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Multifunction Electronic Modules: Other Jaguar XF I

MODULE CONTROLLED FUNCTIONS

Refer to the relevant section for details of system operation.

MODULES, SYSTEMS AND FUNCTION

The central junction box (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 ring. The MOST ring 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.

ModuleNetwork SystemFunctionVehicle Location
Instrument clusterHigh speed controller area network (CAN) busReceives data from other vehicle systems to provide information to the driver. Also functions as the gateway for the bus systems.Instrument panel.
Steering columnHigh speed controller area network (CAN) busControls the locking and unlocking of the steering column.Upper steering column.
Diagnostic socketHigh speed controller area network (CAN) busAllows the transfer of vehicle information using a Jaguar approved diagnostic system or other diagnostic tool.In the lower instrument panel on the driver's side, adjacent to the start control module.
Restraints control module (RCM)High speed controller area network (CAN) busControls the deployment of the supplementary restraint components.At rear of floor console.
Transmission control module (TCM)High speed controller area network (CAN) busControls automatic transmission operation.Inside the transmission and accessible via the fluid pan.
Engine control module (ECM)High speed controller area network (CAN) busControls engine management and fuel system operation.Rear of the engine compartment on the bulkhead.
Anti-lock brake system (ABS)High speed controller area network (CAN) busControls all aspects of the braking systemRear of the engine compartment on the bulkhead.
Headlamp leveling moduleHigh speed controller area network (CAN) busControls the static dynamic headlamp leveling function.In the lower instrument panel, behind the glovebox.
Occupant classification system control module (NAS only)High speed controller area network (CAN) busDetects when a passenger is in the front passenger seat and can determine their size and weight.Below the front passenger seat.
Adaptive damping control moduleHigh speed controller area network (CAN) busControls the adjustment of the dampers.Below the front passenger seat.
Electronic Parking Brake (EPB) moduleHigh speed controller area network (CAN) busControls the application and release of the electronic parking brake.In the luggage compartment, above the right-hand (RH) wheel arch.
Pedestrian protection moduleHigh speed controller area network (CAN) busControls and monitors the pedestrian protection system.Left-hand (LH) 'A' pillar.
Adaptive speed control moduleHigh speed controller area network (CAN) busControls the vehicle's road speed in relation to other vehicles when in speed control mode.Behind the instrument panel on the driver's side.
Electronic transmission selectorHigh speed controller area network (CAN) busAllows the driver to electronically select the required automatic transmission mode. Transmits driver selections to the transmission control module (TCM).In the floor console.
Jaguar Drive control moduleHigh speed controller area network (CAN) busControls the Jaguar Drive function and communicates with other system modules.Integral with the electronic transmission selector software in the floor console.
Central junction box (CJB)Medium speed controller area network (CAN) busControls body functions and power distribution.On right-hand (RH) 'A' pillar.
Diagnostic socketMedium speed controller area network (CAN) busAllows the transfer of vehicle information using a Jaguar approved diagnostic system or other diagnostic tool.In the lower instrument panel on the driver's side, adjacent to the start control module.
Passenger door moduleMedium speed controller area network (CAN) busControls window and locking functions.In the front passenger door.
Parking aid moduleMedium speed controller area network (CAN) busControls the parking aid system.In the left-hand (LH) side of the luggage compartment, adjacent to the keyless vehicle module.
Driver's seat moduleMedium speed controller area network (CAN) busControls driver's seat positioning and also memory functions of other personalized functions.Below the driver's seat.
Instrument clusterMedium speed controller area network (CAN) busReceives data from other systems to provide driver information.In the instrument panel.
Driver's door moduleMedium speed controller area network (CAN) busControls window and locking functions.In the driver's door.
Automatic temperature control (ATC) moduleMedium speed controller area network (CAN) busContains controls for the heating and air conditioning systems.On the end of the air conditioning evaporator and blower assembly.
