2010 JAGUAR XFR ECU

are each secured with a clamp. The inlet pipes each have a welded hanger bracket which support each rear silencer at the rear
of the vehicle on mounting rubbers. The fabricated rear silencers have 2 perforated tubes which are supported on 2 perforated
baffle plates. The exhaust gasses are expelled from the rear silencer via a single outlet pipe. The outlet pipe from each
silencer has a welded hanger bar which support the rear silencer on mounting rubbers. The outlet pipe is fitted with a welded
outlet which is covered with a polished stainless steel finisher which is part welded to the silencer.

REAR SECTION - 5.0L SUPERCHARGER - From 2010MY

The 2 pipes from the front section each connect into 2 short pipes on the center resonator box and are secured with clamps.
Two pipes from the center resonator box each connect into a second resonator silencer. The resonator silencer comprises
perforated tubes separated by 2 baffle plates. Exhaust gasses exit the resonator silencer via 2 outlet pipes. Each pipe has a
welded hanger bracket which allows the rear section to be supported on mounting rubbers. A further bracket is welded to each
pipe which braces the 2 pipes together.

The 2 rear silencers each have a welded inlet pipe which mate with the outlet pipes from the cylindrical resonator silencers and
are each secured with a clamp. The inlet pipes each have a welded hanger bracket which support each rear silencer at the rear
of the vehicle on mounting rubbers. The fabricated rear silencers have a perforated inlet tube which is supported on 2 baffle
plates. Each rear silencer has a welded hanger bar which supports the rear silencer on mounting rubbers. The outlet pipe is
fitted with a welded twin outlet which is covered with 2 polished stainless steel finishers which are part welded to the silencer.

Semi-Active Muffler Valve


NOTE: LH silencer shown, RH (right-hand) silencer similar


Item Description 1 Outer case 2 Overpipe 3 Valve cage 4 Semi-active muffler valve assembly A semi-active muffler valve is located in the rear of each rear silencer. The valve comprises a valve head, a valve shaft, a shaft
guide, a housing shell, a membrane and a spring. The valve head is connected to the membrane by the valve shaft which is
located within the shaft guide. The valve shaft is attached to the membrane with a pin. The membrane is located inside the
housing shell and is held in position by the spring.

The valve head is located in and seals against the over pipe. When the exhaust gas pressure increases and overcomes the
spring pressure, the valve head is lifted and the gasses by-pass the valve and are expelled though slots in the valve cage into
the rear chamber and into the outlet pipe.

When the semi-active muffler valve is closed the exhaust gasses are expelled from the inlet tube through the perforations. The
exhaust gasses then pass through perforations in the outlet pipe and are expelled from the silencer via the single outlet pipe
and 2 polished stainless steel finishers.

When the semi-active muffler valve is open, the exhaust gasses are released into the rear chamber. The exhaust gasses then
pass directly into the open end of the outlet pipe and are expelled from the silencer via the outlet pipe and the 2 polished
stainless steel finishers. With the valve open, the gasses reduce through the baffle plates and tube perforations giving the
exhaust note a more 'sporty' sound.

8 LH (left-hand) fuel level sensor 9 RH (right-hand) fuel level sensor and fuel pump module 10 RCM (restraints control module)

OPERATION System Operation

The fuel pump is a variable-speed rotary-vane type, which operates in a fuel pump module located in the RH side of the fuel tank. A venturi transfer pump is located in the RH side of the tank. The fuel pump module is secured in the fuel tank with a bayonet style locking ring that is welded into the tank structure. The fuel pump module has an integral top plate for the
external pipe work and electrical connectors.

Fuel level is biased towards the RH compartment in the fuel tank by drawing fuel through the internal cross over pipe via the jet pump, which serves to deliver a constant supply of fuel to the transfer pump and swirl pot assembly. High pressure fuel
from the fuel pump is directed through the jet pump's orifice, creating a low pressure area to be formed in the cross over pipe.
The fuel is drawn into this low pressure area in the cross over pipe and directed into the swirl pot delivery pipes.
Fuel is pumped from the fuel pump to the fuel rail via the integral filter and pressure relief valve.

