
systems.
A typical example of information transfer is vehicle speed information from the ABS (anti-lock brake system) module used to
control the automatic volume control function. The vehicle speed information from the ABS module is sent on the high speed
CAN network and collected by the instrument panel gateway. The signal is passed to the medium speed CAN network and onto the ICM gateway. The ICM calculates the volume adjustment required. The corrected audio volume level signal is sent on the
MOST network to the IAM or Power amplifier (dependant on vehicle equipment level) for output to the speaker system.
AUDIO SYSTEM USER CONTROLS
Touch-Screen
Item Description 1 Touch-screen 2 Home menu button 3 Touch-screen on/off button The Touch-screen forms the basis of the audio system. It communicates with the rest of the audio/infotainment system on the
MOST ring and allows control of the audio system and other infotainment systems from a single point.
The Touch-screen communicates with the IAM on the MOST ring and provides the primary user interface and display of the
audio system controls. No configuration procedure is required if the touch-screen is replaced.
Calibration of the Touch-screen using the Jaguar approved diagnostic equipment enables updates to be downloaded as new
technology becomes available or any fault concerns require software updates.
The touch-screen provides user control of the following systems:
System Functions Audio Radio display AM/FM or DAB, auxiliary and portable audio, digital TV or CD (compact disc) Climate
control Air conditioning, distribution, seats, heated steering wheel, automatic air recirculation Telephone Digit dialer, phone book, last ten calls (made, received, missed) Navigation Destination, stored locations, navigation setup, route options Vehicle
Security, parking, valet mode, trip computer, clock, brightness, contrast, system settings, vehicle settings, display settings

Published: 11-May-2011
Daytime Running Lamps (DRL) - Daytime Running Lamps (DRL) - System
Operation and Component Description
Description and Operation
CENTRAL JUNCTION BOX (CJB) System Operation
The CJB (central junction box) controls the operation of the DRL (daytime running lamps). The DRL are activated once the CJB detects an ignition on power mode 6 signal.
The CJB also monitors the lighting control switch and the auto lamps feature and overrides the DRL if required.
DAYTIME RUNNING LAMPS - CANADA Component Description
The DRL for this market use full intensity low beam headlamps. The side marker lamps, tail lamps and license plate lamps will be on, but instrument cluster illumination will be off. DRL are active when the following parameters are met:
PARK is not selected on the electronic transmission selector
Electronic Parking Brake (EPB) is off
Power mode 6 (ignition on) detected by the CJB The CJB receives an engine running signal The lighting control switch is in the off or side lamps position.
NOTES:
If the lighting control switch is moved to the headlamp position, DRL are deactivated and normal side lamp and headlamp functionality is operational.
When DRL are active, the headlamp flash function using the left hand steering column multifunction switch will operate normally.
The high beam headlamp function using the left hand steering column stalk switch will be deactivated. When the transmission
is in PARK, DRL are turned off. This is to reduce battery discharge during long periods of engine idling in cold climate conditions. When the electronic transmission selector is moved from the PARK position, normal DRL functionality is restored.
DAYTIME RUNNING LAMPS - DENMARK, HOLLAND, NORWAY, SWEDEN, FINLAND AND POLAND
NOTE: DRL for Poland is on vehicles from 2008MY.
DRL for these markets use full intensity low beam headlamps. Side lamps and license plate lamps will be on, but instrument cluster illumination will be off. DRL are active when the following parameters are met:
Power mode 6 (ignition on) detected by the CJB The CJB receives an engine running signal The lighting control switch is in the off position.
NOTE: When DRL are active, the headlamp flash function using the left hand steering column multifunction switch will operate normally. The high beam headlamp function using the left hand steering column stalk switch will be deactivated.
If the lighting control switch is moved to the side lamp or headlamp positions, DRL are deactivated and normal side lamp and headlamp functionality is operational.
AUTOMATIC HEADLAMPS
On vehicles fitted with the automatic headlamps feature, DRL are overridden if the lighting control switch is in the 'Auto' position and the CJB receives a signal from the rain/light sensor to activate the exterior lights.
When the CJB receives a signal to de-activate the automatic headlamps feature the DRL function is restored providing the parameters for DRL activation are met.

