electrical JAGUAR XFR 2010 1.G Workshop Manual

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

Battery, Mounting and Cables - Battery
Diagnosis and Testing

Principles of Operation Published: 10-Mar-2014

For a detailed description of the battery system and operation, refer to the relevant Description and Operation section of the
workshop manual. REFER to: Battery and Cables (414-01 Battery, Mounting and Cables, 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 checked and/or the donor vehicle.
NOTES:


Generic scan tools may not read the codes listed, or may read only five digit codes. Match the five digits from the scan
tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give additional information
read by the manufacturer-approved diagnostic system).


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


Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.


If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the
cause. Always check for loose connections and corroded terminals.
1. Verify the customer concern.

2. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection
Mechanical Electrical
Generator
Drive belt
Drive belt tensioner
Generator pulley
Check the security of the generator fixings
Generator
Battery
Battery connections
Starter motor
Harnesses and connectors
Fuses
Charge warning lamp function
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 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 Causes Action
Battery power to vehicle
interrupted
High resistance between battery terminals and
clamps
GO to Pinpoint Test
A. Midtronics EXP-1080 User Guide

Carry out the following: -

Surface Voltage Removal Process

A vehicle which has had its battery charged or been driven in a 24 hour period before the test, must have its surface charge
removed

1. Turn on the ignition but do not start the vehicle
2. Switch on the headlamps on high beam for a minimum 3 minutes
3. Switch off the headlamps
4. Wait a minimum of 5 minutes before recording test results for any battery measurements

PINPOINT TEST A : VOLTAGE DROP TEST CONDITIONS DETAILS/RESULTS/ACTIONS A1: GROUND CIRCUIT
NOTE: This test checks for high resistance between the battery terminal and the battery clamp 1 Start the engine, turn on the following: (1) ) Air conditioning

(2) ) Blower fan on full speed
(3) Headlights on main beam

(4) Heated screen - rear

(5) Heated screen - front (if installed)
(6) Heated seats (if installed) 2 Connect the multimeter between the battery negative terminal and the battery clamp as shown in picture below (do not
disconnect the battery at this stage) 3 Set the multimeter to read DC voltage and record the reading Is reading equal to or below 0.1 volts? Yes
GO to A2. No
Switch all electrical loads and engine off, return the vehicle to
an ignition off condition. Disconnect the battery negative
clamp, clean clamp and terminal then reconnect and repeat test
GO to A1. A2: POWER CIRCUIT
NOTE: This test checks for high resistance between the battery terminal and the battery clamp 1 Start the engine, turn on the following: (1) ) Air conditioning
(2) ) Blower fan on full speed

(3) Headlights on main beam

(4) Heated screen - rear
(5) Heated screen - front (if installed)

(6) Heated seats (if installed) 2 Connect the multimeter between the battery positive terminal and the battery clamp as shown in picture below (do not
disconnect the battery at this stage) 3 Set the multimeter to read DC voltage and record the reading Is reading equal to or below 0.1 volts? Yes
Carry out midtronics battery test procedure
No
Switch all electrical loads and engine off, return the vehicle to
an ignition off condition. Disconnect the battery power clamp,

Published: 11-May-2011
Generator and Regulator - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Generator - Overview
Description and Operation

OVERVIEW

On 5.0L V8 vehicles (naturally aspirated and supercharger), the charging system consists of a 150 Amp output generator and
regulator assembly. The generator and regulator assembly generates electrical power for the vehicle electrical system and
maintains the battery in a charged state.

When the engine is running the generator produces an alternating current, which is converted to a direct current internally. The
output from the generator is controlled by the voltage regulator (located inside the generator) and then supplied to the battery
through the main battery positive cable. The generator is mounted on the front right side of the engine and driven at
approximately 3 times engine speed by the accessory drive belt.

transmits the calculated voltage to the generator and regulator on the LIN bus connection.
The ECM will over-ride the voltage value requested by the battery monitoring system if it detects a fault in the generator and regulator. The ECM also signals the instrument cluster to display a warning message if it detects a fault with the generator and regulator. For additionalinformation refer to Instrument Cluster 413-01.



GENERATOR AND REGULATOR Component Description

The regulator provides a controlled variable voltage output from the generator. Two electrical terminals are provided on the
outer casing of the generator. One terminal supplies the DC (direct current) voltage output from the generator to the battery
positive terminal. The second terminal provides the LIN bus connection between the regulator and the ECM. www.JagDocs.com

Published: 11-Jul-2014
Information and Entertainment System - General Information - Information
and Entertainment System
Diagnosis and Testing

Principle of Operation

For a detailed description of the Information and Entertainment System, refer to the relevant Description and Operation
sections in the workshop manual. REFER to: (415-01A Information and Entertainment System)

Audio System (Description and Operation), Audio System (Description and Operation), Audio System (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
Information and entertainment module
Audio amplifier module
Integrated audio module
Portable audio interface module
Digital audio broadcast module
Integrated control panel
Touch screen display
Satellite radio module
Television module
Navigation system module
Telephone module
Compact disc player jammed, not loading
Scratched/dirty compact discs
Speakers
Fuses
Loose or corroded connector(s)
Information and entertainment module
Audio amplifier module
Integrated audio module
Portable audio interface module
Digital audio broadcast module
Integrated control panel
Touch screen display
Satellite radio module
Television module
Navigation system module
Telephone module
Speakers
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, check for Diagnostic Trouble Codes (DTCs) and refer to the relevant DTC Index.