The pressure relief valve assists engine starting by retaining a pre-set fuel pressure in the supply pipe and fuel rail. The
pressure relief valve also limits fuel rail pressure due to temporary vapor increase in hot conditions and pressure caused by
sudden load changes, for example, a fully open to closed throttle transition.

To meet ORVR (on-board refueling vapor recovery) requirements, the fuel tank and associated components are designed to
minimize fuel vapor loss during refueling. This is achieved by preventing fuel vapor from the fuel tank venting directly to the
atmosphere. Instead fuel vapor is directed into the EVAP (evaporative emission) charcoal canister where it is stored before
being purged at intervals to the engine’s intake manifold.

North American Specification (NAS) vehicles feature additional connections and pipes at the rear of the filler head and also
incorporates a Diagnostic Monitoring Tank Leakage (DMTL) pump for leak detection requirements.
Fuel System Schematic Diagram



Item Description 1 Fuel injector (8 off) 2 Fuel rail www.JagDocs.com

1 Anti-trickle valve assembly 2 Wide bore filler neck 3 Fuel cap 4 Fuel cap lanyard 5 DMTL breather hose 6 DMTL breather filter 7 Fuel filler pipe 8 Connection of leak pipe to tank vapor line 9 Connection to charcoal canister 10 DMTL vapor leak pipe 11 Fuel filler hose 12 Hose connection with fuel tank inlet check valve The fuel filler head is positioned at the rear of the vehicle, above the right hand rear wheel. The filler head is covered by a
molded plastic cover which is electrically locked when the vehicle is locked. The filler cap is a conventional screw in type which
is secured to the vehicle with a lanyard. Fuel Filler Pipe (NAS)

11.
















12. NOTE: On vehicles with supercharger, detach the lower
electric connector from the retaining bracket as well as the
electrical connector indicated.















13.

jack.
WARNING: Secure the component to the transmission

CAUTION: Use suitable packing material to prevent
damage to the component.
Torque: 35 Nm







14. NOTE: Do not disassemble further if the component is
removed for access only.

ETM Test/no. Message Center Display Gauge/Indicator/Display
Tested.
Range
Description 25:XXX -
XXXX
26:XXX -
XXXX
27.XXX -
XXXX 25 - Passenger seat belt
26 - Not used
27 - On-board temp ref 18 - Analogue
Inputs.
ANALOG
INPUTS.
#: RAW -
Ratio
28:XXX -
XXXX
29:XXX -
XXXX
30:XXX -
XXXX
31.XXX -
XXXX Cluster inputs. TDB.
Displays Hex coding of inputs 28 -
31.


28 - On-board temp
29 - Not used
30 - Not used
31 - Not used 19 -
Speedometer. SPEEDOMETER.

RAW:
MPH:
KMH:
DRIVER: Speedometer inputs. .
Displays present .
Speedometer inputs values;
Speedometer will indicate
present road speed. 20 -
Tachometer. TACHOMETER.

RAW:
ACTUAL:
DRIVER: Tachometer inputs. .
Displays present received
Tachometer input values,
tachometer will indicate present
engine RPM. 21 - Fuel
system. FUEL SYSTEM.

(A) (B)
RAW: X X
FILT: X X
PERCENT: X X Fuel indication system. .
Displays present received fuel level
A/D inputs in decimal, fuel gauge
will indicate present filtered level. 22 - Battery
voltage. BATTERY VOLTAGE.

LOCAL:
VEHICLE:
RAW:
A/D: Battery voltage. .
Displays present received battery
input voltage values. If message not
received or invalid display will be '_
_ _'. 23 - Rolling
counts. ROLLING COUNTS.

ODO:
FUEL: Odometer and fuel gauge. 0 - 255.
Displays present received odometer
and fuel level input values in
decimal, value is a rolling count. If
either message not received or
invalid respective display will be ' _
_ _' . 24 - VAPS. VAPS.

