rjb JAGUAR XFR 2010 1.G Owner's Guide

Touch screen display (TSD) 6 Integrated control panel 7 Information control module 8 ATC (automatic temperature control) module 9 Face/Feet distribution stepper motor 10 RH (right-hand) temperature blend stepper motor 11 LH (left-hand) temperature blend stepper motor 12 Windshield (defrost) distribution stepper motor 13 Blower control module 14 RJB (rear junction box) 15 Blower
System Operation
Operation of the heating and ventilation system is controlled by the ATC module. Refer to: Control Components (412-01 Climate Control, Description and Operation).
The system can be operated in automatic or manual mode, with temperature settings selected using the switches on the
integrated control panel.

When the engine is running, coolant is constantly circulated through the heater core by the engine coolant pump and the
auxiliary coolant pump. Where fitted, the auxiliary coolant pump is energized by the CJB on receipt of medium speed CAN bus signals from the ATC module. The CJB broadcasts auxiliary coolant pump status over the medium speed CAN bus for use by other vehicle systems.

The blower is supplied with power by the blower relay on the RJB and connected to ground via the blower control module. The blower control module regulates the voltage across the blower motor to control blower speed. The voltage set by the blower
control module is controlled by a PWM (pulse width modulation) signal from the ATC module. The ATC module uses a feedback signal from the blower control module to monitor blower speed.
Refer to: Control Components (412-01 Climate Control, Description and Operation).


Heater Assembly Component Description

The heater assembly controls the temperature and flow of air supplied to the air distribution ducts. The heater assembly is
mounted on the vehicle centerline, between the instrument panel and the engine bulkhead.

The heater assembly consists of a casing that contains an A/C (air conditioning) evaporator, a heater core, two air distribution
control doors and two temperature blend control doors. On 2.7L diesel vehicles, the heater assembly also contains an electric
booster heater.
Refer to: Electric Booster Heater (412-02 Auxiliary Climate Control, Description and Operation).
Mounted on the heater casing are four stepper motors. Each of the stepper motors is connected to either an air distribution
control door or a temperature blend control door.
The A/C evaporator is part of the A/C system. Refer to: Air Conditioning (412-01 Climate Control, Description and Operation).
The heater core provides the heat source to warm the air supplied to the passenger compartment. The heater core is an
aluminum two pass, fin and tube heat exchanger, and is installed across the width of the heater housing. Two aluminum tubes
attached to the heater core extend through the engine bulkhead and connect to the engine cooling system. For additional
information, refer to:
Engine Cooling (303-03A, Description and Operation),
Engine Cooling (303-03B Engine Cooling - V6 3.0L Petrol, Description and Operation), Engine Cooling (303-03C, Description and Operation).

Air Inlet Duct

The air inlet duct connects the fresh air inlet in the engine bulkhead to the heater assembly. The air inlet duct is installed
behind the instrument panel on the passenger side.

The air inlet duct consists of a casing that contains a pollen filter, an air inlet door, a blower and a blower control module. A
recirculation air inlet is incorporated into the casing. A servo motor is mounted on the casing and connected to the air inlet
door, to allow selection between fresh and recirculated air.
Refer to: Control Components (412-01 Climate Control, Description and Operation). The pollen filter is part of the air distribution and filtering system.
Refer to: Air Distribution and Filtering (412-01 Climate Control, Description and Operation).
The blower regulates the volume of air flowing through the air inlet duct to the heater assembly. The blower consists of an
open hub, centrifugal fan and an electric motor.
The blower control module regulates the power supply to the blower motor. The blower control module is installed in the air

6 TSD (touch screen display) 7 Integrated control panel 8 Evaporator temperature sensor 9 Humidity and temperature sensor 10 Sunload sensor 11 Refrigerant pressure sensor 12 Pollution sensor Comments:
where fitted 13 Air inlet servo motor 14 A/C (air conditioning) compressor solenoid valve 15 RH (right-hand) outer face level register 16 RH inner face level register 17 LH (left-hand) inner face level register 18 LH outer face level register 19 RH temperature blend stepper motor 20 Face/Feet distribution stepper motor 21 ATC (automatic temperature control) module 22 LH temperature blend stepper motor 23 Windshield (Defrost) stepper motor 24 Blower control module 25 RJB (rear junction box) 26 Blower


Air Inlet Control System Operation

The source of inlet air is automatically controlled unless overridden by pressing the air recirculation switch on the integrated
control panel. During automatic control, the ATC module determines the required position of the recirculation door from its 'comfort' algorithm and, if fitted, the pollution sensor.

