
1.6 Electromagnetic Compatibility (EMC)
The base vehicle has been tested and certified
to all relevant legislation relating to
Electromagnetic Compatibility. All retrofitted
equipment must also comply with the relevant
legislation.
In addition, 2-way radio communication and other
equipment with built in radio transmitters (for
example anti-theft alarms, tracking devices)
should only be fitted to the vehicle if they operate
within the listed frequency bands and do not
exceed the maximum transmission output power
specified below
Frequency Overview
Maximum Output
Power (W)
Frequency (MHz)
501-54
5068-87.5
50142-176
50220-225
50380-512
10806-940
101200-1400
101710-1885
101885-2025
1.6.1 Antenna Location
The antenna can be placed on the roof of the
vehicle with the exception of cellular phone car
kits which transmit power below 2W. Such low
power devices may also be installed at the
bottom of the A-pillar behind the trim or on the
front windscreen.
Installation must be performed by suitably
qualified personnel in accordance with the
equipment manufacturer's installation instructions
and comply with the ISO technical specification
ISO/TS 21609: Road Vehicles - Electromagnetic
Compatibility guidelines for the installation of after
market radio frequency transmitting equipment.
In addition, the following guidelines must be
followed during installation:
•Do not mount any transceiver, microphones,
speakers or any other item in the deployment
path of the airbag system.
•Do not attach antenna cables to any part of
the original vehicle wiring or fuel and brake
pipes.
•Antenna and power cables must be a
minimum of 100mm from any electronic
modules and airbags.
•Make sure that any additional power feed is
taken directly from the SVO fuse box (when
available) or a recommended connection
point.
•Power and ground cables should be of higher
current capacity that the protection fuse.
Ground feed must be taken directly to the
battery.
Post installation checks must be made for
disturbances from and to all electrical equipment
in the vehicle both in the standby and transmit
modes. Checks should be carried out with the
ignition ON, engine running and be followed by a
road test at various speeds.
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1.12 Vehicle Transportation Aids and Vehicle Storage
CAUTIONS:
Disconnect the battery if the vehicle
is to be stored for more than 30
days.
Make sure that the protective covers
are not removed from an incomplete
vehicle until the conversion is
started.
Make sure that components
removed during conversion are kept
clean and dry.
Make sure that components
removed during conversion are
refitted to the same vehicle.
In addition:
•The windscreen wipers should be lifted off the
glass and set right up.
•All air intakes should be closed.
•Increase normal tyre pressure by 0.5 bar.
•The hand brake system should not be used.
•Apply suitable wheel chock to prevent roll
away.
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CAN-Bus System (Architecture)
Antilock Brake SystemKCentral Junction Box (Passenger Junction
Box)
A
Powertrain Control ModuleLVoice Recognition Module/Wireless
connection (blue tooth)
B
Steering Angle SensorMAudio Control Unit (Radio/CD)C*
Yaw Rate SensorNNavigation (Radio/CD)D*
Diagnostic ConnectorPRemote Keyless EntryE
Park Aid ModeQPassive Anti-Theft SystemF
Restraints Control ModuleRRain SensorG
Hybrid Electronic ClusterSBattery Backed Sounder (BBS)H
Interior Motion Sensing (IMS)J
* Either Audio Control Unit or Navigation
4.1.2 Central Junction Box (CJB)
WARNING: Unapproved and/or
incorrect connection to any of the
mating wiring can cause either the
associated systems to shut down
(overload protection), or permanent
damage to the Central Junction Box
itself.
Basic vehicle functions (for example: headlights,
front wipers) are available on all Central Junction
Boxes (CJBs). Increased vehicle features are
available on the mid- and high-level CJBs, as per
the following list:
Incremental FunctionalityCentral Junction Box (CJB)
6C1T-14A073-A_ (low)
(in addition to low level CJB)6C1T-14A073-B_ (mid)
Reverse CyclingRemote Keyless Entry
Slam LockingVIN Identification
Front Fog LightsPerimeter Alarm
Theatre Dimming (Interior Lights)Central and double Locking
Heated WindscreenZonal unlocking
Heated MirrorsAuto Locking on drive away
Rear WipersAuto Relocking on time out
Heated Rear Window(s)Crash Activated unlocking
Mis-locking feedback (audible
and visual)
(in addition to mid-level CJB)6C1T-14A073-C_ (high)
Ambient air temperature meas-
urement
Battery Backed Sounder (BBS)
Rain SensorInterior Motion Sensor (IMS)
Daytime Running LightsZonal opposite door relocking
AutolampsConfigurable unlocking
Fuel Pump Control (petrol only)CAT 1 Alarm (BBS, IMS & Rear
Glass Breakage)
Cruise control
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The Central Junction Box (CJB) is the prime
control module in the vehicle’s electrical
architecture. It is responsible for management of
most of the vehicle’s lighting, locking and security
systems. The following chart details the
consequences of overloading of the Central
Junction Box.
