2010 JAGUAR XFR Electrical

DTC Description Possible Cause Action B116515
Left Front
Puddle Lamp
Output
Left front puddle lamp
control 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 test left front puddle lamp control circuit
for short to power, open circuit B116611
Right Front
Puddle Lamp
Output
Right front puddle lamp
control circuit - short to
ground Refer to the electrical circuit diagrams and test right front
puddle lamp control circuit for short to ground B116615
Right Front
Puddle Lamp
Output
Right front puddle lamp
control 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 test right front puddle lamp control circuit
for short to power, open circuit B111E11
Boot/Trunk
Lamps
Luggage compartment lamp
control circuit - short to
ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check luggage compartment lamp control
circuit for short to ground B111E15
Boot/Trunk
Lamps
Luggage compartment lamp
control circuit - short to
power, open circuit Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check luggage compartment lamp control
circuit for short to power, open circuit B112412
Lamp Fade
Control
Interior lamp fade control
circuit - short to power Refer to the electrical circuit diagrams and check interior lamp
fade control circuit for short to power B113C12
Hazard Switch
Illumination
Hazard switch illumination
control circuit - short to
power Refer to the electrical circuit diagrams and check hazard switch
illumination control circuit for short to power B1A8596
Ambient Light
Sensor
Light sensor internal
electronic failure Check and install a new sensor as required U201012
Switch
Illumination
Switch/interior illumination
PWM supply circuit - short to
power Refer to the electrical circuit diagrams and check switch/interior
illumination PWM supply circuit for short to power U201014
Switch
Illumination
Switch/interior illumination
PWM supply circuit - short to
ground, open circuit Refer to the electrical circuit diagrams and check switch/interior
illumination PWM supply circuit for short to ground, open circuit

Published: 11-May-2011
Module Communications Network - Communications Network - Overview
Description and Operation

OVERVIEW

A number of different types of communication network are incorporated into the vehicle wiring harnesses for the transmission
of commands and information between control modules. The configuration installed on a particular vehicle depends on the
model and equipment level.


NOTE: The control diagrams shown later in this section are schematics reflecting communications networks fitted to LH
(left-hand) vehicles only. For detailed layouts of the various communications networks fitted to LHD (left-hand drive) and RHD
(right-hand drive) vehicles, refer to the Electrical Guide.
The communications networks available on the vehicle are shown in the table below.

Network Baud Rate LIN (local interconnect network) bus 9.6 kbits/s Medium speed CAN (controller area network) bus 125 kbits/s High speed CAN bus 500 kbits/s Media Orientated System Transport (MOST) ring 24 mbits/s

Module Communications Network - Communications Network
Diagnosis and Testing

Principles of Operation Published: 25-Nov-2013

For a detailed description of the Communications Network, refer to the relevant Description and Operation sections in the
workshop manual. REFER to: (418-00 Module Communications Network)

Communications Network (Description and Operation),
Communications Network (Description and Operation), Communications Network (Description and Operation).
Inspection and Verification

CAUTIONS:


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.


Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.

1. Verify the customer concern

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



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

Symptom Chart

Symptom Possible Causes Action MOST network fault - Touch screen
display displaying flashing logo
MOST ring broken after the touch screen display
Control module on MOST network power or ground circuit open
circuit, high resistance
Control module on MOST network internal failure
GO to
Pinpoint Test
B. MOST network fault - Touch screen
display blank
MOST ring broken between the information and entertainment
control module and the touch screen display
Information and entertainment control module or touch screen
display power or ground circuit open circuit, high resistance
Wake up signal not received by the information and
entertainment control module
Information and entertainment control module or touch screen
display internal failure
GO to
Pinpoint Test
H. Controller Area Network (CAN)

Control Module Connections to the CAN Harness

Control modules are connected to the CAN harness either in a 'loop' or 'spur' configuration. In the 'loop' type configuration the
CAN harness loops into the module (via two connector pins) and then loops out of the module (via another two connector
pins). In the 'spur' type configuration, a harness spur is spliced into the main 'backbone' of the CAN harness and the module is
connected to the harness spur via two connector pins. Electrical