The ATC module provides analogue signals to the air inlet servo motor along a hardwired connection. A potentiometer in the motor supplies the ATC module with a position feedback signal for closed loop control.
Air Temperature Control

Cooled air from the evaporator enters the heater assembly, where temperature blend doors direct a proportion of the air
through the heater core to produce the required output air temperature.

The two temperature blend doors operate independently to enable individual temperature settings for the left and right sides
of the passenger compartment. The temperature blend doors are operated by stepper motors, which are controlled by the ATC module using LIN bus messages.
The ATC module calculates the temperature blend stepper motor positions required to achieve the selected temperature and compares it against the current position. If there is any difference, the ATC module signals the stepper motors to adopt the new position.

Air temperature is controlled automatically unless maximum heating (HI) or maximum cooling (LO) is selected. When maximum
heating or cooling is selected, a 'comfort' algorithm in the ATC module adopts an appropriate strategy for air distribution, blower speed, and air source.

Temperature control in one side of the passenger compartment can be compromised by the other side of the passenger
compartment being set to a high level of heating or cooling. True maximum heating or cooling (displayed as 'HI' or 'LO' on the
TSD) can only be selected for the driver's side of the passenger compartment. If 'HI' or 'LO' is selected for the driver's side, the
temperature for the front passenger's side is automatically set to match the driver's side.

If A/C is selected off in the automatic mode, no cooling of the inlet air will take place. The minimum output air temperature from the system will be ambient air temperature plus any heat pick up in the air inlet path.

If the Temp. sync. soft button on the TSD is pressed, the ATC module synchronizes the temperature of the passenger side of the passenger compartment with the driver's side.

Blower Control

When the system is in the automatic mode, the ATC module determines the blower speed required from a comfort algorithm. When the system is in the manual mode, the ATC module operates the blower at the speed selected using either the rotary

control switch on the integrated control panel or the + and - soft buttons on the touch screen display (TSD). The ATC module also adjusts blower speed to compensate for the ram effect on inlet air produced by forward movement of the vehicle. As
vehicle speed and ram effect increases, blower motor speed is reduced, and vice versa.

Air Distribution Control

Two air distribution doors are used to direct air into the passenger compartment. The doors are operated by stepper motors,
which are controlled by the ATC module using LIN bus messages.
When the A/C system is in automatic mode, the ATC module automatically controls air distribution into the passenger compartment in line with its 'comfort' algorithm. Automatic control is overridden if any of the TSD air distribution soft buttons
are selected. Air distribution in the passenger compartment will remain as selected until the 'Auto' switch is pressed or a
different manual selection is made.

A/C Compressor Control

When A/C is selected the ATC module maintains the evaporator at an operating temperature that varies with the passenger compartment cooling requirements. If the requirement for cooled air decreases, the ATC module raises the evaporator operating temperature by reducing the flow of refrigerant provided by the A/C compressor. The ATC module closely controls the rate of temperature increase to avoid introducing moisture into the passenger compartment.

If the requirement for cooled air increases, the ATC module lowers the evaporator operating temperature by increasing the flow of refrigerant provided by the A/C compressor.
When A/C is off, the compressor current signal supplied by the ATC module holds the A/C compressor solenoid valve in the minimum flow position, effectively switching off the A/C function.
The ATC module incorporates limits for the operating pressure of the refrigerant system. If the system approaches the high pressure limit, the compressor current signal is progressively reduced until the system pressure decreases. If the system falls
below the low pressure limit, the compressor current signal is held at its lowest setting so that the A/C compressor is maintained at its minimum stroke. This avoids depletion of the lubricant from the A/C compressor.
A/C Compressor Torque

The ATC module transmits refrigerant pressure and A/C compressor current values to the ECM (engine control module) over the medium speed then high speed CAN bus, using the CJB as a gateway. The ECM uses these values to calculate the torque being used to drive the A/C compressor. The ECM compares the calculated value with its allowable value and if necessary forces the ATC module to inhibit the A/C compressor by transmitting the 'ACClutchInhibit' CAN message. This forces the ATC module to reduce the drive current to the A/C compressor solenoid valve, which reduces refrigerant flow. This in turn reduces the torque required to drive the A/C compressor.
By reducing the maximum A/C compressor torque, the ECM is able to reduce the load on the engine when it needs to maintain vehicle performance or cooling system integrity.

