2010 JAGUAR XFR lock

Mechanical Electrical Parking aid control module
Parking aid sounder
Audio system
4. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to
the next step
5. If the cause is not visually evident, check for diagnostic trouble codes (DTCs) and refer to the DTC index

Symptom Chart

CAUTION: Do not apply any grease based products to any parking aid system connector or pins
NOTES:

Please note if this diagnosis is being carried out on a vehicle without a hard wired parking aid speaker, ensure the in car
infotainment system is fully functional and configured correctly


Parking aid sensors that are painted incorrectly and not to the manufacturer standards, will not be considered in any
warranty claim

Symptom Possible Causes Action
NOTE:
Permanent/Intermittent fault

Parking aid system not
functioning correctly. (No
DTCs displayed)
Front or rear parking aid
sensors dirty
Front or rear parking aid
sensor position incorrect
Front or rear parking aid
sensor incorrectly installed
Front or rear parking aid
sensor coupling rings not
installed/incorrectly installed
Parking aid control module or
parking aid sensor connector
not fully latched
Parking aid sensors painted
without being removed from
the bumper assembly or not
painted to the manufacturer
specification
Clean front or rear parking aid sensors
Check the front or parking aid rear sensor position
Check the front or rear parking aid sensor are
correctly installed
Check front or rear parking aid sensor coupling
rings are installed/installed correctly
Ensure all parking aid system connectors are
correctly latched
Remove parking aid sensor and ensure correctly
painted parking aid sensor is installed
- Parking aid sensors that are painted
incorrectly and not to the manufacturer
standards, will not be considered in any
warranty claim
NOTE:
Permanent/Intermittent fault

Parking aid system not
functioning correctly. (No
DTCs displayed). System
characteristics or
environmental effects
Parking aid sensors incorrectly
mounted
Incorrect vehicle ride height
Dirty parking aid sensor face.
Ice/snow covered sensor.
Debris trapped between
parking aid sensor and
parking aid sensor body.
Heavy rain or water splash
from the ground
Non standard, bumper,
exhausts/tailpipes, tow bar or
external spare wheel
mounting
Area around vehicle is not
clear of obstacles such as
channels, gutters or other
items on the ground
Exhaust gas and warm air
clouds creating ghost echoes
Vehicle not on level ground or
next to a gradient
Parking aid sensors painted
without being removed from
the bumper assembly or not
painted to the manufacturer
specification
Ensure the sensors are a tight fit in the holder and
locked. Ensure the sensors are central in the holder
and bumper and at the correct angle
Ensure vehicle ride height is within the specified
limits. Rectify as required
Clean the sensor face as required. Defrost the
sensor and dry as required. Clear any debris from
the sensor and holder as required. Water flowing
over the sensor is a system limitation. (no action
required)
Check for non standard, bumper, exhausts/tailpipe,
tow bar or external spare wheel mounting that may
be being detected by the parking aid system.
Rectify as required
Ensure the area around the vehicle is clear of any
obstacles, move the vehicle to a suitable area
before continuing diagnosis
Ensure no exhaust gas or warm area clouds are in
the area around the parking aid sensor detection
range
Ensure the vehicle is on level ground and clear of
any ramps, potholes or speed bumps, move the
vehicle to a suitable area before continuing
diagnosis
Remove parking aid sensor and ensure correctly
painted parking aid sensor is installed
- Parking aid sensors that are painted
incorrectly and not to the manufacturer
standards, will not be considered in any
warranty claim

Published: 07-Aug-2014
Battery and Charging System - General Information - Battery Care
Requirements
Description and Operation
1. INTRODUCTION

This document defines the requirements for care and maintenance of batteries, and the standard of battery care at dealers and
retailers for new vehicles.

This applies to all types of 12 Volt Lead Acid Batteries used in Jaguar and Land Rover vehicles whether they are conventional
flooded technology or Absorbed Glass Mat (AGM – also known as Valve Regulated Lead Acid (VRLA)) technology and also
applies to both Primary, Secondary and Auxiliary Batteries. AGM batteries offer improved resistance to cycling as seen in stop
start applications.

