2010 JAGUAR XFR fuse box

Published: 11-May-2011
Fuel Tank and Lines - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Fuel Tank and Lines - System Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Hardwired



Item Description 1 Battery 2 Megafuse (250A) 3 RJB (rear junction box) 4 CJB (central junction box). 5 ECM (engine control module) 6 DMTL Pump

Visual Inspection

Mechanical Electrical
Low/contaminated fuel
Fuel supply/return line(s)
Fuel tank and filler pipe
Fuel leak(s)
Fuel filler cap
Fuel filter
Push connect fittings
Fuel pump
Fuses
Links
Relays
Fuel Pump Driver Module (FPDM)
Fuel pump module
Sensor(s)
Engine control module (ECM)
Rear Junction Box (RJB)
Restraints Control Module (RCM)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step

4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for
Diagnostic Trouble Codes (DTCs) and proceed to the DTC Index

Symptom Chart

Symptom Possible Causes Action Engine cranks, but does not
fire
Engine breather system
disconnected/restricted
Ignition system
Fuel system
Electronic engine control
Ensure the engine breather system is free from
restriction and is correctly installed
Check for ignition system, fuel system and electronic
engine control DTCs and refer to the relevant DTC
Index Engine cranks and fires, but
will not start
Evaporative emissions purge
valve
Fuel pump
Spark plugs
HT short to ground (tracking)
check rubber boots for
cracks/damage
Ignition system
Check for evaporative emissions, fuel system and
ignition system related DTCs and refer to the
relevant DTC Index Difficult cold start
Engine coolant level/anti-
freeze content
Battery
Electronic engine controls
Fuel pump
Purge valve
Check the engine coolant level and condition
Ensure the battery is in a fully charged and
serviceable condition
Check for electronic engine controls, engine
emissions, fuel system and evaporative emissions
system related DTCs and refer to the relevant DTC
Index Difficult hot start
Injector leak
Electronic engine control
Purge valve
Fuel pump
Ignition system
Check for injector leak, install new injector as
required
Check for electronic engine controls, evaporative
emissions, fuel system, ignition system and engine
emission system related DTCs and refer to the
relevant DTC Index Difficult to start after hot
soak (vehicle standing,
engine off, after engine has
reached operating
temperature)
Injector leak
Electronic engine control
Purge valve
Fuel pump
Ignition system
Check for injector leak, install new injector as
required
Check for electronic engine controls, evaporative
emissions, fuel system, ignition system and engine
emission system related DTCs and refer to the
relevant DTC Index Engine stalls soon after start
Breather system
disconnected/restricted
ECM relay
Electronic engine control
Ignition system
Air intake system restricted
Air leakage
Fuel lines
Ensure the engine breather system is free from
restriction and is correctly installed
Check for electronic engine control, ignition system
and fuel system related DTCs and refer to the
relevant DTC Index
Check for blockage in air filter element and air
intake system
Check for air leakage in air intake system Engine hesitates/poor
acceleration
Fuel pressure, fuel pump,
fuel lines
Injector leak
Air leakage
Check for fuel system related DTCs and refer to the
relevant DTC Index
Check for injector leak, install new injector as
required www.JagDocs.com

Instrument Cluster - Instrument Cluster
Diagnosis and Testing

Principles of Operation Published: 22-Mar-2013

For a detailed description of the Instrument Cluster, refer to the relevant Description and Operation sections in the workshop
manual. REFER to: (413-01 Instrument Cluster)

Instrument Cluster (Description and Operation), Instrument Cluster (Description and Operation), Instrument Cluster (Description and Operation).
Inspection and Verification


CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
1. Verify the customer concern.
2. Visually inspect for obvious signs of damage and system integrity.

Visual Inspection
Mechanical Electrical
Fluid level(s)
Accessory installations
Fuse(s)
Wiring harness
Electrical connector(s)
Instrument cluster
Central Junction Box (CJB)
Engine Junction Box (EJB)
Driver Door Module (DDM)
Engine Control Module (ECM)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.