Cooling Fan Control

The ATC module determines the amount of condenser cooling required from the refrigerant pressure sensor, since there is a direct relationship between the temperature and pressure of the refrigerant. The cooling requirement is broadcast to the ECM on the medium speed CAN bus. The ECM then controls the temperature of the condenser using the cooling fan.
Programmed Defrost

The programmed defrost DEF switch is located on the integrated control panel. When the switch is pressed, the ATC module instigates the programmed defrost function. When selected, the ATC module configures the system as follows:
Automatic mode off.
A/C on. Selected temperature unchanged.
Air inlet set to fresh air.
Air distribution set to windshield.
Blower speed set to level 6.
Windshield heater (where fitted) and rear window heater on.
The programmed defrost function can be cancelled by one of the following:
Selecting any air distribution switch on the TSD.
Pressing the AUTO switch on the integrated control panel.
A second press of the DEF button.
Switching the ignition OFF.
The blower speed can be adjusted without terminating the programmed defrost function.

Rear Window Heater

Rear window heater operation is only enabled when the engine is running. The ATC module controls operation of the rear window heater using a relay in the RJB. When rear window heater operation is required, the ATC module broadcasts a message to the RJB on the medium speed CAN bus. On receipt of the message, the RJB energizes the relay by providing a ground path for the relay coil. This allows a battery feed to flow across the relay to power the rear window heater element.

The functionality for each of the above warning indicators is described in the following sections:

1 and 2. Turn Signal Indicators
The turn signal indicators are controlled by the CJB on receipt of medium speed CAN bus signals from the instrument cluster.
The instrument cluster outputs a voltage to the turn signal indicator switch. The switch contains resistors of different values.
When the switch is operated in either the LH or RH direction, the voltage is passed to a ground connection in the instrument cluster which detects the reduced voltage supplied via the resistors. When the turn signal indicator switch is operated in the
LH or RH direction, the instrument cluster detects the ground voltage and determines whether a LH or RH selection is made.
The instrument cluster transmits a medium speed CAN message to the CJB for operation of the applicable turn signal indicators. The message can contain a number of states for each possible switch position and also an out of range low and
high state for circuit faults and an initial value for the switch neutral position. The turn signal indicators are not subject to the
3 second indicator check when the ignition is switched on.

The RJB (rear junction box) software controls the flash rate of the warning indicator which sends 'ON' and 'OFF' signals to the
instrument cluster which flashes the indicators in a green color. During normal operation, the warning indicator flashes slowly,
accompanied simultaneously by a sound from the instrument cluster sounder. If a fault exists, the RJB transmits a message to the instrument cluster which responds by displaying an appropriate message in the message center.

The hazard warning indicators are controlled by the CJB on receipt of a completed ground path from the hazard warning indicator switch. The CJB outputs a medium speed CAN message to the instrument cluster which operates both the LH and RH turn signal indicators simultaneously. The hazard warning indicators can operate with the ignition switched off, therefore the
CAN message from the CJB will also carry a 'wake-up' message for the instrument cluster. 3. Brake Warning Indicator

This warning indicator is displayed in a red or amber color (dependant on market) as a brake symbol in all markets except
United States of America (USA) which have the word 'BRAKE' in place of the symbol. The indicator is controlled by high speed
CAN messages from the ABS module and the parking brake control module. The indicator is illuminated in a red color for a 3 second indicator check when the ignition is switched on.

The instrument cluster monitors the fluid level in the brake fluid reservoir using a hardwired level switch. If the fluid level falls
to below a determined level, the switch contact is broken and the ABS module detects the low fluid level condition. The instrument cluster illuminates the warning indicator and simultaneously displays a 'BRAKE FLUID LOW' message in the
message center.


NOTE: If both the brake warning indicator and the ABS warning indicator illuminate simultaneously, a major fault in the brake system will have occurred.

