2010 JAGUAR XFR instrument panel

Press and hold the DSC switch for less than 10 seconds.
The message center will temporarily display either Trac DSC or DSC ON.
The warning indicator in the instrument panel will illuminate while Trac DSC is selected.
The warning indicator will flash when DSC or Trac DSC is active.


NOTE: If cruise control is engaged, it will automatically disengage if DSC activates.

Refer to: Speed Control (310-03 Speed Control - 2.7L V6 - TdV6, Description and Operation).

Corner Brake Control

CBC (corner brake control) influences the brake pressures, below and within DSC and ABS thresholds, to counteract the yawing moment produced when braking in a corner. CBC produces a correction torque by limiting the brake pressure on one side of the
vehicle.

Electronic Brake Force Distribution

EBD (electronic brake force distribution) limits the brake pressure applied to the rear wheels. When the brakes are applied, the
weight of the vehicle transfers forwards, reducing the ability of the rear wheels to transfer braking effort to the road surface.
This may cause the rear wheels to slip and make the vehicle unstable.

EBD uses the ABS braking hardware to automatically optimize the pressure to the rear brakes, below the point where ABS is normally invoked.


NOTE: Only the rear brakes are controlled by the EBD function.
Electronic Traction Control

ETC (electronic traction control) attempts to optimize forward traction by reducing engine torque, or by applying the brake of a
spinning wheel until traction is regained.

ETC is activated if an individual wheel speed is above that of the vehicle reference speed (positive slip) and the brake pedal is
not pressed. The brake is applied to the spinning wheel, allowing the excess torque to be transmitted to the non-spinning
wheel through the drive line. If necessary, the ABS module also sends a high speed CAN bus message to the ECM to request a reduction in engine torque.

When the DSC function is selected off using the DSC switch, the braking and engine torque reduction features are both
disabled, except when the JaguarDrive control is in winter mode. When the JaguarDrive control is in winter mode, selecting the
DSC function off retains the braking and engine torque reduction features, but reduces intervention levels compared to DSC
and Trac DSC modes.

Emergency Brake Assist

EBA (emergency brake assist) assists the driver in emergency braking situations by automatically increasing the applied
braking effort. The ABS module invokes EBA when: The brake pedal is rapidly pressed.
The brake pedal is pressed hard enough to bring the front brakes into ABS operation.
When the brake pedal is rapidly pressed, the ABS module increases the hydraulic pressure to all of the brakes until the threshold for ABS operation is reached. This action applies the maximum braking effort for the available traction. The ABS module monitors for the sudden application of the brakes, using inputs from the brake pedal switch and from the pressure
sensor within the HCU (hydraulic control unit). With the brake pedal pressed, if the rate of increase of hydraulic pressure
exceeds the predetermined limit, the ABS module invokes emergency braking.
When the brake pedal is pressed hard enough to bring the front brakes into ABS operation, the ABS module increases the hydraulic pressure to the rear brakes up to the ABS threshold.
EBA operation continues until the driver releases the brake pedal, sufficiently for the hydraulic pressure in the HCU to drop below a threshold value stored in the ABS module.
Engine Drag-Torque Control
EDC (engine drag-torque control) prevents wheel slip caused by any of the following: A
sudden decrease in engine torque when the accelerator is suddenly released.
A downshift using the Jaguar sequential shift function on automatic transmission vehicles.

When the ABS module detects the onset of wheel slip without the brakes being applied, the ABS module signals the ECM via the high speed CAN bus to request a momentary increase in engine torque.
Understeer Control

Understeer Logic Control is a proactive system which monitors the vehicle for understeer by comparing signals from the yaw
rate and lateral acceleration sensor with signals from the steering angle sensor and wheel speed sensors. www.JagDocs.com

Steering Column - Steering Column
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 26-Jun-2014

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Instrument Panel Lower Trim Panel (501-12 Instrument Panel and Console, Removal and Installation).

3. Refer to: Steering Wheel Rotation Sensor (206-09 Anti-Lock Control - Stability Assist, Removal and Installation).


4.




5.

Steering Column - Steering Column Flexible Coupling
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 11-May-2011

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.

