LUCAS 27VT CCU (FREELANDER) - System Overview
The CCU, manufactured by Lucas is one of a range of Basic body control ECUís manufactured specifically to suit specific models. It takes care of many vehicle functions such as Alarm & immobilization, central locking and windows, instruments, lights, wash and wipe. It clips directly onto the back of the fuse box where connectors on one side mate directly with plugs molded into the fuse panels rear.
SM024 - LUCAS 27VT CCU (FREELANDER) - System Help file
Version 1.22

LUCAS 27VT CCU (FREELANDER) - Known Fitments
Vehicle makes, models and variants known or believed to be using this vehicle system, required diagnostic lead and degree of known compatibility.

Vehicle Make Vehicle Model Vehicle Variant Diagnostic Lead
Land Rover Freelander ALL Black OBDII Lead

LUCAS 27VT CCU (FREELANDER) - Physical Details

SM024 - LUCAS 27VT CCU (FREELANDER) - Diagnostic Capabilities (Read Fault Codes)
Not really a fault code memory as such but it shows the last 4 trigger events for the Alarm in chronological order which helps to identify the source of any problems causing false triggers.

SM024 - LUCAS 27VT CCU (FREELANDER) - Diagnostic Capabilities (Clear Fault Codes)
This function diagnostically clears the fault code memory.

SM024 - LUCAS 27VT CCU (FREELANDER) - Diagnostic Capabilities (Settings)
Values, configuration settings, and other stored information which can be read from the ECU, edited and then rewritten back. Read settings can also be stored as a standard HTML page for reference. These pages can then later be re loaded and re written back to the ECU. Please note that some values may be read only due to the fact that they are supplied from the ECUís ROM or are internally calculated.