PINPOINT TEST B : MAP DISC WILL NOT INSERT/EJECT
NOTE: Ensure the parking brake is applied, and ignition status is set to Auxiliary or ON. TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: CHECK NAVIGATION DISC SLOT SHUTTER 1 Check the navigation map disc slot shutter is open. Is the navigation map disc slot shutter is open? Yes
GO to B2. No
Open the map disc slot shutter.
GO to B2. B2: CHECK NAVIGATION MAP DISC WILL INSERT/EJECT 1 Check that it is possible to insert/eject navigation map disc. Is it possible to insert/eject navigation map disc? Yes
Operation is normal.
No
Refer to the electrical circuit diagrams and check power supply and ground connections to the Navigation
Control Module (NCM). If power supply and ground connections are good, install a new Navigation Control
Module (NCM) as required. Refer to the new module/component installation note at top of DTC Index.
PINPOINT TEST C : BLACK SCREEN (NAVIGATION MAP SCREEN DOES NOT DISPLAY)
NOTE: Ensure the parking brake is applied, and ignition status is set to Auxiliary or ON. TEST
CONDITIONS DETAILS/RESULTS/ACTIONS C1: CHECK SCREEN SAVER FUNCTION 1 Check the screen saver function operation. Does the screen saver function operate? Yes
Press the display panel button.GO to C2. No
GO to C2. C2: CHECK DISPLAY BACKLIGHT 1 Check the display backlight operation. Does the display backlight operate? Yes
Refer to the electrical circuit diagrams and check the GVIF cable between Navigation Control Module
(NCM) and HLDF screen is properly connected.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected, check
and install a new GVIF cable as required. Refer to the new module/component installation note at top of
DTC Index.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected and
NOT damaged, check and install a new Navigation Control Module (NCM) as required. Refer to the new
module/component installation note at top of DTC Index.
Re-check the system.
No
Check the HLDF display.
Re-check the system.
PINPOINT TEST D : NAVIGATION MAP SCREEN COLOUR IS ABNORMAL TEST
CONDITIONS DETAILS/RESULTS/ACTIONS D1: COLOUR BAR CHECK 1 Carry out the display diagnostics 'colour bar check' (PIN code 660). Are the results of the display diagnostics 'colour bar check' normal? Yes
Check the HLDF display.
Re-check the system.
No
Check the condition of the map disc for dirt or scratches.
Refer to the electrical circuit diagrams and check the GVIF cable between Navigation Control Module
(NCM) and HLDF screen is properly connected.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected, check
and install a new GVIF cable as required. Refer to the new module/component installation note at top of
DTC Index.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected and
NOT damaged, check and install a new Navigation Control Module (NCM) as required. Refer to the new

Tire Pressure Monitoring System (TPMS) control module 15 Entertainment system control module 16 Climate seat module COMPONENT LOCATION - HIGH SPEED CAN BUS
Item Description NOTE: LHD vehicle shown 1 ECM - V8 shown 2 Headlamp leveling control module 3 Occupant classification system control module 4 Adaptive damping control module 5 Instrument cluster 6 Electronic transmission selector 7 Electronic Parking Brake (EPB) module 8 RCM (restraints control module)

Instrument cluster
High speed CAN
(controller area network) bus Receives data from other vehicle systems to provide
information to the driver. Also functions as the gateway for the bus systems. Instrument panel. Steering column
High speed CAN bus Controls the locking and unlocking of the steering
column. Upper steering column. Diagnostic socket
High speed CAN bus Allows 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. RCM (restraints control module) High speed CAN bus Controls the deployment of the supplementary
restraint components. At rear of floor console. TCM (transmission
control module) High speed CAN bus Controls automatic transmission operation.
Inside the transmission and
accessible via the fluid pan. ECM (engine control
module) High speed CAN bus Controls engine management and fuel system
operation. Rear of the engine
compartment on the
bulkhead. ABS (anti-lock brake
system) High speed CAN bus Controls all aspects of the braking system
Rear of the engine
compartment on the
bulkhead. Headlamp leveling
module High speed CAN bus Controls the static dynamic headlamp leveling
function. In the lower instrument panel, behind the glovebox. Occupant classification
system control module (NAS only) High speed CAN bus Detects when a passenger is in the front passenger
seat and can determine their size and weight. Below the front passenger
seat. Adaptive damping
control module High speed CAN bus Controls the adjustment of the dampers.
Below the front passenger
seat. Electronic Parking Brake
(EPB) module High speed CAN bus Controls the application and release of the electronic
parking brake. In the luggage compartment,
above the RH (right-hand)
wheel arch. Pedestrian protection
module High speed CAN bus Controls and monitors the pedestrian protection system. LH (left-hand) 'A' pillar. Adaptive speed control
module High speed CAN bus Controls 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
selector High speed CAN bus Allows the driver to electronically select the required
automatic transmission mode. Transmits driver
selections to the TCM. In the floor console. Jaguar Drive control
module High speed CAN bus Controls the Jaguar Drive function and communicates
with other system modules. Integral with the electronic
transmission selector
software in the floor console. CJB
Medium speed CAN bus Controls body functions and power distribution. On RH 'A' pillar. Diagnostic socket
Medium speed CAN bus Allows 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 module
Medium speed CAN bus Controls window and locking functions. In the front passenger door. Parking aid module
Medium speed CAN bus Controls the parking aid system.
In the LH side of the luggage compartment, adjacent to
the keyless vehicle module. www.JagDocs.com