Symptom Chart

Symptom Display Possible Causes Action Poor audio quality (all
sources) Display normal
MOST harness
connections loose
MOST harness
connections
contaminated
MOST harness
misrouted
- Too many
bends
- Bend radius
less than
25mm
Check MOST harness connectors for
security
Check MOST harness connectors for
contamination
Check the routing of the MOST harness Information and
entertainment system
inoperative Touch screen blank or
displaying a flashing
logo
MOST network fault
REFER to: Communications Network (418-00 Module Communications Network,
Diagnosis and Testing).
DTC Index

For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Section 100-00. REFER to:
(100-00 General Information)

Published: 11-May-2011
Information and Entertainment System - General Information - Cellular
Phone
Diagnosis and Testing

Principle of Operation

For a detailed description of the Cellular Phone System, refer to the relevant Description and Operation sections in 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.
1. Verify the customer concern.
2. Visually inspect for obvious signs of damage and system integrity.

Visual Inspection
Mechanical Electrical
Microphone
Bluetooth antenna
Electrical connectors
Wiring harness for damage or corrosion
Fuses
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 relevant DTC Index.
Symptom Chart

Symptom Action Unable to pair
GO to Pinpoint Test A. Not Auto Connecting
GO to Pinpoint Test B. No Audio to 3rd Party
GO to Pinpoint Test C. No Audio from 3rd Party
GO to Pinpoint Test D. No Audio
GO to Pinpoint Test E. DTC Index


CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part
number 3548-1358-00
NOTES:


If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the
Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to
the installation of a new module/component.


Generic scan tools may not read the codes listed, or may read only five digit codes. Match the five digits from the scan
tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give extra information read by
the manufacturer-approved diagnostic system).


When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal places and
with a current calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.

Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.


If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the
cause. Always check for loose connections and corroded terminals.

DTC Description Possible Cause Action B1A5613 Antenna
Bluetooth antenna circuit -
open circuit Refer to the electrical circuit diagrams and check blue tooth
antenna circuit for open circuit B1D7984 Microphone Input
Signal amplitude <
minimum Refer to the electrical circuit diagrams and test microphone
input circuit for short/open circuit. Check integrated audio
module for related DTCs and refer to relevant DTC Index U1A0088
Private
Communication
Network
Bluetooth phone module
internal communications
failure Suspect the module. Check and install a new telephone
module as required, refer to the new module/component
installation note at the top of the DTC Index U210000
Initial
Configuration Not
Complete
Initial configuration not
complete Re-configure the RJB using the manufacturer approved
diagnostic system. If DTC remains, carry out CAN network
integrity tests using the manufacturer approved diagnostic system U210100
Control Module
Configuration
Incompatible
Configuration incompatible Re-configure the RJB using the manufacturer approved
diagnostic system. If DTC remains, suspect the telephone
module. Check and install a new telephone module as
required, refer to the new module/component installation note
at the top of the DTC Index U300044 Control Module
Data memory failure Re-configure the telephone module. If the DTC remains,
suspect the telephone module. Check and install a new
telephone module as required, refer to the new
module/component installation note at the top of the DTC
Index U300045 Control Module
Program memory failure Re-configure the telephone module. If the DTC remains,
suspect the telephone module. Check and install a new
telephone module 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 telephone module. Check and install a new
module as required, refer to the new module/component
installation note at the top of the DTC Index U300098 Control Module
Component or system over
temperature Check for additional DTCs and refer to DTC Index. Clear DTC
and re-test/monitor condition for re-occurrence U300362 Battery Voltage
Mis-match in battery
voltage, of 2 volts or more,
between telephone module
and RJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system
Pinpoint Tests

PINPOINT TEST A : UNABLE TO PAIR TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: 'NO PHONE FITTED' DISPLAY
NOTE: Prior to continuing with any diagnosis, ensure that the Customer telephone and level of software is included on
the JLR approved list, the telephone battery is fully charged and in a serviceable condition, the bluetooth function is activated
and the telephone handset is placed within the vehicle cabin area. 1 Carry out checks to determine if 'No Phone Fitted' is shown on vehicle display. Is 'No Phone Fitted' displayed? Yes
GO to A2. No
Locate the connected telephone and if not Customer telephone, disconnect from the system. A2: TELEPHONE BLUETOOTH DEVICE SEARCH 1 Carry out Bluetooth device search using Customer handset. www.JagDocs.com