In order to prevent damage to the battery and ensure a satisfactory service life, all processes detailed within this document
must be rigorously adhered to.
It is equally important therefore to note the following key points:

All new vehicles leave the factory with either a transit relay installed and/or have a transit mode programmed into the
vehicle control modules. The transit relay must be removed and the transit mode disabled (where applicable) using an
approved diagnostic system, NOT MORE THAN 72 HOURS before the customer takes delivery.
The battery can be discharged by the following mechanisms:
- Self Discharge: - A lead acid battery will very slowly discharge itself due to its own internal chemical processes
whether it is connected to a vehicle or not.
- Quiescent Discharge: - The vehicle electrical systems when connected to the battery will draw charge from the
battery.

12 Volt Lead Acid Batteries rely on internal chemical processes to create a voltage and deliver current. These processes and
the internal chemical structure of the battery can be damaged if the battery is allowed to discharge over a number of weeks /
months, or is left in a discharged state for a lengthy time period.

On vehicles with conventional ignition keys, these must not be left in the ignition lock barrel when the transit relay
has been removed, otherwise quiescent current will increase and the battery will discharge more rapidly.
For keyless vehicles, the Smart Key must be stored at least 5m (16 ft) away from the vehicle when the vehicle is
parked or stored.
AGM Batteries are fully sealed and cannot have the electrolyte level topped up.


NOTE: Dealers and retailers involved in the storage / handling of vehicles and replacement batteries have a responsibility
to ensure that only a fully charged battery may be processed through the distribution selling chain.
2. GENERAL RULES FOR BATTERY CARE
2.1 Dealer Demonstration Vehicles

Vehicles used as dealer demonstrator(s), in a showroom, must be connected to a JLR approved showroom conditioner capable
of delivering 50 Amps. This will prevent the battery from being damaged.
2.2 Software Reflash, SDD work or Ignition On related workshop activities

Due to the high electrical current demand and high depth of discharge that can occur during vehicle software re-flash activities,
SDD work or ignition on (power mode 6) related work in the workshop, vehicles that are undergoing such activities MUST have a
JLR approved power supply capable of delivering 50 Amps or more.
2.3 Extended Vehicle Rework

For any extended vehicle rework that results in consuming vehicle power, either the battery should be disconnected or a JLR
approved power supply connected.
2.4 Jump Starting New vehicles before they have been delivered to the customer

It is the dealer / retailers responsibility to make sure the battery is not allowed to discharge by following the
instructions and processes defined in this manual.
However, if circumstances dictate that a new vehicle must be jump started due to a discharged battery whilst the
vehicle is in the dealer / retailers care, the battery on this vehicle must be replaced with a new one prior to delivery
to the customer at the dealer / retailers liability.
The vehicle should also undergo investigation as to why the battery became discharged.
Do not connect the jump starting cable to the negative (-) terminal of the battery. Always connect to the recommended
earth point. As defined in the owners handbook or service documentation for that vehicle. 2.5 AGM Batteries

AGM batteries must not be charged above 14.8 Volts. Doing so will damage them.
AGM Batteries must be tested with a capable battery tester as detailed in the Equipment section (Section 5) of this

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

MODEL SHUT DOWN PERIOD (minutes) TYPICAL VALUES BATTERY DRAIN (mA) XJ6 4.0 60 <38.6 XJS 60 <43.9 XJ6 (X300) (1995MY) 60 <43 XJ8 (X300) 60 <30 XK8 (X100) 60 <30 S-Type (X200) 60 <30 X-Type (X400) 30 <30 XJ6 (X350) 40 <30 XJ8 (X350) 40 <30 XK (X150) - From 2006MY <20 (after lock/arm condition) ² <30 33 (unlocked) <30 XF (X250) - From 2008MY <20 (after lock/arm condition) ² <30 33 (unlocked) <30 XF (X250) - From 2013MY <10 (after lock/arm condition) ² <25 XF SportBrake (X250) - From 2013MY <10 (after lock/arm condition) ² <25 <20 (unlocked) <25 XJ (X351) - From 2010MY - 2012MY 10 (afterlock/arm condition) ² <20 30 (unlocked) <20 XJ (X351) - From 2013MY 10 (afterlock/arm condition) ² <20 <20 (unlocked) <20 F - Type (X152) - From 2013MY 10 (afterlock/arm condition) ² <20 <20 (unlocked) <20
NOTE:

1. The total current drain will be higher if certain approved accessories are fitted (for example: tracker, trailer module, etc.)