Maximum Loads on Central Junction Box
Overload ConditionMaximum
Load
Load TypeComponentFunction
Output driver damage5A/100msecRelayLow Side DriverBattery Discon-
nect Switch
Overheat - output shutdown75W@13VBulbLow Side DriverEntry Illumina-
tion
Overheat - output shutdown8A normal, 16A/
10msec in-rush
Electro-mechan-
ical horn
High Side DriverAlarm Siren
Output shutdown if more
than 35mA drawn
25mALogic supplyVoltage trackerAccelerator
Pedal
Blown fuse - if bigger fuse
fitted, relay and/or printed
circuit board damaged
100W@13VBulbRelayBattery Saver
Supply
Blown fuse - if bigger fuse
fitted, relay and/or printed
circuit board damaged
60W@13VBulbRelayLicence Plate
Overheat-output shutdown11W@13VBulbHigh Side DriverCluster Dimming
Blown fuse - if bigger fuse
fitted, relay and/or printed
circuit board damaged
63W@13VBulbRelayPosition Lamp
Left Hand
Blown fuse - if bigger fuse
fitted, relay and/or printed
circuit board damaged
43W@13VBulbRelayPosition Lamp
Right Hand
Overheat-output shutdown3x21W@13VBulbTurn Indicator
Left Hand
Overheat-output shutdown3x21W@13VBulbTurn Indicator
Right Hand
Blown fuse - if bigger fuse
fitted, relay and/or printed
circuit board damaged
15A (fuse
limited)
LatchRelayLock/double
lock
Relay and/or printed circuit
board damaged
5,42A@13V,
2,5mh
LatchUnlock Relay
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Central Junction Box - as viewed in-car position
DescriptionItem
Part labelA
4.1.3 Circuit Diagram
When designing electrical circuits, or making
alterations, the following must be considered:
•Current rating of wiring, see following
specification chart (Current Rating of Wire
Sizes)
•Any voltage drop in the circuit should not
lower the terminal voltage at consumption
point to below 95% of battery voltage.
•Do not cut into the original loom.
•Additional earth returns should be included to
support new equipment.
•A supplementary circuit diagram and
accompanying instructions should be added
to the Owner’s Information or a separate
Manual supplied with the vehicle for each
unique component.
NOTE: For further information please contact
your local National Sales Company
representative, or Local Ford Dealer.
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4.3 Charging System
4.3.1 General Information and
Specific Warnings
The Transit electrical system is a 12-Volt supply
with a negative earth return. The alternator and
battery equipment used as standard are
designed for normal operations with the type of
engine fitted. Higher capacity batteries are
available as standard production options and
special vehicle options. Before installing additional
electrical equipment check that the battery
capacity, harness load capability, and alternator
output are suitable for the extra load.
The battery capacity and charge available from
the alternator must be adequate to ensure
engine cranking in unfavorable climatic conditions
but excessive battery capacity could damage
the starter motor.
The Transit utilizes multiplexed vehicle electronics
- it is recommended that the appropriate Ford
proprietary accessory systems are used.
Inappropriate or incorrect connection of
additional equipment could cause mis-operation,
or damage to the vehicle, and so invalidate any
warranty.
Additional connection points are provided
specifically for customer use (except M1 and M2
Bus), and are located on the outside of the
driver's seat base.
Do not jump-start the vehicle directly from the
battery. Use designated jump-start points. Refer
to the owners literature.
4.3.2 Power Management
Settings
There are four Power Management Settings
available:
•Factory
•Transport
•Normal
•Crash
Factory and Transport modes are only active
with ignition off; with ignition on, the vehicle
operates with full functionality. When in Transport
mode, the interior lights, clocks, and power
locking and alarms (where fitted) do not work.
It is possible to switch from Transport Mode to
Normal Mode without the use of any ancillary
equipment, but not vice versa. To change mode,
the brake pedal must be depressed five times,
and the hazard warning switch operated twice
(in any combination) within 10 seconds.
WARNING: It is not possible to return
the transport setting without using
the vehicle's diagnostics.
At the end of production, the vehicle is
configured to the transport setting to minimize
power consumption. As part of the Pre Delivery
Inspection process at the Ford dealership, the
vehicle is reconfigured to normal operation.