  • EKA number: This is the master number which is set randomly during manufacture of the CCU and cannot be changed.
  • Master EKA: Read only code for this CCU which cannot be changed.
  • Country: This is a number which denotes the country for which this vehicle is programmed. Except for when this value is set to Zero, this setting does not alter any functionality of the CCU and is used only for reference purposes. When set to Zero this engages the Transit mode of the CCU. This is a list of numbers with their respective countries.
    1 Transit
    2 UK
    3 Austria
    4 Belgium
    5 Canary
    6 Cyprus
    7 Cyprus 2
    8 France
    9 Germany
    10 Germany 2
    11 Gibraltar
    12 Greece
    13 Ireland
    14 Italy
    15 Luxemburg
    16 Malta
    17 Netherlands
    18 Portugal
    19 Spain
    20 Switzerland
    21 Tunisia
    22 Bulgaria
    23 Croatia
    24 Hungary
    25 Macedonia
    26 Poland
    27 Slovak
    28 Slovenia
    29 Turkey
    30 Denmark
    31 Finland
    32 Norway
    33 Sweden
    34 Algeria
    35 Bahrain
    36 Iran
    37 Israel
    38 Jordan
    39 Kuwait
    40 Lebanon
    41 Libya
    42 Oman
    43 Qatar
    44 Saudi
    45 Syria
    46 United Arab Emirates
    47 Hong Kong
    48 Japan
    49 Korea
    50 Macao
    51 Malaysia
    52 Singapore
    53 Taiwan
    54 Thailand
    55 USA
    56 Canada
    57 Argentina
    58 Australia
    59 Chile
    60 Dominican D Republic
    61 French Territories
    62 Guatemala
    63 Jamaica
    64 Morocco
    65 New Zealand
    67 South Africa
    68 Uruguay
    69 Police
    70 Limousine
    71 Hearse
    72 S-Vehicle
    73 Gen-UK
    74 Gen-Gulf
    75 Gen-Row
    76 Unknown
  • Model year: This is the year the ECU was manufactured.
  • Vin number: The last six digits of the vehicles unique identification number. All other digits can be calculated from the other vehicle information. For a new ECU the VIN number will be N/A.
  • Doors: This is required to be set to inform the CCU which sensors and doors are active for the Alarm and locking functions. For a new ECU the number of doors will be set to N/A.
  • Coding index: This is a number which denotes the layout of the options within the EEPROM of the ECU and denotes which coding map should be used to program the ECU with.
  • Software ID: The software revision number for this CCU.
  • Hardware ID: The hardware revision for this CCU.
  • Diagnostic ID: This is a revision which denotes any changes to the diagnostic communication software within the CCU.
  • CCU serial number: This is the unique serial number of this CCU.
  • EDC code: Only used on EDC. When the ignition is turned on, the CCU, providing it is in receipt of a valid mobilization code, from receiving an unlock signal from the correct key fob or having its EKA code entered, and is therefore not in an alarmed or immobilised state, sends a coded signal to the Engine Management System ECU (EDC) and in turn, the EDC ECU then compares against a code it already has stored in it. If the two codes compare OK, the EMS ECU allows the engine to start. This forms the basis of the immobiliser. If the EDC ECU or the CCU is replaced, the two codes will not match and it will not be possible to start the engine. It is therefore necessary to synchronise the codes in both the CCU and the EDC ECU.
  • SPE: This function enables or disables SPE (Single Point Locking). When SPE is enabled and the doors are super locked, a single press of the unlock button on the PLIP(Key Fob) will unlock the drivers door and change the status of all other doors from super locked to locked. A second press of the unlock button will then be required to fully unlock them.
  • EKA: This feature is available only for ECUs with coding index 1. For coding index 2 and 3 this setting will show N/A.
  • EKA delay: This function configures the internal EKA manager to use a protective timeout function of 30 minutes after 3 incorrect codes have been entered or not. This feature is available only for ECUs with coding index 1. For coding index 2 and 3 this setting will show N/A.
  • Alarm: This function enables or disables the full Alarm function including LED of the CCU.
  • Engine: requires to be set to either Petrol or Diesel.
  • Plip superlock: This function sets how many presses of the PLIP (Key Fob) are required to super lock the doors. Super Locking requires to be enabled for this function to be effective.
  • Superlocking: This setting enables or disables super locking (super locking is a secondary locking function which stops a locked door from being opened by using the internal handle).
  • Mislock sound: This denotes if a sound is to be made when the CCU detects a mislock condition.
  • Sounder: This setting allows configuration of the CCU for the fitting of either a standard vehicle horn or the BBUS (Battery Backed up sounder). Selecting the wrong setting may result in no sound being made.
  • Instrument pack distance units: The distance units can be set to miles per hour or kilometres per hour.