The warning indicator also displays parking brake status. When the parking brake is applied, the warning indicator will be
illuminated by the instrument cluster and, if the vehicle is moving, the message 'PARK BRAKE APPLIED' will be also displayed
in the message center in response to a CAN message from the parking brake control module.
If a condition exists where the parking brake cannot be applied, the parking brake control module issues a CAN message to the instrument cluster which flashes the warning lamp on and off and is accompanied with a message 'CANNOT APPLY PARK BRAKE'.
If a fault occurs in the parking brake system, the parking brake control module issues a CAN message to the instrument cluster which illuminates the warning indicator and displays the message 'PARK BRAKE FAULT' in the message
center.
4. Forward Alert Indicator

The forward alert system uses the components of the adaptive speed control system to alert the driver of the presence of a
vehicle ahead. The system can be turned on and off using a switch located in the auxiliary lighting switch when the adaptive
speed control system is off. The indicator is illuminated in an amber color for a 3 second indicator check when the ignition is
switched on.

The forward alert system is controlled by the adaptive speed control module. When the switch is pressed, the forward alert
system is activated and the adaptive speed control module issues a forward alert active message on the high speed CAN bus to the instrument cluster. The forward alert icon in the instrument cluster will illuminate in an amber color and a 'FORWARD
ALERT' message will be displayed in the message center. When the button is pressed a second time, the module issues a
forward alert off CAN message. The forward alert system will be deactivated, the forward alert icon will go off and a message 'FORWARD ALERT OFF' will be displayed in the message center.
5. Automatic Speed Limiter (ASL) Indicator

The ASL is controlled by the ECM (engine control module). An ASL switch is located in the floor console, adjacent to the gear
selector lever. When the ASL switch is pressed, this is sensed by the ECM which issues a high speed CAN message to the instrument cluster. The instrument cluster illuminates the ASL warning indicator in an amber color to show the driver that ASL
is active. The driver sets the required speed using the speed control SET +/- switches on the steering wheel. The selected
speed is shown by the message ' LIMITER SET XXX MPH / K/MH' in the message center. The indicator is illuminated in an
amber color for a 3 second indicator check when the ignition is switched on. ASL can be deselected by pressing the ASL switch,
by depressing the throttle pedal initiating kick-down or by pressing the 'cancel' switch on the steering wheel. The ASL indicator
will go off and the message center will display the message 'limiter cancelled' for 4 seconds. If a fault occurs in the ASL
system, the ECM will send a message to the instrument cluster to illuminate the ASL indicator and display the message 'LIMITER NOT AVAILABLE'.

the RCM and illuminated by the instrument cluster on receipt of high speed CAN bus messages. The safety belt warning indicator is not subject to the 3 second indicator check when the ignition is switched on.

The operation of the passenger seat buckle switch is as described below with the exception that the instrument cluster must
receive a hardwired signal from the belt minder control module to indicate that a passenger is occupying the seat.
The safety belt warning indicator is subject to a timer. The warning indicator is activated when the following conditions exist:
Ignition is switched on
One of the front seat belts is unbuckled
USA market only - 75 seconds has elapsed after ignition on mode is selected
Vehicle is not in reverse gear
Vehicle speed is more than 8 km/h (5 mph).

Once the above parameters are met, the instrument cluster flashes the warning indicator at 2 Hz for 10 seconds accompanied
by a simultaneous chime. After 10 seconds the chime ceases and the warning indicator is permanently illuminated for 20
seconds. This sequence is repeated every 30 seconds until one of the following events occurs:
300 seconds has elapsed
The safety belt of the occupied front seats is fastened
The ignition is switched to off mode
The vehicle speed decreases to below 5 km/h (3 mph).


NOTE: On USA market vehicles, the warning indicator in not permanently illuminated.

The safety belt minder function cannot be disabled. The seat belt minder function can be disabled.
Refer to: Safety Belt System (501-20A Safety Belt System, Description and Operation). 14. Side Lamp Indicator

The instrument cluster controls the green colored side lamp indicator on receipt of a side lamp status message on the medium
speed CAN bus from the CJB and the auxiliary junction box. The lighting switch on the LH steering column multifunction switch is connected to the instrument cluster. Selections using this switch are detected by the cluster which requests the side or
headlamp operation via a message to the CJB and the RJB. The CJB and the RJB responds with a side lamp active message and the cluster illuminates the side lamp indicator. The side lamp indicator is not subject to the 3 second indicator check when
the ignition is switched on.
15. High Beam Indicator

The instrument cluster controls the blue colored high beam indicator on receipt of a high beam status message on the medium
speed CAN bus from the CJB. The lighting switch on the LH steering column multifunction switch is connected to the instrument cluster. High beam or flash selections using this switch are detected by the cluster which requests the light
operation via a CAN message to the CJB. The CJB responds with a high beam active message and the cluster illuminates the high beam indicator. The high beam indicator is not subject to the 3 second indicator check when the ignition is switched on.
16. Rear Fog Lamp Indicator

The amber colored rear fog lamp indicator is controlled by the auxiliary junction box and illuminated by the instrument cluster
on receipt of a rear fog lamp on message on the medium speed CAN bus from the RJB. The indicator is illuminated for as long as the rear fog lamps are active. The rear fog lamp indicator is not subject to the 3 second indicator check when the ignition is
switched on.