2. Applies to vehicles without Tire Pressure Monitoring System (TPMS). Vehicle shut-down period with TPMS is approximately 15
minutes.
www.JagDocs.com

Published: 02-Apr-2014
Battery and Charging System - General Information - Battery Report Form – In Service Batteries Only
Description and Operation


NOTE: Fields marked with * are mandatory and must be completed.

General Information *Vehicle Identification Number (VIN):
Vehicle
Model: Engine type: *Mileage:
*Repair
Date: - Customer Questions *1: What is the customer’s reason for dealer visit? (tick symptoms as appropriate) Non crank
Crank but non
start Warning message Other: *2: How long was the vehicle left prior to issue. * *3: How was the car left (Locked/unlocked) * *4: How did you access to the vehicle Key fob Manual key Handle pull *5: Has the vehicle required assistance for battery issues previously? Yes No *6: Is the vehicle used? (tick symptoms as appropriate) Daily
Every other day Weekly
Less than weekly *7: Average journey length * *8: How many starts do you typically do in a day * *9: Did the customer see any instrument pack warnings prior to the
issue? * *10: Have any of the features been used
without the engine running in the last 3 days (if fitted?) Radio
Power point
accessory CD DVD USB or IPOD
connection TV
Rear seat
entertainment 11: Customer comments:- Please add any additional comments that
are relevant. * Diagnostics (Battery Testing) - - - - 1: Loose battery clamps Yes * No * 2: Loose hold down clamps Yes * No * 3: Corroded terminal posts Yes * No * 4: Physical damage/leaks Yes No * 5: Low electrolyte (Flooded batteries only) Yes * No * 6: Battery Date Code * 7: FEAD belt tension OK * Not OK * 8: Quiescent Drain mA * 9: Vent tube correctly installed Yes * No * 10: Number of Times Battery Charged: * 10: Vent tube correctly installed Yes No 11: Remove the Surface (414-00 battery care requirements) Yes * No * 12: Battery voltage * 13: Midtronics test code before charging (EXP-1080) * 13a: If Midtronics indicates that the battery needs re-charging, charge
the battery following instructions on the recommended battery charger * 13b: Midtronics test code after charge * 13c: Midtronics test code result after charge * 13d: If "good and re-charge" charge the battery following instructions
on the recommended battery charger * 13e: If "charge and re-test" for both before and after the charge
renew the battery * 13f: Only renew the battery if "renew battery", "bad cell" or charge
and re-test has been displayed twice. * Technician Comments:- Please add any additional comments that are relevant. * * * * *

The dual battery system comprises the following components:
Dual Battery Module (DBM).
Dual Battery Junction Box (DBJB).
Gateway Module (GWM).
Primary battery.
Secondary battery.

The GWM hosts most of the software required to control the dual battery system and components. The GWM monitors the
components and can store fault related DTC's.

The GWM also controls the charging system software in conjunction with the ECM, RJB, CJB and ABS (anti-lock brake system) control module via the high speed and medium speed CAN (controller area network) bus. The GWM software will monitor the
status of the stop/start system and determine when a stop/start event can occur. It can also intervene to maintain vehicle
systems by keeping the engine running or initiating a restart due to, for example, climate control system requirements or
request for restart from the ECM. A brake pressure signal is received from the ABS control module which will indicate to the
GWM that an engine restart is required from driver operation of the foot brake.

The GWM contains the intelligent power management system and the BMS software. Monitoring of the primary battery
condition for stop/start is controlled by the GWM and the BMS control module.

6 Instrument Cluster 7 Rear Junction Box (RJB) CONTROL DIAGRAM - DUAL BATTERY SYSTEM VEHICLES



Item Description 1 Battery Monitoring System (BMS) control module 2 Tandem Solenoid Starter (TSS) motor 3 Generator 4 Engine Junction Box (EJB) 5 Engine Control Module (ECM) 6 Anti-lock Brake System (ABS) control module 7 Transmission Control Module (TCM) 8 Central Junction Box (CJB) 9 Gateway Module (GWM) 10 Dual Battery Module (DBM)

is operated to crank the engine. The GWM is connected to the ABS (Anti-lock Brake System) control module via the high speed
CAN bus. With the vehicle stationary and the engine off after an ECO engine stop, when the driver releases the brake pedal
the ABS control module senses the reduction in brake pressure. This change of brake pressure state is sent as a high speed
CAN message which is received by the GWM and the ECM. The GWM reacts within 105ms to instruct the DBM via the LIN bus
to operate the two contactors in the DBJB to supply the sensitive loads from the secondary battery and supply the TSS motor
direct from the primary battery.