Fuses (refer to electrical guide)
Wiring harness
Correct engagement of electrical connectors
Loose or corroded connections
Routing of fibre optic harnesses
Correct engagement of optical connectors
Correct placement of optical connectors (ring order)
Correct assembly of optical connectors (backout, etc)
Damage to fibre (chafing, abrasion, kinking, cuts, etc) Visual Inspection
www.JagDocs.com

Is the power LED illuminated?
Yes
Test passed. GO to A2. No
Test failed. Install a new battery into the MOST tester. GO to A1. A2: 2+0 INPUT/OUTPUT TEST NOTES:


'2+0' indicates that the loop harness connector consists of 2 fibre optic terminals and 0 electrical terminals.
The MOST tester may continue to emit a tone or illuminate the LED after the test switch is released. This does not
indicate a fault. 1 Set the MOST tester power switch to 'on' 2 Set the connector selector switch to '2+0' 3 Set the indication switch to 'beep' or 'LED' 4 Remove the covers from the MOST tester 2+0 connector and the 2+0 loop harness connector 5 Connect the 2+0 loop harness to the MOST tester 2+0 connector 6 Operate the test switch and check the MOST tester beep/LED Did the MOST tester emit a tone or illuminate the LED?
Yes
Test passed. GO to A3. No
Test failed. MOST tester or 2+0 harness fault A3: 2+4 INPUT/OUTPUT TEST NOTES:


'2+4' indicates that the loop harness connector consists of 2 fibre optic terminals and 4 electrical terminals.
The MOST tester may continue to emit a tone or illuminate the LED after the test switch is released. This does not
indicate a fault. 1 Set the MOST tester power switch to 'on' 2 Set the connector selector switch to '2+4' 3 Set the indication switch to 'beep' or 'LED' 4 Remove the covers from the MOST tester 2+4 connector and the 2+4 loop harness connector 5 Connect the 2+4 loop harness to the MOST tester 2+4 connector 6 Operate the test switch and check the MOST tester beep/LED Did the MOST tester emit a tone or illuminate the LED?
Yes
Test passed. GO to A4. No
Test failed. MOST tester or 2+4 harness fault A4: ADAPTER HARNESS AND PRISM TEST
NOTE: The MOST tester may continue to emit a tone or illuminate the LED after the test switch is released. This does
not indicate a fault. 1 Set the MOST tester power switch to 'on' 2 Set the connector selector switch to '2+0' 3 Set the indication switch to 'beep' or 'LED' 4 Remove the covers from the MOST tester 2+0 connector, the prism, and the adapter harness connectors 5 Connect the adapter harness to the MOST tester 2+0 connector 6 Connect the prism to the adapter harness 7 Operate the test switch and check the MOST tester beep/LED Did the MOST tester emit a tone or illuminate the LED?
Yes
Test passed
No
Test failed. MOST tester, adapter harness or prism fault
PINPOINT TEST B : MOST NETWORK INITIAL TESTS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: MOST NETWORK INITIAL TEST 1

