated Head Unit (IHU) - Hi-Line
3
-
Touch Screen Display (TAD)
4
-
Integrated Head Unit (IHU) - Hi-Line
5
-
Bluetooth phone module
6
-
Amplifier/tuner
7
-
Digital Audio Broadcast (DAB) receiver
8
-
Navigation computer
OVERVIEW
The vehicle electrical system comprises a number of control modules which are interconnected via several network
systems.
The following network systems are used on the vehicle:
High Speed Controller Area Network bus
Medium speed CAN bus
Local Interconnect Network (LIN) bus
Media Orientated Systems Transport (MOST) system.
The CJB is the 'gateway' for the network systems which allows information to be exchanged between networks.
The entertainment system components are connected on a fiber optic MOST system. The MOST system can send and
receive information to/from the other network systems via a 'gateway' in the Integrated Control Module.
The following table shows each vehicle control module, the network system to which it is connected, its function and
location in the vehicle.
Module
Network
System
Function
Vehicle Location
CJB
High speed
CAN bus
Controls body functions and power distribution
Passenger footwell, behind
glovebox
Steering angle sensor
High speed
CAN bus
Transmits steering positional information
Integral with the steering wheel
clockspring
Diagnostic socket
High speed
CAN bus
Allows the transfer of vehicle information using IDS
or other diagnostic tool
Driver's footwell on underside of
instrument panel
RCM
High speed
CAN bus
Controls deployment of supplementary restraint
components
Rear of centre console, below
arm rest
TCM
High speed
CAN bus
Controls automatic transmission operation
Mounted on the top of the
transmission housing
ECM
High speed
CAN bus
Controls engine management and fuel system
operation
Mounted between the bulkheads
in the engine compartment
ABS module
High speed
CAN bus
Controls all aspects of the braking system
Mounted between the bulkheads
on LH side of engine
compartment
Headlamp levelling
module
High speed
CAN bus
Controls the dynamic headlamp levelling function
Passenger footwell, behind the
glovebox
Occupant classification
sensor (NAS only)
High speed
CAN bus
Detects when a passenger is in the front passenger
seat
Underside of passenger seat
Terrain Response
module
High speed
CAN bus
Controls the Terrain Response system using data
from other vehicle systems
Integral with Terrain Response
rotary control
Electronic differential
control module
High speed
CAN bus
Controls the operation of the electronic differential
Mounted on front of rear
differential
CJB
Medium
speed CAN
bus
Controls body functions and power distribution
Passenger footwell, behind
glovebox
Fuel fired heater
module
Medium
speed CAN
bus
Controls operation of the fuel fired heater
Integrated with the ATC module
Diagnostic socket
Medium
speed CAN
bus
Allows the transfer of vehicle information using IDS
or other diagnostic tool
Driver's footwell on underside of
instrument panel
Passenger door module Medium
speed CAN
bus
Controls window and locking functions
Mounted in passenger door
Parking aid module
Medium
speed CAN
bus
Controls parking aid system
Mounted on LH rear suspension
turret
Seat memory module
Medium
speed CAN
bus
Controls driver seat positioning and also memory
functions of other driver personalised functions
Under driver's seat
Trailer module
Medium
speed CAN
bus
Controls operation of trailer lamps and also informs
CJB that trailer connected
LH side of luggage
compartment, behind
suspension turret
Instrument
cluster/Driver
Information Module
Medium
speed CAN
bus
Receives data from other systems to provide driver
information
Instrument panel
Driver's door module
Medium
speed CAN
bus
Controls window and locking functions
Mounted in driver's door
ATC module
Medium
speed CAN
bus
Contains controls for the heating and air
conditioning systems
Mounted in centre console
Module
Network
System
Function
Vehicle Location
Integrated Control
Module
Medium
speed CAN
bus
Contains controls for the entertainment system and
gateway between audio system and other vehicle
systems
Integral part of head unit,
located in centre console
Integrated Head Unit
(IHU)
Medium
speed CAN
bus
Contains controls for the entertainment system
Integral part of head unit,
located in centre console
RH rear door module
LIN
Controls window and locking operation
Mounted in RH rear door
LH rear door module
LIN
Controls window and locking operation
Mounted in LH rear door
Generator
LIN
Provide load signal to ECM
Located in engine compartment.