CURRENT:
COMMAND:
STATUS: Variable assistance power
steering (VAPS) status. .
CURRENT is displayed in mA.
COMMAND is last command sent to
VAPS chip. STATUS is last status
returned from VAPS chip. 25 - Module MODULE STATUS. Provides status of; Ignition
CONNECTED
Communication (Coms) ok status. (IGN), Dynamic Stability Control IGN
(DSC), Adaptive Cruise Control WAITING Coms not received, not an DSC
(ACC) and Adaptive damping MISSING issue ACC
control module (ADCM) modules. FAULTY. Coms never received ADCM Coms error . 26 - Module MODULE STATUS. Provides status of; Electronic
CONNECTED
Communication (Coms) ok status. park brake (EPB), Pedestrian EPB
Impact ECU (PIE), Restraints WAITING Coms not received, not an PIE
control module (RCM) and MISSING issue RCM
Traction control module (TCM), FAULTY. Coms never received TCM
modules.. Coms error . 27 - Module
status. MODULE STATUS.

ECM
RCC Provides status of; Engine
control module (ECM), Rear
Climate Control (RCC), Driver
Door Control (DDC) and
CONNECTED
WAITING
MISSING
Communication (Coms) ok
Coms not received, not an
issue

Message Other Warnings Reason Action in LCD. system and the tire pressures
cannot be monitored. ENGINE TEMPERATURE
HIGH Amber warning triangle
illuminated in LCD at temperatures of between
118.0°C (244.4°F) and
119.3°C (246.8°F). Engine coolant temperature has
exceeded threshold for normal
operation.
Stop vehicle and allow engine
to idle for 5 minutes. Switch off
engine and allow to stand for
not less than 10 minutes. Check
coolant level.
If message re-appears,
investigate coolant system for
leakage. ENGINE
OVERHEATING Red warning triangle
illuminated in LCD at temperatures of 119.4°C
(247°F) or above. Engine coolant temperature has
exceeded threshold for normal engine
operation.
Stop vehicle and allow engine
to idle for 5 minutes. Switch off
engine and allow to stand for
not less than 10 minutes. Check
coolant level.
If message re-appears,
investigate coolant system for
leakage. ENGINE OIL
PRESSURE LOW Red warning triangle
illuminated in LCD. Engine oil pressure has fallen below the
threshold for normal operation. Stop the engine immediately. Check
engine oil level. If oil level correct, do
not restart engine until oil pressure
loss has been identified and corrected. RESTRICTED
PERFORMANCE Red or Amber warning
triangle illuminated in LCD depending on nature of power loss. A fault has occurred which has reduced
engine power output. Investigate cause of engine power
loss. Interrogate control modules for
faults and diagnose using an approved Jaguar Diagnostic System. ENGINE SYSTEMS
FAULT
MIL (malfunction
indicator lamp)
illuminated for
certain faults.
Red or Amber
warning triangle
illuminated in LCD.
A fault has occurred in the
engine management system or, if
the MIL is illuminated, an emissions related fault is present
which has been detected by
the On-Board Diagnostic
systems in the ECM and TCM. A fault has occurred with the
start/stop switch.
Investigate cause of fault.
Interrogate ECM and TCM for faults and diagnose using an
approved Jaguar Diagnostic
System.
Check start/stop switch for
correct operation or short
circuits. CHECK FUEL
FILLER CAP
(NAS Vehicles Only)
Red warning triangle
illuminated in LCD. The Diagnostic Monitoring Tank Leakage
(DMTL) system has detected fuel filler
cap has not been correctly installed or
the system has a leak. Check fuel filler cap to ensure is it is
correctly installed and secure or check
the fuel system for leakage. ENGINE TEMPERATURE
INDICATION
FAULT Red warning triangle
illuminated LCD. A fault has occurred in the engine
management system and the engine
temperature signal is no longer being
received. Investigate cause of engine
temperature failure. Interrogate ECM for faults and diagnose using an approved Jaguar Diagnostic System. PLEASE WAIT
COLD START IN
PROGRESS Amber warning triangle
illuminated LCD. Message appears after start/stop switch
is pressed. Glow plugs are warming up,
message will appear for up to 12
seconds dependant on ambient
temperature. Engine will crank once message is switched off. None GEARBOX FAULT
Battery symbol and amber
warning triangle illuminated
in LCD. TCM has detected a fault in the Investigate transmission fault. transmission. Transmission may default
to 'limp home' mode and only allow
limited operation of forward gears and
reverse. Interrogate TCM and diagnose fault using an approved Jaguar Diagnostic
System. BATTERY NOT
CHARGING Red warning triangle
illuminated in LCD. Charge output from generator not
detected by ECM. Investigate cause of generator failure. OVER 120 km/h
(GULF States Only)
Red text illuminated
in LCD. Vehicle has exceeded the preset 120
km/h speed value. Reduce vehicle speed. DPF FULL SEE
HANDBOOK Amber or Red warning
triangle illuminated LCD. ECM has detected diesel particulate Drive the vehicle as described in the filter is becoming blocked or has become
blocked. owners handbook or the workshop
manual to clean the filter. COOLANT LEVEL
LOW Red warning triangle
illuminated in LCD. Coolant level in expansion tank has
fallen below minimum level.
Stop vehicle and allow engine
to idle for 5 minutes. Switch off
engine and allow to stand for
not less than 10 minutes. Check
coolant level and replenish