SPEEDOMETER

The speedometer is driven by high speed CAN signals transmitted by the ABS module. The wheel speeds are measured by sensors reading the rotational speed of the rear wheels from toothed targets on the hubs. An average of the two wheel speeds
are passed from the sensors to the ABS module in the form of pulsed signals. The ABS module converts these signals into a speed output on the high speed CAN to the instrument cluster. The same speed outputs from the wheel speed sensors are also used to calculate the distance the vehicle has travelled.

TACHOMETER

The tachometer is driven by an engine speed signal transmitted on the high speed CAN from the ECM. The signal is derived from the CKP (crankshaft position) sensor. The signal is received by the instrument cluster microprocessor and the output from
the microprocessor drives the tachometer.

FUEL GAGE

The fuel gage is controlled by CAN messages from the RJB. The RJB reads the values output by the fuel level sensors every 131 ms and transmits a fuel tank contents value, corrected for battery voltage, in a CAN message to the instrument cluster. A fuel pump symbol is displayed to the left of the linear gage. An arrow above the symbol shows the driver on which side of the
vehicle the fuel filler cap is located. Above the linear fuel gage, is a LCD (liquid crystal display) area which displays odometer
and trip readouts. When a trip computer function is selected, these are replaced by a trip computer display for the trip function
selected.

LIQUID CRYSTAL DISPLAY

In the area above and below the message center is a LCD display. The area below the message center displays a linear fuel www.JagDocs.com

DTC Description Possible Cause Action B100962
Ignition
Authorisation
LS CAN fault
CJB ignition, power and
ground supply circuits - short,
open circuit
Instrument cluster power and
ground supply circuits - short,
open circuit
Incorrect CJB or instrument
cluster installed
Target SID synchronization
error following re-programming
Noise/EMC related error Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check CAN
communications between CJB and instrument cluster. Refer
to the electrical circuit diagrams and check CJB ignition,
power and ground supply circuits for short, open circuit and
instrument cluster power and ground supply circuits for short,
open circuit. Check correct CJB and instrument cluster
installed. Perform the Immobilisation application from the
Set-up menu using the manufacturer approved diagnostic
system. Check CAN network for interference/EMC related
issues B100987
Ignition
Authorisation
CJB ignition, power and
ground supply circuits - short,
open circuit
LS CAN fault
Instrument cluster power and
ground supply circuits - short,
open circuit
Low battery voltage <9 volts Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check CJB ignition, power and
ground supply circuits for short, open circuit and instrument
cluster power and ground supply circuits for short, open
circuit. Check CAN communications between CJB and
instrument cluster. Check battery is in serviceable condition
and fully charged B100A62
Fuel Pump
Authorisation
LS CAN fault
RJB power and ground supply
circuits - short, open circuit
Instrument cluster power and
ground supply circuits - short,
open circuit
Incorrect RJB or instrument
cluster installed
Target SID synchronization
error following re-programming
Noise/EMC related error Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check CAN
communications between RJB and instrument cluster. Refer
to the electrical circuit diagrams and check RJB power and
ground supply circuits for short, open circuit and instrument
cluster power and ground supply circuits for short, open
circuit. Check correct RJB and instrument cluster installed.
Perform the Immobilisation application from the Set-up menu
using the manufacturer approved diagnostic system. Check
CAN network for interference/EMC related issues B100A64
Fuel Pump
Authorisation
Target SID synchronization
error following re-programming
RJB power and ground supply
circuits - short, open circuit
LS CAN fault Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Perform the
Immobilisation application from the Set-up menu using the
manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit. Check CAN
communications between RJB and instrument cluster B100A87
Fuel Pump
Authorisation
RJB power and ground supply
circuits - short, open circuit
LS CAN fault
Instrument cluster power and
ground supply circuits - short,
open circuit
Low battery voltage <9 volts Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit and instrument cluster
power and ground supply circuits for short, open circuit.
Check CAN communications between RJB and instrument
cluster. Check battery is in serviceable condition and fully
charged B100B67
Column Lock
Ground
Authorisation
Algorithm based failure-signal
is incorrect after the event
Instrument cluster power and
ground supply circuits - short,
open circuit
LS CAN fault
RJB power and ground supply
circuits - short, open circuit
Vehicle speed present when
attempting to power ESCL
Engine speed present when
attempting to power ESCL
PowerMode status > 4 when
attempting to perform lock
action If a non start issue has not been identified, clear the DTC
and check vehicle starts correctly. If a non start issue has
been identified run the manufacturers approved diagnostic
system Start Authorisation Application. Carry out any
pinpoint tests associated with this DTC using the
manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit and instrument cluster
power and ground supply circuits for short, open circuit.
Check CAN communications between RJB and instrument
cluster. Check for invalid vehicle speed signal from
ABS/instrument cluster gateway. Check for invalid engine
speed signal from ECM/instrument cluster gateway. Check for
invalid signal from CJB B100B87
Column Lock
Ground
Authorisation
Instrument cluster power and
ground supply circuits - short,
open circuit
LS CAN fault
RJB power and ground supply
circuits - short, open circuit Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit and instrument cluster
power and ground supply circuits for short, open circuit.
Check CAN communications between RJB and instrument
cluster