Information control moduleMedium speed controller area network (CAN) busContains controls for the entertainment systems.In the instrument panel below the integrated control panel.
Integrated control panelMedium speed controller area network (CAN) busContains controls for the entertainment systems and gateway between audio system and other vehicle systems.In the instrument panel.
Front seat climate control moduleMedium speed controller area network (CAN) busControls the temperature requirements of the driver and passenger front seats.Below the right-hand (RH) front seat.
Left-hand (LH) blind spot monitoring moduleMedium speed controller area network (CAN) busControls the operating parameters of the system and provides driver indications and fault monitoring.Behind the outer part of the rear bumper, rearward of the rear wheel.
Right-hand (RH) blind spot monitoring moduleMedium speed controller area network (CAN) busControls the operating parameters of the system and provides driver indications and fault monitoring.Behind the outer part of the rear bumper, rearward of the rear wheel.
Keyless vehicle moduleMedium speed controller area network (CAN) busAllows the vehicle to be opened and closed without the use of a key.In the left-hand (LH) side of the luggage compartment, adjacent to the parking aid module.
Rear junction box (RJB)Medium speed controller area network (CAN) busControls body functions and power distribution.Right-hand (RH) of luggage compartment.
Tire pressure monitoring control moduleMedium speed controller area network (CAN) busMonitors the vehicle tires to warn of deflation.Below the rear of the floor console.
Transmission control module (TCM)K BusData transfer between transmission control module (TCM) and diagnostic socket. NOTE: Only fitted to early build vehicles.Inside the transmission and accessible by removal of the fluid pan.
Driver's side rear door moduleLocal interconnect network (LIN)Controls window and locking operation.In the driver's side rear door.
Passenger side rear door moduleLocal interconnect network (LIN)Controls window and locking operation.In the passenger side rear door.
Driver's door moduleLocal interconnect network (LIN)Memory/adjustment functions for seat, steering column and mirrors and door security functions.In the driver's door.
Passenger front door moduleLocal interconnect network (LIN)Memory/adjustment functions for seat, steering column and mirrors and door security functions.In the passenger door.
Driver's door switchesLocal interconnect network (LIN)Transmit driver selections to the driver's door module.In the driver's door panel.
Engine control module (ECM)Local interconnect network (LIN)Receives a load signal from the generator.In the engine compartment on the bulkhead.
GeneratorLocal interconnect network (LIN)Provide load signal to the engine control module (ECM).On the left-hand (LH) side at the front of the engine.
Driver's seat moduleLocal interconnect network (LIN)Control position of driver's seat.Below the driver's seat on the floor pan.
Driver's seat switchesLocal interconnect network (LIN)Provide driver selection inputs to the driver's seat module.On the outside of the trim panel on the driver's seat.
Air quality sensorLocal interconnect network (LIN)Measures quality of air entering the vehicle interior.At the front of the vehicle, behind the air intake grill.
Windshield (defrost) stepper motorLocal interconnect network (LIN)Moves flaps within the heater assembly to direct air flow to the windshield.On the heater assembly.
Face/feet stepper motorLocal interconnect network (LIN)Moves flaps within the heater assembly to direct air flow to instrument panel vents and/or footwell.On the heater assembly.
Left-hand (LH) temperature blend stepper motorLocal interconnect network (LIN)Moves flaps within the heater assembly to control temperature in left-hand (LH) side footwell.On the heater assembly.
Right-hand (RH) temperature blend stepper motorLocal interconnect network (LIN)Moves flaps within the heater assembly to direct air flow to right-hand (RH) side footwell.On the heater assembly.
Electric booster heaterLocal interconnect network (LIN)Controls operation of the electric booster heater.Inside the heater assembly.
Left-hand (LH) outer face level ventLocal interconnect network (LIN)Controls the operation of the face level vent stepper motor.In the instrument panel.
Left-hand (LH) inner face level ventLocal interconnect network (LIN)Controls the operation of the face level vent stepper motor.In the instrument panel.