Published: 21-Dec-2012
Battery and Charging System - General Information - Quiescent Drain
Description and Operation

VEHICLE QUIESCENT CURRENT TESTING

On vehicles fitted with a Battery Monitoring System (BMS), the diagnostic routine for quiescent drain testing in the approved
Jaguar or Land Rover diagnostic system should be utilized.

If a customer complains of a vehicle battery that discharges continuously or when left for a prolonged period of time, it is
recommended that a quiescent drain test is performed as described below.

The battery drain should be measured using the approved Jaguar or Land Rover diagnostic system or a Digital Multi-Meter
(DVOM). A procedure for quiescent drain measurement using the diagnostic system is available in the Diagnosis and Testing
section of the Workshop Manual. The vehicle should be in the locked/armed state (for example vehicle alarm fully armed), all
doors, engine and luggage compartment lids are open and latched (so as to appear closed from an electrical point of view).
The test should take place after the vehicle has entered shutdown mode. The time taken for this to occur after the ignition is
switched off varies according to model (Refer to the Topix On line resource for details).

When the vehicle is armed, the effect of the security system Light Emitting Diode (LED) flashing is to cause a pulsation in the
measured current drain. In this case, either the average current should be taken (using a Digital Multi- Meter (DVOM) with an
averaging system) or the current reading taken, ignoring the brief high current peaks.
EQUIPMENT
Approved Jaguar or Land Rover diagnostic system with current probeOR Digital Multi-Meter (DVOM) with current probe.

METHOD OF MEASUREMENT

Using an Approved Jaguar or Land Rover Diagnostic System.
1. Switch off all electrical loads and ensure that the ignition is off
2. Connect the current probe to the approved Jaguar or Land Rover diagnostic system
3. Calibrate the probe
4. Install a clamp around the battery lead/junction box lead
5. Go to the Quiescent Current Testing section in this procedure

Using a digital multimeter

Do not use an in-line DVOM to measure the quiescent drain on vehicles fitted with an electronic throttle (for example XK 2006
onwards). The current exceeds the maximum amount the fuse in the DVOM is capable of handling.
1. Switch off all electrical loads and ensure that the ignition is off
2. Connect the current probe to the digital multmeter
3. Calibrate the probe
4. Install a clamp around the battery lead/junction box lead
5. Go to the Quiescent Current Testing section in this procedure

QUIESCENT CURRENT TESTING

1. Switch ignition to ‘on’ or select ignition mode in keyless vehicles and switch to ‘off’ (do not crank)
2. Remove key from ignition switch (if equipped)
3. Open and latch all doors, hood and luggage compartment lid
4. Lock the vehicle using the remote function on the remote handset. (Single lock only to avoid volumetric alarm arming)
5. Remove any other potential electrical drains such as accessories plugged into accessory sockets
6. Record the amperage readings after the shutdown period referenced in the Topix on line resource for details. Note all
cars from 10MY onwards and XK from 07MY and XF from 08MY should be less than 30mA after 30 minutes
7. Record the final reading on the battery report form

The preferred method of testing following an excessive current consumption figure is to use a current probe around individual
junction box leads to the various suspected circuits to identify a potential cause. This is in preference to the old method of
removing fuses for the following reasons:

The drain may be caused by a module remaining active and preventing the quiescent drain from reducing to normal
levels
The drain may be caused by a relay winding that is activated. Pulling the fuse can allow this to ‘reset’ and the drain will
be lost and go un-diagnosed

QUIESCENT DRAIN - TYPICAL VALUES


NOTE: The quiescent drain after the initial shutdown period should not exceed the value shown in the table.