DTC Description Possible Cause Action U013900
Lost
Communication
with Suspension
Control Module 'B'
Loss of CAN communication
with adaptive damping module Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check
adaptive damping module for DTCs and refer to the relevant
DTC Index U014000
Lost
Communication
With Body
Control Module
Loss of CAN communication
with CJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check CJB for
DTCs and refer to the relevant DTC Index U014200
Lost
Communication
With Body
Control Module
"B"
Loss of CAN communication
with RJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check RJB for
DTCs and refer to the relevant DTC Index U015100
Lost
Communication
With Restraints
Control Module
Loss of CAN communication
with RCM Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check RCM for
DTCs and refer to the relevant DTC Index U015600
Lost
Communication
with Information
Centre 'A'
Loss of CAN communication
with information and
entertainment control module Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check
information and entertainment control module for DTCs and
refer to the relevant DTC Index U016400
Lost
Communication
with HVAC
Control Module
Loss of CAN communication
with climate control module Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check climate
control module for DTCs and refer to the relevant DTC Index U019900
Lost
Communication
with Door Control
Module 'A'
Loss of CAN communication
with driver door module (DDM) Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check DDM for
DTCs and refer to the relevant DTC Index U020000
Lost
Communication
with Door Control
Module 'B'
Loss of CAN communication
with passenger door module
(PDM) Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check PDM for
DTCs and refer to the relevant DTC Index U020800
Lost
Communication
with Seat Control
Module 'A'
Loss of CAN communication
with driver seat module (DSM) Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check DSM for
DTCs and refer to the relevant DTC Index U021400
Lost
Communication
with Remote
Function
Actuation
Loss of CAN communication
with keyless vehicle module
(KVM) Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check KVM for
DTCs and refer to the relevant DTC Index U024100
Lost
Communication
with Headlamp
Control Module 'A'
Loss of CAN communication
with headlamp control module Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check
headlamp control module for DTCs and refer to the relevant
DTC Index U025000
Lost
Communication
with Impact
Classification System Module
Loss of CAN communication
with pedestrian protection
module Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check
pedestrian protection module for DTCs and refer to the
relevant DTC Index U025600
Lost
Communication
with Front
Controls Interface
Module 'A'
Loss of CAN communication
with integrated control panel Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check
integrated control panel for DTCs and refer to the relevant
DTC Index U030000
Internal Control
Module Software
Incompatibility
Invalid configuration message
is received Re-configure the RJB using the manufacturer approved
diagnostic system. Clear the DTC and retest. If the DTC is
still logged suspect the instrument cluster, refer to the new
module/component installation note at the top of the DTC
Index U040268
Invalid data
received from
TCM
Algorithm based failures -
events information Check TCM for DTCs and refer to the relevant DTC Index U200411
Auxiliary Switch
Pack
Auxiliary switch signal circuit -
short to ground Refer to the electrical circuit diagrams and check auxiliary
switch signal circuit for short to ground U200415
Auxiliary Switch
Pack
Auxiliary switch signal circuit -
short to power, open circuit Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check auxiliary switch signal
circuit for short to power, open circuit