Symptom Chart

The instrument cluster contains a self-diagnostic mode known as engineering test mode (ETM). This can be used to show the
status of the instrument cluster inputs as well as a number of other useful features.

When in the ETM, the Message Centre displays internal data that can be cycled through. All functions except the message
centre display will continue to operate normally unless otherwise noted.

This document is to be used in conjunction with the instrument cluster ETM (see relevant section within this document) and
the Integrated Diagnostic System (IDS) facility; this does not supersede or replace the IDS facility.

Go directly to the 'Area of Concern/Symptom' that indicates the customer concern(s) and perform the actions described within
the relevant section(s):

Area of Concern/Symptom Diagnostic
Ref. No.
Actions
Notes Warning lights A-1
Perform instrument cluster Self-Diagnostic
Mode/ETM test 3. When this test is ended the warning lamps
currently required to be 'ON' will remain
illuminated. Multiple warning lights
'ON' B–1
Check with IDS for DTCs related to
identified vehicle system(s). . . B–2
Check instrument cluster battery and
ignition wiring - refer to circuit diagrams. Specifically check continuity of Standard
Corporate Protocol (SCP) and Controller Area
Network (CAN) lines. . B–3 Check instrument cluster grounds. . . B–4 Check fuses in battery junction box. . . B–5 Check for harness traps in facia. . . B–6
Perform instrument cluster Self-Diagnostic
Mode/ETM test 3. Frost/ice warning illuminated in mixed red and
amber; therefore colour differs from other
warning lamps. When this test is ended,
warning lamps currently required to be 'ON' will
remain illuminated. . B–7
Check for open circuit/shorts in wiring to
related warning lamp trigger (module,
sensor, switch). .

1 Battery 2 Megafuses 3 RJB (rear junction box) 4 Entertainment system control module 5 Integrated audio module 6 Audio amplifier 7 Audio system speakers

Parking Aid - Proximity Camera
Diagnosis and Testing

Principles of Operation Published: 30-Apr-2014

For a detailed description of the rear view camera system, refer to the relevant Description and Operation section of the
workshop manual.

Inspection and Verification


CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
NOTES:


If a control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty
Policy and Procedures manual, or determine if any prior approval programme is in operation, prior to the installation of a new
module/component.


When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with
an up-to-date calibration certificate. When testing resistance always take the resistance of the digital multimeter leads into
account.


Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
1. Verify the customer concern

2. Visually inspect for obvious signs of damage and system integrity

Visual Inspection
Mechanical Electrical
Touch screen
Rear view camera
Fuses
Wiring harnesses and connectors
Touch screen
Rear view camera
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step

4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for
Diagnostic Trouble Codes (DTCs) and refer to the DTC Index

5. Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as required

Symptom Chart

Symptom Possible Cause Action Rear view camera
image slow to react
System operation within
specification
NOTE: After selecting reverse, it may take up to 20 seconds for the
image to be displayed.
No further action necessary Blank screen
Rear view camera not
functioning
GO to Pinpoint Test A. Blue screen
Video in signal absent
GO to Pinpoint Test B. No tracking lines
Missing/invalid reverse
gear signal
LIN fault
Using the manufacturer approved diagnostic system, check the
central junction box for related DTCs and refer to the relevant
DTC index
GO to Pinpoint Test C.

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

1 CJB Generator 2 BJB Starter motor 3 GWM (gateway module) 4 DBM (dual battery module) 5 RJB Duel battery module 6 Battery to BJB terminal 7 BMS (battery monitoring system) Duel battery fuse box 8 Primary battery 9 Transit relay 10 Secondary battery 11 DBJB (dual battery junction box) 12 ECM 13 Generator 14 EJB COMPONENT LOCATION - DUAL BATTERY VEHICLES
www.JagDocs.com

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.