Location on engine dependent
on engine fitment.
RH front seat heat
module
LIN
Used by ATC to control seat heater temperature
Underside of seat
LH front seat heat
module
LIN
Used by ATC to control seat heater temperature
Underside of seat
Air quality sensor
LIN
Measures air quality in the vehicle interior
Fitted to the heater assembly
Flap actuator module 1 LIN
Moves flaps within the heater assembly to direct air
flow to different parts of the interior
Part of the heater assembly
Flap actuator module 2 LIN
Moves flaps within the heater assembly to direct air
flow to different parts of the interior
Part of the heater assembly
Flap actuator module 3 LIN
Moves flaps within the heater assembly to direct air
flow to different parts of the interior
Part of the heater assembly
Flap actuator module 4 LIN
Moves flaps within the heater assembly to direct air
flow to different parts of the interior
Part of the heater assembly
Flap actuator module 5 LIN
Moves flaps within the heater assembly to direct air
flow to different parts of the interior
Part of the heater assembly
Humidity sensor
LIN
Measures air quality in the vehicle interior
Integral with the interior rear
view mirror
HVAC control module
LIN
Controls operation of the HVAC system functions
Integral with HVAC controls
panel in centre console
Steering wheel module LIN
Converts analogue signals from steering wheel
switches into digital messages
Behind steering wheel
clockspring
Battery backed sounder LIN
Activated by CJB when alarm trigger is received
Mounted in a central position
between the bulkheads in the
engine compartment
Electric steering
column lock
LIN
Controls the locking and unlocking of the steering
column
On underside of steering
column, under lower column
shroud
CJB
LIN
Control body functions and power distribution
Passenger footwell, behind
glovebox
Light switch module
LIN
Control of headlamp operation and levelling
Driver's side of instrument panel
Volumetric sensor
LIN
Detects movement in vehicle interior and activates
anti-theft alarm system
In housing in centre of
headlining
Rain sensor module
LIN
Detects moisture on the windshield
At top of windshield
Start control unit
LIN
Used to identify the remote handset - component of
the keyless start system
In instrument panel, adjacent to
the steering column
RF receiver
LIN
Receives RF transmissions from the TPMS system
and the remote handset
Positioned adjacent to the rear
interior lamp, behind the
headlining
Headlamp levelling
module
LIN
Controls the dynamic headlamp levelling functions
Passenger footwell, behind
glovebox, integral with
headlamp levelling module
RH headlamp
LIN
Provides positional information to the headlamp
levelling module
Attached to the headlamp
assembly
LH headlamp
LIN
Provides positional data to the headlamp levelling
module
Attached to the headlamp
assembly
Driver's window switch LIN
Controls operation of the driver's window
Mounted in driver's door
Driver's door module
LIN
Controls window and locking functions
Mounted in driver's door
Passenger door module LIN
Controls window and locking functions
Mounted in passenger door
Transmission selector
lever module
LIN
Sends selector lever position to the TCM
Located below centre console
TCM
LIN
Receives selector lever position information to
control transmission operation
Mounted on the top of the
transmission housing
Integrated Control
Module
MOST
Contains controls for the entertainment system and
gateway between audio system and other vehicle
systems
Integral part of head unit,
located in centre console
Integrated Head Unit
MOST
Contains controls for the entertainment system
Integral part of head unit,
located in centre console
Digital Audio Broadcast
(DAB) receiver
MOST
Receives digital radio broadcasts
Mounted in LH side of the
luggage compartment
Bluetooth phone
module
MOST
Controls the operation of the Bluetooth phone
system
Mounted in RH side of the
luggage compartment
Amplifier/Tuner
MOST
Provides amplification for the entertainment
systems and reception of radio RF broadcasts
Mounted in RH side of the
luggage compartment
Navigation computer
MOST
Reads map data from a DVD to calculate and display
visual route guidance information via the TAD and
audible guidance via the amplifier to the driver
Below the IHU in the centre
console
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