DTC Description Possible Cause Action U300046 Control Module
Calibration/parameter memory
failure Suspect the instrument cluster, check and install a new
instrument cluster as required, refer to the new
module/component installation note at the top of the DTC
Index U300049 Control Module
Internal electronic failure Suspect the instrument cluster, check and install a new
instrument cluster as required, refer to the new
module/component installation note at the top of the DTC
Index U300055 Control Module
Incorrect car configuration
data received Re-configure the RJB using the manufacturer approved
diagnostic system. Clear DTC and re-test. If the DTC remains
suspect the instrument cluster. Check and install a new
instrument cluster as required, refer to the new
module/component installation note at the top of the DTC
Index U300087 Control Module
Missing message Re-configure the RJB using the manufacturer approved
diagnostic system. Check instrument cluster for additional
DTCs and refer to the DTC Index. Carry out CAN network
integrity tests using the manufacturer approved diagnostic
system. If DTC remains suspect the instrument cluster.
Check and install a new instrument cluster as required, refer
to the new module/component installation note at the top of
the DTC Index U300281
Vehicle
Identification
Number
Vehicle/component mis-match.
Corrupt VIN data being
transmitted, instrument
cluster previously installed to
other vehicle Check and install original/new instrument cluster as required,
refer to the new module/component installation note at the
top of the DTC Index U300316 Battery Voltage
Instrument cluster logic power
supply circuit - voltage below
threshold Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check instrument cluster logic
power supply circuit for short to ground, open circuit U300317 Battery Voltage
Instrument cluster logic power
supply circuit - circuit voltage
above threshold Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check
charging system for over charging condition U300362 Battery Voltage
Mis-match in battery voltage,
of 2 volts or more, between
instrument cluster and RJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check instrument cluster logic
power supply circuit for short, open circuit

STEERING
COLUMN LOCKED Red warning triangle
illuminated in LCD. Fault has occurred preventing the
steering column lock from unlocking. This will also prevent the engine from
starting. Press the stop/start button to return to
accessory mode 4. If steering column
is still locked, investigate cause of
fault and interrogate the CJB (central junction box) for faults and diagnose
using an approved Jaguar Diagnostic System. IGNITION ON
Red warning triangle
illuminated in LCD. Stop/start button has been pressed
without the brake pedal depressed. Ignition is now in power mode 6. None ENGINE STOP
BUTTON PRESSED Red warning triangle
illuminated in LCD. Engine stop button has been pressed
when the vehicle is moving. Engine will
not be switched off until button is pressed quickly for a second time. Do not stop engine when vehicle is
moving unless necessary. LIGHTS ON
Amber warning triangle
illuminated in LCD. Side lamps or headlamps are on and the
driver's door has been opened. Switch off headlamps to avoid
excessive drain on battery. AUTOLAMP
DELAY OFF None
Autolamp delay feature has been
deactivated by moving light control
switch from the auto position. None AUTOLAMP
DELAY XX:XX None
Lighting control switch has been moved
to one of the 4 autolamp delay
positions. Message displays delay timer period selected. None AUTOLAMP
DELAY None
Autolamp delay is selected on the light
control switch and the driver has
switched off ignition and opened driver's
door initiating the autolamp delay. None. Message will extinguish once the
selected delay timer has switched off
the headlamps. TAIL LAMP
FAILURE None The tail lamp LED (light emitting
diode)'s are not functioning correctly.
Location shown on vehicle image. Correct fault in rear lamp assembly,
RJB (rear junction box) or wiring. BRAKE LAMP
FAILURE None The brake lamp LED's are not functioning correctly. Location shown on displayed vehicle image. Correct fault in rear lamp assembly,
RJB or wiring. INDICATOR LAMP
FAILURE None
A turn signal indicator bulb has failed.
Location is shown on displayed vehicle image. Replace failed turn signal indicator
bulb. E-DIFF NOT
AVAILABLE Amber warning triangle
illuminated in LCD accompanied with a single
chime Differential temperature has reached the
overheat threshold. System deactivated
until temperature returns within limits. Allow differential to cool. E-DIFF FAULT
Amber warning triangle
illuminated in LCD accompanied with a single
chime Fault has occurred with electronic
differential. System deactivated until
fault rectified. Investigate cause of fault and
interrogate the system for faults and
diagnose using an approved Jaguar Diagnostic System. ENGINE OIL LOW
Amber warning triangle
illuminated in LCD accompanied with a single
chime The oil is at the minimum level for safe
operation. Top-up with 1 liter (1.8 pints) of oil. ENGINE OIL
HIGH Amber warning triangle
illuminated in LCD accompanied with a single
chime This warning is displayed when the
engine is started, if the oil is above the
maximum level for safe operation. Stop the vehicle as soon as safety
permits and have the engine oil
drained to correct level, before driving
the vehicle. ENGINE OIL
CRITICALLY LOW Red warning triangle
illuminated LCD accompanied with a single
chime The oil is below the minimum level for
safe operation. Stop the vehicle as soon as safety
permits and top-up with 1.5 liters (2.6
pints) of oil. Wait for 10 minutes,
re-check the oil level reading and top-up again if necessary. ENGINE OIL
LEVEL MONITOR
SYSTEM FAULT Amber warning triangle
illuminated in LCD accompanied with a single
chime A fault with the oil level monitoring
system is indicated. Investigate cause of fault and
interrogate the ECM for faults and diagnose using an approved Jaguar Diagnostic System. WATER IN FUEL
Amber warning triangle
illuminated in LCD accompanied with a single
chime The water in fuel sensor in the fuel filter
has detected water in the fuel system. Drain fuel filter to remove collected
water. Odometer Display