When the engine is running and the generator is supplying power to the vehicle systems, the GWM again instructs the DBM to
operate the two contactors in the DBJB to supply all vehicle systems from the primary battery and the generator and to isolate
the secondary battery.

Secondary Battery Charging

The DBM also controls the charging of the secondary battery. The GWM contains electrical load management software and
monitors both batteries for their state of charge. The primary battery is monitored by the BMS control module which is
connected to the DBM via the LIN bus. The DBM communicates the primary battery condition to the GWM via a LIN bus
connection. The GWM sends a signal to the DBM via the LIN bus to instruct it to apply charging from the generator to the
secondary battery when required. The contactor 2 is closed by the DBJB to complete the secondary battery circuit, and the
generator output is applied to the secondary battery to charge it.

The generator output is controlled by the GWM which monitors and controls the electrical load management system. The
generator is connected to the GWM by a LIN bus allowing the GWM to control the output of the generator to maintain electrical
system load requirements and battery charging.

Electrical Load Management

The electrical load management is controlled by the GWM and the BMS control module.

The GWM will monitor the vehicle system power loads before and during an ECO engine stop.

Before an ECO engine stop, the GWM will transmit a signal to system control modules on the CAN bus to request a power save
on all electrical loads and set a minimum electrical value override. The GWM monitors the vehicle electrical loads and will
inhibit a ECO engine stop until the load current is at a value low enough to be supported by the secondary battery.
If the electrical loads cannot be reduced sufficiently, the GWM will inhibit the ECO engine stop.

When the engine is stopped after an ECO engine stop, the GWM will continue to monitor the primary battery state of charge.
If the primary or secondary battery voltage falls below 11.0V, a level which will result in degraded starting performance or
possible primary battery damage, the GWM will initiate an engine start.
System Inhibits

The ECO stop/start system is inhibited if the dual battery system is not be capable of preventing electrical loads on the
vehicle being subject to unacceptably low voltage levels during ECO stop/start operations due to a fault.

ECO stop/start inhibit monitoring of the primary battery is performed by the BMS control module. If the primary battery voltage
is too low to support an ECO stop/start, then the BMS control module will send a message to the GWM on the LIN bus to
suspend ECO stop/start.

The GWM monitors the secondary battery and the dual battery system components. Any fault found will cause the GWM to
inhibit ECO stop/start and the GWM will record a DTC (diagnostic trouble code).

Fault Diagnosis

The GWM performs passive and active diagnostics on the dual battery system to determine the status of the system
components.

Passive diagnostics can detect faults in the DBJB and can check for stuck open or closed contactors and failure of DBM
contactor command signals.

Active diagnostics is a routine to test the capability of the contactors to respond to open or close command signals sent from
the GWM to the DBM. This routine also checks the FET's (Field Effect Transistors) activate as required. (Refer to Dual Battery
Junction Box below for description of FET operation)

The GWM will also check the dual battery system components for faults in a controlled environment when the generator is
providing a charging output. This will ensure that the detection of a fault will not result in sensitive electrical loads being
subjected to low voltage which may occur during an ECO stop/start with a fault present.

The GWM will illuminate the charge warning indicator in the instrument cluster if fault is detected in the dual battery system
which will result in a degraded power supply.

If a fault is detected the GWM transmits a CAN message to inhibit ECO stop/start operation. In some cases it will record a
DTC, display a warning message in instrument cluster and also illuminate charge warning indicator.



PRIMARY BATTERY - ALL VEHICLES Component Description

The primary battery is located in a plastic tray under the luggage compartment floor in the right side of the luggage
compartment, adjacent to the spare wheel. The battery is vented via a tube which is connected with a T piece to the vent from