NOTE: When connecting the MOST tester, use the 2+0 or 2+4 socket as appropriate and set the connector selector
switch to match the socket in use 1 Switch on the audio/video system 2 Disconnect the MOST harness connector from a control module located after the touch screen display and before the information and entertainment control module 3 Set the MOST tester power switch to 'on' 4 Connect the MOST harness connector to the MOST tester 5 Check the touch screen display for indication of a MOST network fault Has the MOST network been restored? Yes
The disconnected control module is causing the MOST network fault. GO to Pinpoint Test E. No
The disconnected control module is not causing MOST network fault. GO to B2. B2: MOST NETWORK INITIAL TEST 2 1 Check the MOST tester beep/LED Did the MOST tester emit a tone or illuminate the LED? Yes
MOST signal received. The MOST network fault is located downstream of the MOST tester. GO to Pinpoint
Test C. No
MOST signal not received. The MOST network fault is located upstream of the MOST tester. Disconnect
the MOST harness connector from the MOST tester and reconnect it to the control module. GO to Pinpoint Test D.
PINPOINT TEST C : MOST NETWORK DOWNSTREAM TESTS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS C1: MOST NETWORK DOWNSTREAM TEST 1 1 Refer to the electrical circuit diagrams and identify the succeeding control module on the MOST network Is this control module the information and entertainment control module?
Yes
GO to Pinpoint Test F. No
GO to C2. C2: MOST NETWORK DOWNSTREAM TEST 2 1 Disconnect the MOST harness connector 2 Direct the MOST harness connector at a suitable surface and check for the presence of red light Is red light present?
Yes
Disconnect the MOST harness connector from the MOST tester and reconnect it to the control module.
GO to C3. No
The fault is in the MOST harness between the MOST tester and the disconnected MOST harness
connector. Install a new MOST harness as necessary C3: MOST NETWORK DOWNSTREAM TEST 3
NOTE: When connecting the MOST tester, use the 2+0 or 2+4 socket as appropriate and set the connector selector
switch to match the socket in use 1 Connect the succeeding MOST harness connector to the MOST tester 2 Check the touch screen display for indication of a MOST network fault Has the MOST network been restored?
Yes
The disconnected control module is causing the MOST network fault. GO to Pinpoint Test E. No
The disconnected control module is not causing the MOST network fault. GO to C1.
PINPOINT TEST D : MOST NETWORK UPSTREAM TESTS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS D1: MOST NETWORK UPSTREAM TEST 1 1 Refer to the electrical circuit diagrams and identify the preceding control module on the MOST network Is this control module the touch screen display?
Yes
GO to Pinpoint Test G. No
GO to D2. D2: MOST NETWORK UPSTREAM TEST 2 1 Disconnect the MOST harness connector from the control module www.JagDocs.com

2 Direct the MOST harness connector at a suitable surface and check for the presence of red light Is red light present?
Yes
The MOST network fault is in the control module or the MOST harness to the succeeding control
module. GO to D3. No
The MOST network fault is located upstream of the disconnected control module. Reconnect the MOST
harness connector to the control module. GO to D1. D3: MOST NETWORK UPSTREAM TEST 3
NOTE: When connecting the MOST tester, use the 2+0 or 2+4 socket as appropriate and set the connector selector
switch to match the socket in use 1 Connect the MOST harness connector to the MOST tester 2 Check the touch screen display for indication of a MOST network fault Has the MOST network been restored?
Yes
The disconnected control module is causing the MOST network fault. GO to Pinpoint Test E. No
The fault is in the MOST harness between the MOST tester and the succeeding control module. Install a
new MOST harness as necessary
PINPOINT TEST E : CONTROL MODULE TESTS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS E1: CONTROL MODULE TEST 1 NOTES:


When connecting the MOST tester, use the 2+0 or 2+4 socket as appropriate and set the connector selector switch to
match the socket in use
The MOST tester may continue to emit a tone or illuminate the LED after the test switch is released. This does not
indicate a fault. 1 Connect the MOST tester to the relevant control module using the adapter harness 2 Operate the test switch and check the MOST tester beep/LED Did the MOST tester emit a tone or illuminate the LED? Yes
MOST signal received. Tests inconclusive. Reconnect the MOST harness connector to the control module
and confirm that the MOST network fault is still present. Repeat the tests from the beginning. GO to
Pinpoint Test B. No
GO to E2. E2: CONTROL MODULE TEST 2 1 Refer to the electrical circuit diagrams and test the relevant control module power and ground circuits for open circuit, high resistance Are the power and ground circuits within specification? Yes
GO to E3. No
Repair the power and/or ground circuit E3: CONTROL MODULE TEST 3 1 Reconnect the MOST harness to the control module 2 Check the touch screen display for indication of a MOST network fault Has the MOST network been restored? Yes
Tests inconclusive. Repeat the tests from the beginning. GO to Pinpoint Test B. No
Install a new control module
PINPOINT TEST F : MOST NETWORK FINAL DOWNSTREAM TEST TEST
CONDITIONS DETAILS/RESULTS/ACTIONS F1: MOST NETWORK FINAL DOWNSTREAM TEST 1 NOTES:


When connecting the MOST tester, use the 2+0 or 2+4 socket as appropriate and set the connector selector switch to
match the socket in use