Jaguar Quiescent Drain Values
MODEL SHUT DOWN PERIOD (minutes) TYPICAL VALUES BATTERY DRAIN (mA) XJS 3.2 60 <30 Sovereign 3.2 60 <37.3

Battery, Mounting and Cables - Battery and Cables - Overview
Description and Operation

OVERVIEW

Single Battery Vehicles Published: 18-Jun-2014

Mounted on the battery negative terminal is a BMS (battery monitoring system) module. The BMS module is integral with the
battery negative cable and is controlled by the ECM (engine control module).


CAUTION: To avoid damaging the battery monitoring system module, always use a suitable body ground point rather than
the battery negative terminal when connecting a slave power supply to the vehicle.

If a new battery is fitted to the vehicle, the BMS module will require re-calibrating using the Jaguar approved diagnostic
system.

Fitted on the battery positive terminal is a transit relay. The transit relay must be removed from the vehicle during the
Pre-Delivery Inspection (PDI). For additional information, refer to the PDI Manual.

The vehicle battery provides power to the BJB (battery junction box). The BJB contains 3 megafuses, delivering power to the RJB (rear junction box), the CJB (central junction box) and the EJB (engine junction box). In addition to containing fuses and
relays, the RJB and RJB contain software to control a number of vehicle systems. These functions are covered in the appropriate sections of this manual.
Dual Battery System Vehicles - TD42.2L Engine Variants Only

Two batteries are fitted to accommodate the dual battery system used for the Stop/Start system.

A primary battery is located in the luggage compartment floor in a plastic molded tray and secured with a metal rod. The
secondary battery is located in the DBJB (dual battery junction box).
The primary battery is a 90Ahr, 850A CCA AGM Battery.
The secondary battery is a 14Ahr, 200A CCA Absorbed Glass Mat (AGM) Battery.

A BMS (battery monitoring system) control module is mounted on the primary battery negative terminal. The BMS control
module is integral with the battery negative cable and is controlled by the GWM (gateway module).


CAUTION: To avoid damaging the BMS control module, always use the ground (negative (-)) terminal stud point on the
right side top mount. Never connect directly to the primary battery negative terminal when connecting a slave power supply to
the vehicle, the BMS control module can be damaged.

If a new primary battery is fitted to the vehicle, the BMS control module will require re-calibrating using a Jaguar approved
diagnostic system.

When the vehicle leaves the factory, a transit relay is fitted to the battery positive terminal. The transit relay is connected to
the CJB which limits the electrical functions to essential items only, to reduce loads on the primary battery. The transit relay must be removed from the vehicle during the PDI (Pre-Delivery Inspection). For additional information, refer to the PDI.

The primary battery provides power to the BJB. The BJB contains three megafuses, delivering power to the RJB, the EJB and the starter motor and generator. In addition to containing fuses and relays, the RJB and CJB contain software to control a number of vehicle systems. These functions are covered in the appropriate sections of this manual.

A jump start terminal is located adjacent to the EJB. A cover protects the terminal when not in use. If jump starting is
required, the cover must be removed and the positive (+) jump lead attached securely. The negative (-) jump lead is attached
to a stud located on the right side top mount in the engine compartment. The cover must be fitted to the positive terminal
when not in use.
Dual Battery System

The dual battery system is used on vehicles with the stop/start system. The dual battery system prevents the vehicle
electrical systems being subjected to undesirably low voltages during repeated engine restarts. If the electrical systems are
subject to low voltages the customer may notice degraded performance of components and systems and incorrect fault DTC
(diagnostic trouble code)'s may be stored.

The dual battery system isolates all electrical components and systems sensitive to low supply voltage from the primary
battery while an engine start is in progress, and supplies them from the secondary battery. Without the dual battery system,
the electrical power required by the TSS (Tandem Solenoid Starter) motor to crank the engine for each start would cause a
voltage drop across the entire vehicle electrical network, and cause control modules to function incorrectly and in some cases
reset and/or record DTC's.

If the dual battery system is unable to prevent electrical supplies to the vehicle systems being subjected to low voltage levels
during engine stop/start operations, due to the condition of the primary and/or secondary batteries or a system fault, the
stop/start feature is disabled.