  • Self test: Later versions of the CCU have a self test facility built in which can be triggered using a combination of the rear fog button and the ignition key. This feature, when fitted, can then be enabled or disabled using this function.
  • Welcome light: This function, when enabled puts the interior courtesy light on automatically whenever the vehicle is unlocked. Some hardware versions of the CCU do not have the facility to disable this function.
  • Alarm sound: This setting denotes if the Alarm sounder noise will be pulsed or continuous (single).
  • Hazard confirm: This denotes if the vehicles hazard lamps will be used to confirm locking and unlocking.
  • Volumetrics: This setting allows the disabling of the internal volumetric sensor as a detector for the Alarm function of the CCU. This is done by the CCU not applying power to the sensor when the alarm is armed.
  • Brake lamp: This function controls the testing of the Handbrake/low fluid warning lamp within the instrument pack by the CCU when the ignition is turned on. This feature is available for ECUs with coding index 1. For coding index 2 and 3 the value will be N/A.
  • Seat belt lamp: This function controls the operation of the seat belt reminder lamp within the instrument pack by the CCU whenever the ignition is turned on. This feature is not available for ECUs with coding index 3.
  • Cat heat lamp: This function controls the testing of the catalytic converter over temperature warning lamp within the instrument pack by the CCU when the ignition is turned on. This function has no effect on instrument packs which do not have this lamp fitted. This feature is available in ECUs with coding index 1.
  • Hazard alarm: This denotes if the vehicles hazard lamps will be used to indicate the activation (Triggering) of the Alarm.
  • 1 shot: This alters the functionality of the Rear Tail window.
  • EMS signal: This changes the duration that the CCU is sending data to the EMS (Engine Management System) in order to mobilize it. It can either be pulsed which means it will only be sent for a period of time which begins when the engine is cranked over or single which means the transmission is continuous. This feature is available in ECUs with coding index 1.
  • Passive immobilise: This function enables or disables the passive engine immobilizing function of the CCU. This feature is available in ECUs with coding index 1.
  • Headlamp wash: This function controls the headlamp power wash function and only applies to vehicles fitted with headlamp washers. This feature is available in ECUs with coding index 1.
  • ABS: This denotes if the vehicle has ABS fitted or not.
  • Wash wipe: This function enables a pre programmed number of sweeps of the front wipers, whenever the screen wash is used. This feature is available in ECUs with coding index 1 and 2.
  • Gearbox: For configuration of either Automatic or Manual gearboxes.
  • Drive: Allows configuration for either LHD (left Hand Drive) or RHD (Right Hand Drive).
  • Over speed sounder: Some countries require a speed warning function which requires the fitting of a suitably equipped instrument pack and the enabling of this function. This feature is available only for ECUs with coding index 1. For coding index 2 and 3, it will show N/A.
  • Air conditioning: Denotes if Air Conditioning is fitted or not.
  • Tail window: Denotes if the electric tail window is fitted or not.
  • Seat belt sound: This function controls the operation of the seat belt reminder sound within the instrument pack by the CCU whenever the ignition is turned on. This feature is available only for ECUs with coding index 3. For coding index 1 and 2, it will show N/A.
  • Transport mode: This setting allows to set the CCU into transport mode or not. This feature is available only for ECUs with coding index 1. For coding index 2 and 3, it will show N/A.
  • Daytime running lamps: This setting allows to enable or disable the daytime running lamps. This feature is available only for ECUs with coding index 3. For coding index 1 and 2, it will show N/A.
  • Window lift enable: This feature is not available for ECUs with coding index 1. In this case it will show N/A.
  • Seatbelt reminder lamp: This function controls the operation of the seat belt reminder lamp within the instrument pack by the CCU whenever the ignition is turned on. This feature is available only for ECUs with coding index 3.
  • Key in warning: This function controls the operation of the key in warning within the instrument pack by the CCU whenever the key is left in the ignition when the door is open. This feature is not available for ECUs with coding index 1. In this case it will show N/A.
  • Seatbelt warning: This function controls the operation of the seat belt reminder lamp within the instrument pack by the CCU whenever the ignition is turned on. This feature is available only for ECUs with coding index 3.
  • Cos value: This feature is not available for ECUs with coding index 1. In this case it will show N/A.