3. Refer to: Air Deflector (501-02 Front End Body Panels, Removal and Installation).

4. Refer to: Instrument Panel Lower Trim Panel (501-12 Instrument Panel and Console, Removal and Installation).


5. WARNING: Make sure that a new steering column
flexible coupling bolt is installed.
Torque: 30 Nm




















6. Torque: 10 Nm

Steering Column Switches - Hazard Flasher Switch
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 11-May-2011







Installation

1. NOTE: When removing the component, some of the
clips may remain attached. These clips should be removed
and returned to their original positions in the instrument
panel.













2.

1. To install, reverse the removal procedure.

DTC Description Possible Cause Action U0103-82
Lost Communication With
Gear Shift Control Module
A-alive / sequence counter
incorrect / not updated
Alive counter fault Check Transmission shift module for stored DTCs.
Check CAN Bus Circuit for fault U0103-83
Lost Communication With
Gear Shift Control Module A
- value of signal protection
calculation incorrect
Checksum fault Check Transmission shift module for stored DTCs.
Check CAN Bus Circuit for fault U0103-87
Lost Communication With
Gear Shift Control Module A
- missing message
CAN Timeout Check Transmission shift module for stored DTCs.
Check CAN Bus Circuit for fault U0122-82
Lost Communication With
Vehicle Dynamics Control
Module - alive / sequence
counter incorrect / not updated
Alive counter fault Check Anti-lock braking system for stored DTCs. Check
CAN Bus Circuit for fault U0122-83
Lost Communication With
Vehicle Dynamics Control
Module - value of signal
protection calculation
incorrect
Checksum fault Check Anti-lock braking system for stored DTCs. Check
CAN Bus Circuit for fault U0122-87
Lost Communication With
Vehicle Dynamics Control
Module - missing message
CAN Timeout Check Anti-lock braking system for stored DTCs. Check
CAN Bus Circuit for fault U0126-00
Lost Communication With
Steering Angle Sensor
Module - no sub type
information
Lost Communication
With Steering Angle
Sensor Module Check Steering angle sensor for stored DTCs. Check
CAN Bus Circuit for fault U0128-87
Lost Communication With
Park Brake Control Module -
missing message
CAN timeout electronic
parking brake module Check Electronic Parking Brake Module for stored DTCs.
Check CAN Bus Circuit for fault U0140-82
Lost Communication With
Body Control Module - alive / sequence counter incorrect / not updated
Alive counter fault Check Central junction box for stored DTCs. Check CAN
Bus Circuit for fault U0140-83
Lost Communication With
Body Control Module - value
of signal protection
calculation incorrect
Checksum fault Check Central junction box for stored DTCs. Check CAN
Bus Circuit for fault U0140-87
Lost Communication With
Body Control Module - missing message
CAN Timeout Check Central junction box for stored DTCs. Check CAN
Bus Circuit for fault U0155-87
Lost Communication With
Instrument Panel Cluster
(Instrument cluster) Control
Module - missing message
CAN timeout instrument
cluster Check Instrument cluster for stored DTCs. Check CAN
Bus Circuit for fault U0300-68
Control Module - event
information
Transmission software
does not match vehicle
network Check Central junction box software level, Check
Transmission control module Software level, Update
software as required using the manufacturer approved
process U0401-08
Invalid Data Received From
Engine control module/PCM
A - Bus Signal Message
Failures
Inaccurate engine speed,
torque information Check Engine control module for stored DTCs, Check
CAN Bus circuit for faults U0401-68
Invalid Data Received from
Engine control module/PCM
A - event information
Inaccurate engine speed,
torque information Check Engine control module for stored DTCs. Check
CAN Bus Circuit for fault U0401-86
Invalid Data Received from
Engine control module/PCM
A - Signal Invalid
Inaccurate engine speed,
torque information Check Engine control module for stored DTCs. Check
CAN Bus Circuit for fault U0404-68
Invalid Data Received from
Gear Shift Control Module A
- event information
Incorrect CAN data
received from
Transmission shift
module Check Transmission Shift Module for stored DTCs.
Refer to Circuit diagrams and check CAN and LIN Bus
for Circuit fault U0404-81
Invalid Data Received from
Gear Shift Control Module A
- Invalid Serial Data
Received
Incorrect LIN data
received from
Transmission shift
module Check Transmission Shift Module for stored DTCs.
Refer to Circuit diagrams and check CAN and LIN Bus
for Circuit fault www.JagDocs.com