The odometer displays the total distance which the vehicle has traveled. This is calculated by the instrument cluster using
wheel speed signals from the ABS module.
The odometer can show 6 characters and distances up to 999,999 miles or kilometers. The total distance travelled is stored in a
EEPROM (electrically erasable programmable read only memory) and the RAM (random access memory). This ensures that the
total distance is not lost if the battery is disconnected.

The odometer value is passed to other vehicle system modules on the medium speed and high speed CAN bus. This is used to record the total vehicle mileage for diagnostic purposes and when storing DTC (diagnostic trouble code)'s.

module and fuel injector operating data from the ECM.
A 'Trip' button is located on the end of the LH (left-hand) multifunction switch and allows the driver to access, in sequence, the
available trip information by repeatedly pressing the button. The trip information is displayed in the following order:

Trip distance – The trip distance since the last reset is displayed
Average speed – The average speed since the last reset is displayed
Average fuel consumption – The average fuel consumption since the last reset is displayed
Range – The range is displayed showing the distance which can be travelled until the fuel gage reads empty. If the
range display shows dashes (-), this indicates a failure with one or both of the fuel level sensors.

The trip computer has three independent memories; A, B and Auto. Memories A and B can be set independently. The Auto
memory is reset after each ignition cycle and therefore only contains information relating the current journey.

The trip information can also be accessed from the TSD located in the center console. The TSD allows the same information
available with the trip button on the multifunction switch to be displayed on the TSD, with the addition of the option to reset
the values in the A and B memories.
If the battery is disconnected, all trip data in memories A, B and Auto are erased.

Fuel Level Display

The fuel level display is a linear LCD display to show the usable fuel tank contents. The level display is active at all times when the ignition is on. Low fuel level is displayed as a LOW FUEL LEVEL message and an amber warning triangle in the
message center.

The fuel level is obtained by fuel level sensors in the fuel tank. These are monitored by the RJB software and their output resistance values, corresponding fuel quantity, are transmitted to the instrument cluster on the medium speed CAN bus. The instrument cluster uses the two level sensor signals to calculate the fuel tank contents. This calculation takes into account
fuel movement in the tank to display a steady fuel quantity in the LCD.
The fuel level information is transmitted on the medium speed and high speed CAN bus for use by other vehicle system modules.
AUDIBLE WARNINGS

The instrument cluster can generate audible warnings to alert the driver to a displayed message and change of vehicle
operating condition. The audible warning is generated by a sounder located within the instrument cluster. The audible warnings
can be generated for the warnings below and are listed in order of priority, with the first being the highest priority:

Seatbelt reminder
EPB (High Pitch)
ACC Driver Intervene 1
Airbag fault
Key in ignition switch
ASL overspeed
ACC Driver Intervene 2
EPB (Low Pitch)
Vehicle armed (entry delay)
JaguarDrive selector not in park
Valet mode
Lights on reminder
Hood operation
Passive Entry / Passive Start (PEPS)
Memory set
Turn signal indicators
Seat Belt Minder.

The audible warnings can take the form of a single chime, a number of chimes or a continuous chime. The audible warnings are
initiated by a CAN message request from the requesting sub-system control module or by the instrument cluster software.