Right-hand (RH) inner face level ventLocal interconnect network (LIN)Controls operation of the face level vent stepper motor.In the instrument panel.
Right-hand (RH) outer face level ventLocal interconnect network (LIN)Controls operation of the face level vent stepper motor.In the instrument panel.
Automatic temperature control (ATC) moduleLocal interconnect network (LIN)Controls operation of the climate system functions.In the instrument panel.
Steering wheel audio switchesLocal interconnect network (LIN)Converts analogue signals from steering wheel switches into digital messages.On the steering wheel.
Steering wheel clockspringLocal interconnect network (LIN)Passes digital messages from the steering wheel audio switches to the instrument cluster.Behind the steering wheel, on the upper steering column.
Instrument clusterLocal interconnect network (LIN)Receives digital signals from other vehicle systems.On the driver's side of the instrument panel.
Battery backed sounderLocal interconnect network (LIN)Activated by central junction box (CJB) when alarm trigger is received.In the left-hand (LH) side of the engine compartment, near the bulkhead.
Central junction box (CJB)Local interconnect network (LIN)Controls body functions and power distribution.On the right-hand (RH) 'A' pillar.
Rear junction box (RJB)Local interconnect network (LIN)Controls body functions and power distribution.On the right-hand (RH) of the luggage compartment.
Battery monitoring system moduleLocal interconnect network (LIN)Monitors the condition and charge of the vehicle battery.On the vehicle battery positive terminal in the luggage compartment.
Intrusion detection moduleLocal interconnect network (LIN)Detects movement in the vehicle interior and activates the anti-theft system.In the front overhead console.
Rain/light sensorLocal interconnect network (LIN)Detects ambient light levels and moisture on the windscreen for operation of the automatic headlamps and wiper systems.On the inside of the windshield behind the interior rear view mirror.
Start control moduleLocal interconnect network (LIN)Used to identify the Smart Key - component of the keyless start system.In the lower instrument panel on the driver's side.
Rear view cameraLocal interconnect network (LIN)Passes digital images data from the rear view camera to the rear junction box (RJB)In the luggage compartment lid trim finisher.
Driver's window switchLocal interconnect network (LIN)Controls operation of the driver's window.In the driver's door trim panel.
Electronic transmission selectorLocal interconnect network (LIN)Sends selector position to the transmission control module (TCM).In the floor console.
Transmission control module (TCM)Local interconnect network (LIN)Receives selector position information to control the transmission.Inside the transmission and accessible by removal of the fluid pan.
Information control moduleMedia Oriented System Transport (MOST)Contains controls for the entertainment system and gateway between audio system and other vehicle systems.In the instrument panel below the integrated control panel.
Integrated control panelMOSTContains controls for the entertainment system.In the instrument panel.
Digital Audio Broadcast (DAB) receiver (SDARS NAS only)MOSTReceives digital radio broadcasts.In the left-hand (LH) side of the luggage compartment, above the keyless vehicle module.
Bluetooth® phone moduleMOSTControls operation of the Bluetooth® phone system.Below the left-hand (LH) front seat, adjacent to the portable audio module.
Amplifier/tunerMOSTProvides amplification for the entertainment systems and reception of radio RF broadcasts.In the left-hand (LH) side of the luggage compartment.
Navigation computerMOSTReads map data from a digital versatile disc (DVD) to calculate and display visual route guidance information via the TSD and audible guidance via the amplifier to the driver.In the left-hand (LH) side of the luggage compartment.
Touch Screen Display (TSD)MOSTProvides the driver interface to the entertainment, navigation and driver personalization functions.In the center of the instrument panel.
TV tunerMOSTControls the reception of television signals and audio/visual inputs.In the left-hand (LH) side of the luggage compartment.
Portable Audio ModuleMOSTControls the auxiliary inputs for additional audio inputs via the portable audio interface.Below the left-hand (LH) front seat, adjacent to the Bluetooth® phone module.
MOST diagnostic connectorMOSTAllows for diagnostic fault detection of the MOST ring.Below the air ducting in the floor console.

Refer to Communications Network section for further details. Refer to Communications Network information.