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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24
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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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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Connector B
Mono -7Mono +1
Radio Remote Control Ground8Switched Accessory +2
Auxiliary Left -9Auxiliary Left +3
Auxiliary Right -10Auxiliary Right +4
-11Phone Transceiver Active5
-12Radio Remote Control +6
Connector C
-7-1
-8-2
-9-3
-10-4
Auxiliary 2 Right11Auxiliary 2 Left5
-12Audio Ground6
Fuse Relay
no fuse is fitted to the radio1
no fuse is fitted to the radio2
4.9.2 Possible Accessories
Electric Antenna- Activation line, pin B2
(Switched Accessory +) is switched: 0 Volts when
the radio is switched off and +12 Volts when the
radio is switched on.
Auxiliary Input- Accepts a line-out from a
personal stereo or digital media player. This can
be supported by left channel pin C5 (+) and right
channel pin C11 (+) with a common ground, pin
C6, wired to a jack plug socket.
Audio Mute- There is a requirement under the
Health and Safety Machinery Directive to mute
the radio when machinery is in operation - this is
necessary to hear audible alarms and signals.
Pin B5 (C3-5 on the electrical schematic) on the
FAKRA interface should be used for this. In order
to avoid electrical issues due to leakage, and to
ensure connector compatibility, a connector
insert and a pre-crimped wire and terminal are
available as part of a wiring accessory kit, should
be used (Kit Part number KT6C1V-14A411-L*).
NOTE: When this line is pulled low (ground),
radio / CD sound is muted. However, there is no
wire present in the harness as this function is
normally communicated through the CAN bus.
Refer to: 4.14 Special Conversions (page 131).
(Adding Connectors, Terminals and Wiring)
After Market Hands Free Telephone Kit
(Non CAN-based)- Power should be supplied
via a fused battery line and activated by the
accessory line, pin A16. The mute line from the
phone is connected to Phone Transceiver Active,
pin B5. The audio output from the phone kit
should be fed into pins B1 (+) and B7 (–). The
phone audio is then amplified and diverted
through vehicle speakers.
Refer to: 4.14 Special Conversions (page 131).
Adding Connectors, Terminals and Wiring (for
Phone Transceiver Active / Speaker Terminals
and Wires).
After Market Audio / Navigation (Non
CAN-based)- Power should be supplied via a
fused battery line and activated by accessory
line, pin A16. Auxiliary input is connected as per
above.
NOTE: Note: Vehicle speed and reverse are
now CAN messages and supplied via the vehicle
multimedia bus, A9 (+) and A10 (-). There is no
hard wired Vehicle Speed Signal or reverse signal
available.
Additional Rear Speakers- Camper
vehicles, typically, are only equipped with
speakers in the front doors, in which case at
end-of-line the vehicle will be programmed for
just the front speakers and the fade function
disabled on the radios. If the radio is set for four
speakers, and those at the rear are absent, a
fault code will be flagged. The vehicle would need
reconfiguring at a Dealer once speakers are
installed. The radio will output 17W per channel
(left and right); a wire size with a CSA of 0.75 is
recommended.
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However, it is possible to add an additional lock(s)
– see also the section covering the ‘third button
on key fob’ – but only by utilizing relays (the
electric locks are operated by surface mounted
relays in the Central Junction Box – these are
only capable of powering one lock each, in
addition to which the output of these devices is
current-sensed to check it is within minimum and
maximum limits: I) to verify operation, and ii) as
part of the security system). For camper vehicles,
the Central Junction Box is configured for a
chassis cab vehicle.
Depending on functionality required, the pins
used will emulate the basic locking/unlocking
operation of an existing door. Note, however,
that any additional locks will not be covered by
the vehicle alarm or operate Central Junction
Box controlled lighting, etc. It would be necessary
to splice into either the Central Junction Box
connector or the in-line connector for the door
jumper harness. The coil of the relay (max.
300mA) should be added across the relevant
pin and ground (i.e. one relay for lock all, one
relay for driver door unlock etc.)
The use of Ford Transit lock mechanisms is
strongly recommended as the Central Junction
Box is designed to drive these latches for the
correct amount of time.
Function14A631 in-line
Passenger Side
14A631 in-line Drive
Side
Central Junc-
tion Box
Driver door unlock-6C2-7
Passenger door unlock (on
chassis Cab / Cab-Van Floor
only
6-C2-8
Deadlock all55C2-23
Lock all88C2-24
Locking Configurations- The following list
details specific locking scenarios that have been
noted by customers:
1.Raid locking or drive away locking for taxi and
parcel van usage – this is a configurable
parameter in the Central Junction Box (Ford
Dealerships can set this).
2.Slam locking – this is a configurable parameter
in Central Junction Box (marketing want to
sell this as an option, therefore dealerships
can only switch off this feature, but not switch
on).
3.N1 lock reconfiguration into M2 locking, i.e. no
deadlocks – this can be reconfigured to be
central-locking only by a Ford Dealer (via
Dealership hotline).
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Third Button on Key Fob
Pin 12 Controlled by Third Button on the Key Fob
DescriptionItem
Key Fob SignalPin
12
Pin 12 on connector C2 of the Central Junction
Box is controlled by the third button on the key
fob – please refer to Figure E84730. This provides
a 1 second 12V pulse when pressed once, and
if pressed again within 3 seconds, a further 12V
pulse for ¼ second. (This second pulse is
basically an emulation of the double locking
system). This signal can be used for a variety of
converter applications, subject to load required.
This feature is only available on Chassis
Cab and Cab-Van Floor vehicles, and
Campers (but not Van, Bus or Kombi or Double
Chassis Cab) vehicles that have a high level
Central Junction Box, part number
6C1T-14A073-C*. Pin C2-12 is part of the circuit
protected by a 15A fuse (F78).
NOTE: There are no micro switches, no current
sensing, or any alarm system functionality
associated with this pin, or any lockset driven by
it.
See also Adding Connectors, Terminals and
Wiring.
4.14.9 Engine RPM (Revs Per
Minute) Speed Controller
System Overview
This feature relates to the new generation Transit
launched in 2006 & is available on all diesel
variants.
This feature enables the engine in the vehicle to
be run at elevated RPM speeds. The power from
the engine can then be used to drive ancillary
equipment. The ancillary equipment may be
powered either via a Front End Accessory Drive
(FEAD) layout (in a similar fashion to the AC
compressor), or via a Power Take Off (PTO)
layout by installing a secondary gearbox between
the output shaft of the vehicles primary
transmission & the rear axle with the secondary
gearbox transmitting power either to the rear
wheels during normal driving or redirecting power
to the ancillary equipment.
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4 Electrical
15712E84730