Is DTC B1A56-13 logged?
Yes
Carry out remedial actions as outlined in DTC Index. If symptom remains, contact your local in market
support for assistance.
No
GO to B5. B5: BLUETOOTH CONNECTION 1 Carry out checks to determine if Bluetooth connection icon is shown on Customer Bluetooth telephone screen but shows 'No Phone Fitted' on vehicle screen. Is Bluetooth connection icon shown on the Customer handset but 'No Phone Fitted' displayed on vehicle
screen?
Yes
GO to B9. No
GO to B6. B6: 'LAND ROVER' AUTHORISATION
NOTE: Some handsets may require operator intervention to manually authorise connection. 1 Carry out checks to determine if 'Land Rover' is authorised in the Customer Bluetooth telephone device list menu. Is 'Land Rover' authorised in the Customer Bluetooth telephone device list menu?
Yes
GO to B7. No
Advise customer that 'Land Rover' needs to be authorised in the Customer Bluetooth telephone device
list menu, or operator intervention may be required to manually authorise connection. B7: SEARCH FOR DEVICES SCREEN 1 Select the search for devices button on the vehicle display. Does pressing the search for devices button bring up the searching screen on the vehicle display?
Yes
Contact your local in market support for assistance.
No
GO to B8. B8: CYCLE IGNITION AND CHECK SEARCH FOR DEVICES SCREEN 1 Lock vehicle (wait 60s) before unlocking and turning Ignition status back to ON. Does pressing the search for devices button bring up the searching screen on the vehicle display?
Yes
No further action required for this Symptom. Possible intermitent fault.
No
Contact your local in market support for assistance. B9: PAIRED DEVICE 1 Check Customer telephone paired device list to establish which device the Customer telephone is connected to. Is the Customer telephone connected to the vehicle?
Yes
Lock vehicle (wait 60s) before unlocking and turning Ignition status back to ON. If Not Automatically
Connecting, contact you local in market support for assistance.
No
Using the Customer telephone controls, disconnect from the currently connected device and delete from
paired device list. Lock vehicle (wait for 60s) before unlocking and turning Igition status to ON. If Not Automatically Connecting, contact your local in market support for assistance.
PINPOINT TEST C : NO AUDIO TO THIRD PARTY TEST CONDITIONS DETAILS/RESULTS/ACTIONS C1: MICROPHONE DIAGNOSTIC TROUBLE CODES (DTCS)
NOTE: Prior to continuing with any diagnosis, ensure that the Customer telephone and level of software is included on
the JLR approved list, the telephone battery is fully charged and in a serviceable condition, the telephone is placed within the
vehicle cabin area and is connected to the vehicle via bluetooth. 1 Using the Manufacturer approved diagnostic system, check for any logged microphone DTCs in Audio Front Control module. Is DTC B1D79-01 logged? Yes
Carry out diagnosis of electrical failure as advised in Action column of DTC Index.
No
Contact your local in market support for assistance.
PINPOINT TEST D : NO AUDIO FROM THIRD PARTY TEST CONDITIONS DETAILS/RESULTS/ACTIONS D1: 'IN CALL' DISPLAY

NOTE: Prior to continuing with any diagnosis, ensure that the Customer telephone and level of software is included on
the JLR approved list, the telephone battery is fully charged and in a serviceable condition, the telephone is placed within the
vehicle cabin area and is connected to the vehicle via bluetooth. 1 Carry out checks to determine if 'In Call' is shown on the vehicle display. Is vehicle display showing 'In Call'?
Yes
Contact your local in market support for assistance.
No
Call has ended. No further action is required for this symptom.
PINPOINT TEST E : NO AUDIO TEST CONDITIONS DETAILS/RESULTS/ACTIONS E1: AUDIO FROM THIRD PARTY
NOTE: Prior to continuing with any diagnosis, ensure that the Customer telephone and level of software is included on
the JLR approved list, the telephone battery is fully charged and in a serviceable condition, the telephone is placed within the
vehicle cabin area and is connected to the vehicle via bluetooth. 1 Establish from Customer feedback/symptom if there is Audio from the Third Party. Is there Audio from the Third Party? Yes
GO to E2. No
Refer to the 'No Audio From Third Party' Pinpoint test.GO to D. E2: AUDIO TO THIRD PARTY 1 Establish from Customer feedback/symptom if there is Audio to the Third Party. Is there Audio to the Third Party? Yes
GO to E3. No
Refer to the 'No Audio To Third Party' Pinpoint test.GO to C. E3: CD OR RADIO AUDIO 1 Establish from Customer feedback/symptom if there is Audio from the CD or Radio. Is there Audio from the CD or Radio? Yes
GO to E4. No
Suspect MOST ring fault, refer to electrical circuit diagrams and check/rectify MOST ring as necessary. E4: TELEPHONE HANDSET AUDIO 1 Establish from Customer feedback/symptom if there is Audio from the telephone handset. Is there Audio from the telephone handset? Yes
Ensure vehicle is parked. Disconnect and reconnect handset. If issue not resolved, contact your
local in market support for assistance.
No
Contact you local in market support for assistance.