SM024 - LUCAS 27VT CCU (FREELANDER) - Diagnostic Capabilities (Inputs)
Realtime live display of the information the electronic control unit of the selected vehicle system is currently deriving from its input sensors.<

ALARM AND LOCKING
  • CDL lock: This shows the status of the Dash mounted CDL lock switch.
  • CDL unlock: This shows the status of the Dash mounted CDL unlock switch.
  • Key lock: This shows the status of the Door mounted Key lock switch.
  • Key unlock: This shows the status of the Door mounted key unlock switch.
  • Ignition: This shows if the Ignition is on or off.
  • Driver's door: This shows if the driver's door is open or closed.
  • Passenger's door: This shows if any of the Passenger's doors are open or if they are all closed.
  • Tail door: This shows if the Tail Door is open or closed.
  • Roof: This shows the state of the removable roof micro switch. This only applies to 3 door vehicles.
  • Bonnet: This shows if the bonnet is open or closed.
  • Courtesy lamp: This shows the state of the internal Courtesy lamp, which can be ON, OFF or on a Timer.
  • Immobiliser: This shows the status of the immobiliser.
  • EKA mode: This shows the overall current status of the EKA function. The possible statuses are :
    • IDLE, The vehicle is not in an armed state.
    • WAITING, The Vehicle is locked and armed thus meaning that an EKA entry could be started.
    • ENTRY MODE, The vehicle has been unlocked using the KEY which is the start of the EKA entry sequence.
    • LOCKOUT, EKA entry is blocked.
    • RF ABORT, The PLIP (key fob) has been pressed. Since this function also Disarms the Alarm which puts the CCU into IDLE mode in respect of EKA, this status is only kept momentarily.
  • Eka entry: This shows the current state during EKA code Entry. States are :
    • WAITING, The Vehicle is locked and armed thus meaning that an EKA entry could be started. This status remains during the five minute delay after unlocking using the KEY.
    • 1ST DIGIT, This shows which digit is being entered.
    • 2ND DIGIT, This shows which digit is being entered.
    • 3RD DIGIT, This shows which digit is being entered.
    • 4TH DIGIT, This shows which digit is being entered.
  • Arming state: This shows the state of the arming of the Alarm system in respect of mislocking etc. Statuses are:
    • DISARMED, The Alarm is disarmed.
    • D / DOOR, The Alarm is armed excluding the drivers door.
    • P / DOOR, The Alarm is armed excluding a passenger door.
    • TAIL DOOR, The Alarm is armed excluding the Tail Door.
    • FULLY ARMED, The Alarm is fully Armed.
  • Volumetric state: This shows the state of the Volumetric sensor. States are :
    • IDLE, This is the state when the Volumetric sensor is not enabled.
    • SETTLING, This is a 15 second period which starts after the sensor has become active. It allows the vehicle interior to settle.
  • Locking state: This shows the current state of the vehicle locking system, options are :
    • UNLOCKED, all doors are unlocked.
    • INERTIA, The doors have been unlocked and will be kept this way due to the triggering or the Inertia impact sensor.
    • SPE, The Drivers door is unlocked and the passenger doors are locked but not super locked.
    • SAFETY, The doors have been locked using the dash mounted lock button.
    • LOCKED, The doors are all locked.
    • SUPER LOCKED, The doors are all Super Locked.
  • Alarm activation: This shows the state of the Alarm activation trigger.
    • NO TRIGGER, The Alarm has not been triggered.
    • TRIGGERED, The alarm has been triggered.
    • TIMEOUT, This means that the Alarm has been triggered and has timed out.
  • Door open request: This shows the status of the Rear Tail door open switch input.
OTHER
  • Tail window state: This gives the current status of the rear tail door window which due to it's complexity can be in one of 12 states at any one point in time. These States are:
    • CAL DOWN, This is when the tail window is being lowered during the calibration cycle.
    • CAL UP, This is when the tail window is being raised during the calibration cycle.
    • CAL STALL, This is when the tail window reaches the end of travel during either direction of the calibration cycle and stalls.
    • STATIONARY, This is when the window is not moving.
    • GOTO COS, This is when the window is moving to the COS (Clear Of Seal) position, this is to allow the door to open without fouling the seal and occurs when the Tail door open request has been received.
    • OPEN, The tail window is fully open.
    • AUTO CLOSE, This is when the tail window is closing itself automatically.
    • DOWN, The tail window is being lowered.
    • DOWN STALL, The tail window will lower (open) until it stalls.
    • UP, The tail window is being raised.
    • UP STALL, The tail window will raise (close) until it stalls.
    • FAILED, The tail window has failed to meet its required position.
  • Tail window drive: This gives the direction of drive being applied to the tail window.
  • Tail window up: This shows the status of the tail window raise switch.
  • Tail window down: This shows the status of the tail window lower switch.
  • Tail window position: This shows the numerical value which gives a relative position of the rear window to the CCU at any time allowing it to control its direction and position in all circumstances. The possible range is 0 to 65536.
  • Tail wiper switch: This shows the status of the tail wiper switch input.
  • Tail wash: This shows the status of the Tail washer switch input.
  • Tail wiper state: This displays the state of the rear tail door wiper, options are:
    • OFF SCREEN the tail wiper is parked off screen on the rubber moulding to allow the free driving of the tail door window.
    • INTERMITTENT the tail wiper is in intermittent wipe mode.
    • PROGRAMMED the tail wiper is wiping in response to usage of the wash facility.
    • CONTINUOUS
  • Tail wiper park: This shows the status of the rear wiper park switch input.
  • Front wiper state: This gives the state of the front wiper. Options are :
    • INTERMITTENT this is when intermittent wipe is selected.
    • RELEASED this is when the wiper is in normal mode.
    • WASH WIPE this is when the wiper is wiping in a timed mode in response to usage of the screen washer.
  • Front wash: This denotes if the CCU has detected that the front washers are being used or not.
  • Front wiper intermittent: This shows the status of the front wiper intermittent switch input to the CCU.
  • Front wiper park: This shows the status of the front wiper park switch.
  • Wash wipe speed: This shows the stored value for the intermittent wiper value in a range of 0 to 255.
  • Headlights : This denotes if the CCU has detected that the head lamps are ON or OFF.
  • Front fog lights: This denotes if the CCU has detected that the Front Fog Lights are ON or OFF.
  • Sidelamps: This denotes if the CCU has detected that the Side lights are ON or OFF. To determine this the CCU is connected to the Right Hand Side light circuit only.
  • Tail fog lights: This shows the Status of the Tail Fog light input.
  • Tail window heater: This shows the status of the tail window heater switch.
  • Reverse gear: This shows if the gearbox reverse switch is indicating that the vehicle is in reverse gear or not.
  • Oil pressure: This shows the status of the oil pressure input to the CCU as either LOW (Engine not running) or HIGH (engine running).
  • Inertia switch: This shows if the vehicles inertia switch has been TRIPPED or is SET.
  • Road speed: This shows the vehicles road speed in kilometres per hour.