4.3.3 Electrical Conversions
Operator requirements for additional and
specialised electrical equipment varies. The
vehicle converter/modifier must, therefore,
consider the following points when designing the
installation:
•Legality and regulatory conformity of the base
vehicle.
•Drive-ability and serviceability of the base
vehicle.
•The effect of regulations governing the
proposed conversion including National
Legislation in the country of sale.
•The method of integrating the circuit into the
base vehicle.
•No additional circuits are to be run alongside
the electrical circuits (shown in blue in the
figure below) associated with the
Management System (shown in green in the
figure below), due to the possible Electro
Motive Force (EMF) effect on the circuits.
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Electrical circuits associated with Management System
•The base vehicle will be equipped with a single
or dual battery system (with battery disconnect
switch). Additional batteries can be fitted in
conjunction with a battery disconnect switch
(cut-off relay), described in the section Battery
and Cables.
•When auxiliary electrical systems are added
to the vehicle, it is recommended that the
additional circuits are designed to be used with
the Special Vehicle Option Auxiliary Fuse Box
and / or the Link Harnesses, to maintain the
integrity of the electrical system.
Refer to: 4.13 Fuses and Relays (page 119).
•The materials and installation must meet the
quality standards described in this section.
•Any additional equipment or components must
be designed such that they have no Electro
Motive Force effect on the vehicle.
•The alternator and Engine Management
System [EMS, also referred to as Powertrain
Control Module (PCM)] are interdependent.
•The alternator should not be used as a source
for a conventional D+ signal.
Refer to: 4.14 Special Conversions (page 131).
•Take special care with the routing of existing
electrical looms within the vehicle to avoid
damage when fitting additional equipment.
WARNING: The fitting of voltage
boosters or other devices to
enhance alternator output are not
allowed. The fitting of such devices
will not only invalidate vehicle
warranties, but could damage either,
or both, the alternator and Engine
Management System or Powertrain
Control Module (PCM), and possibly
affect vehicle legal compliance.
Check local legislation.
Please see below the note concerning installation
of equipment containing an electric motor.
Where vehicles are equipped with twin battery
system, no additional connections should be
made to the terminal posts of the start relevant
battery. Further connections should only be made
via the customer connection point.
When an additional battery is fitted, this must be
connected to the appropriate battery.
Refer to: 4.4 Battery and Cables (page 98).
Disconnect all batteries, including earth, and the
alternator multi-plug prior to using welding or
cutting equipment and before working on any
electrical installations.
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•Before disconnecting the battery, check
availability of radio key code.
•Fuses – when auxiliary electrical systems are
to be added to the vehicle it is mandatory that
the additional circuit design includes the
necessary fuses.
•The Special Vehicle Option auxiliary fuse box
is recommended.
Refer to: 4.13 Fuses and Relays (page 119).
4.3.4 Fitting of Equipment
Containing an Electric Motor
WARNINGS:
When equipment containing an
electrical motor is connected, it
must be connected via a blocking
diode or relay to prevent “back
Electro Motive Force (EMF)” being
applied to the auxiliary terminal.
When electric motors are to be
fitted, account must be taken of the
potentially high currents that a
motor can draw.
CAUTION: The following must be
observed:
•All motors must be driven via relays with
contacts rated at least 3 times the maximum
rated current of the motor.
•All motor supply circuits must be individually
fused with the proper fuse rating for the
motor.
•All power wiring must be rated for at least 3
times the rating of the motor and installed as
far away as possible from any existing vehicle
wiring.
•All motors fitted should be fully suppressed to
ensure electrical interference does not affect
the vehicle systems.
•Add EMC emissions statement to CE
approval.
4.3.5 Vehicle Electrical Capacity
- Alternator
WARNING: Do not cut into the
alternator wires or use the
alternator as a source to obtain a
'D+ Signal'
An engine run signal is available from the Central
Junction Box by installing a T-piece jumper
harness (Ford Part Number 6C1V-14A411-F_).
Refer to: 4.14 Special Conversions (page 131).
4.3.6 Charge Balance Guidelines
The base vehicle is fitted with a 150A alternator.
It is recommended to conduct a charge balance
calculation in case the conversion comprises a
high number of electrical consumers or high
electrical consumption is expected.
4.3.7 Circuit Diagrams
For circuit diagrams for Auxiliary Fuse Box
Connections and Standard Ford relays.
Refer to: 4.13 Fuses and Relays (page 119).
Full vehicle wiring and circuit diagrams are in the
Ford Workshop Manual.
NOTE: For further information please contact
your local National Sales Company
representative, or Local Ford Dealer. If they are
unable to help you then please contact the
Vehicle Converter Advisory Service at
[email protected].
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