1 Disconnect the MOST tester 2 Install the cover to the MOST diagnostic connector Has the MOST network been restored? Yes
No further action required
No
Install a new MOST diagnostic connector cover H3: BLANK SCREEN TEST 3 1 Check the MOST tester beep/LED Did the MOST tester emit a tone or illuminate the LED? Yes
MOST signal received. The MOST network fault is located downstream of the MOST tester. GO to H4. No
MOST signal not received. The MOST network fault is located upstream of the MOST tester. Disconnect
the MOST tester from the MOST diagnostic connector and install the cover. GO to H5. H4: BLANK SCREEN TEST 4 1 Disconnect the MOST harness connector from the touch screen display 2 Direct the MOST harness connector at a suitable surface and check for the presence of red light Is red light present? Yes
GO to Pinpoint Test J. No
The fault is in the MOST harness between the MOST diagnostic connector and the touch screen display.
Install a new MOST harness as necessary H5: BLANK SCREEN TEST 5 1 Disconnect the MOST harness connector from the information and entertainment control module 2 Direct the information and entertainment control module at a suitable surface and check for the presence of red light Is red light present? Yes
Install a new MOST harness between the information and entertainment control module and the MOST
diagnostic connector
No
GO to Pinpoint Test I.
PINPOINT TEST I : INFORMATION AND ENTERTAINMENT CONTROL MODULE TESTS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS I1: INFORMATION AND ENTERTAINMENT CONTROL MODULE TEST 1 1 Using the manufacturer approved diagnostic system, check the information and entertainment control module for related DTCs Is communication possible between the manufacturer approved diagnostic system and the information and
entertainment control module? Yes
Refer to the relevant DTC index
No
GO to I2. I2: INFORMATION AND ENTERTAINMENT CONTROL MODULE TEST 2 1 Refer to the electrical circuit diagrams and test the information and entertainment control module power and ground circuits for open circuit, high resistance Are the power and ground circuits within specification? Yes
GO to I3. No
Repair the power and/or ground circuit I3: INFORMATION AND ENTERTAINMENT CONTROL MODULE TEST 3 1 Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the electrical circuit diagrams and test the medium speed CAN bus circuit for short circuit to ground, short
circuit to power, open circuit, high resistance Is the medium speed CAN bus within specification? Yes
Install a new information and entertainment control module
No
Repair the medium speed CAN bus circuit
PINPOINT TEST J : TOUCH SCREEN DISPLAY TESTS TEST
CONDITIONS DETAILS/RESULTS/ACTIONS J1: TOUCH SCREEN DISPLAY TEST 1 1 Refer to the electrical circuit diagrams and test the touch screen display power and ground circuits for open circuit, high resistance

Are the power and ground circuits within specification?
Yes
GO to J2. No
Repair the power and/or ground circuit J2: TOUCH SCREEN DISPLAY TEST 2 1 Reconnect the MOST harness to the touch screen display 2 Check the touch screen display for indication of a MOST network fault Has the MOST network been restored?
Yes
Tests inconclusive. Repeat the tests from beginning. GO to Pinpoint Test B. No
Install a new touch screen display DTC Index

Central Junction Box (CJB)

CAUTIONS:


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


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 5-digit codes. Match the 5 digits from the scan tool to
the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the
manufacturer-approved diagnostic system)


When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places and with a
current 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


Inspect connectors for signs of water ingress, and pins for damage and/or corrosion


If diagnostic trouble codes 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


Where an 'on demand self-test' is referred to, this can be accessed via the 'diagnostic trouble code monitor' tab on the
manufacturers approved diagnostic system


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

DTC Description Possible Cause Action B00D511
Restraint System
Passenger Disable
Indicator
PAD lamp supply circuit - short
to ground Refer to the electrical circuit diagrams and check PAD
lamp supply circuit for short to ground B00D512
Restraint System
Passenger Disable
Indicator
PAD lamp supply circuit - short
to power Refer to the electrical circuit diagrams and check PAD
lamp supply circuit for short to power B00D513
Restraint System
Passenger Disable
Indicator
PAD lamp supply circuit - open
circuit Refer to the electrical circuit diagrams and check PAD
lamp supply circuit for open circuit