SM024 - LUCAS 27VT CCU (FREELANDER) - Diagnostic Capabilities (Outputs)
A selection of functions and outputs that can be tested. Each output has the option ON and OFF in order to start and stop testing. CCU has control over the following features:

  • Doors and locking: Tests the door locks.
  • Windows: can be moved up and down - Caution: make sure that nothing obstructs the window.
  • Screen heater: can turn the heater on and off.
  • Wipers: Turns the wiper on and off - Caution: make sure that nothing obstructs the wiper.
  • Sounders: Tests all the sounders ( horn, internal warning buzzer, battery backed up sounder, door opening warning).
  • Instrument pack bulbs: Tests all the lamps and LEDs on the instrument pack.
  • Lights: Tests vehicles' lights.
  • Plip receiver power: Tests the radio frequency receiver.
  • Volumetric power: Tests the volumetric sensor.
  • Crank enable relay: This turns on the output for the crank enabling relay, which is controlled by the CCU as part of the Immobiliser. Energizing this relay alone does not cause the engine to start.

SM024 - LUCAS 27VT CCU (FREELANDER) - Diagnostic Capabilities (Other)
Choice of functions that can be performed.

  • Plip program learn mode): This allows the CCU to learn the codes of any PLIPS (Key fobs) which are required to be used with the vehicle. Usage of this function overwrites the codes of existing valid PLIPS requiring them to be re learnt at the same time if they are to continue to be used. When the Learn mode has been activated, it is required to press either the Lock or Unlock button on each PLIP in turn over 8 times until the vehicle gives a Beep through the Alarm sounder.
  • Plip receiver test: This test allows any PLIP (Key Fob) of the correct frequency to be used to Lock and Unlock the vehicle allowing correct operation of the RF receiver circuit to be verified.