DTC Description Possible Causes Action C1A67-98 Forward Looking Sensor
- Component or system
over temperature
Speed control sensor
internal temperature
exceeded threshold
Allow system to cool. Note: This DTC will be cleared
automatically when environmental conditions allow P174E-81
Output Shaft
Speed/ABS Wheel
Speed Correlation -
Invalid serial data
received
Follow speed is
mis-calculated to too
high a value
Clear DTC and re-test U0001-88
High Speed CAN
Communication Bus -
Bus off
Vehicle CAN Bus off
condition
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Carry out CAN network integrity tests using
the manufacturer approved diagnostic system U0100-00
Lost Communications
With ECM/PCM "A" - No
sub type information
ECM missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check ECM for related DTCs and refer to the
relevant DTC Index U0101-00
Lost Communications
With TCM - No sub
type information
TCM missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check TCM for related DTCs and refer to the
relevant DTC Index U0103-00
Lost Communication
With Gear Shift Control
Module A - No sub type
information
No sub type information
Refer to the electrical circuit diagrams and check the
power and ground connections to the Transmission
Shift Module. Using the manufacturer approved
diagnostic system, complete a CAN network integrity
test. Refer to the electrical circuit diagrams and
check the CAN network between the Transmission
Shift Module and Speed Control Module U0103-87
Lost Communication
With Gear Shift Module
- Missing Message
Transmission shift
module missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check transmission shift module for related
DTCs and refer to the relevant DTC Index U0121-00
Lost Communication
With Anti-lock Brake
System (ABS) Control
Module - No sub type
information
ABS missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check ABS for related DTCs and refer to the
relevant DTC Index U0128-00
Lost Communications
With Park Brake Module
- No sub type
information
Parking brake missing
message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check parking brake module for related
DTCs and refer to the relevant DTC Index U0155-00
Lost Communications
With Instrument Panel
Cluster (IPC) Control
Module - No sub type
information
Instrument cluster
missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check instrument cluster for related DTCs
and refer to the relevant DTC Index U0300-00
Internal Control Module
Software
Incompatibility - No
sub type information
Invalid configuration
message is received
Re-configure the speed control module using the
manufacturer approved diagnostic system. Clear
DTCs and re-test. If DTC still logged, suspect
incorrect speed control module installed. Check and
install a new module as required, refer to new
module/component installation note at top of DTC
Index U0300-55
Internal Control Module
Software
Incompatibility - Not
configured
RJB - at least one of the
car configuration
parameters is not
configured
Re-configure the RJB using the manufacturer
approved diagnostic system www.JagDocs.com

DTC Description Possible Causes Action U0401-00
Invalid Data Received
From ECM/PCM A - No
sub type information
ECM did not respond
properly to speed control
cancel or auto brake
cancel request
Check ECM for related DTCs and refer to relevant
DTC Index U0401-67
Invalid Data Received
From ECM/PCM A -
Signal incorrect after
event
ECM did not respond
properly to speed control
resume request
Check ECM for related DTCs and refer to relevant
DTC Index U0401-81
Invalid Data Received
From ECM/PCM A -
Invalid serial data
received
Invalid data received
from engine control
module
Bus signal/message
failure
Speed control inhibited
by ECM
Check the Engine Control Module for related DTCs
and refer to relevant DTC Index. If U040181 is
logged as historic but no other DTCs have logged in
the engine control module at the same time and
distance, it may be caused by cranking with low
voltage conditions. Check battery and charging
system according to instructions in the battery care
manual. Install the latest Engine Control Module
software using the manufacturer approved diagnostic
system, contact Dealer Technical Support before
replacing components U0415-53
Invalid Data Received
From Anti-Lock Braking
System (ABS) Control
Module - De-activated
Event information
Deactivated
Check the Anti-Lock Braking System Module for
related DTCs and refer to the relevant DTC index U0415-81
Invalid Data Received
From Anti-lock Brake
System (ABS) Control
Module - Invalid serial
data received
Stability assist fault
Check ABS module for related DTCs and refer to
relevant DTC Index U0417-67
Invalid Data Received
From Park Brake
Control Module - Signal
incorrect after event
Parking brake module did
not respond properly to
apply request
Check parking brake module for related DTCs and
refer to relevant DTC Index U0417-81
Invalid Data Received
From Park Brake
Control Module -
Invalid serial data
received
Speed control inhibited
by parking brake module
Check parking brake module for related DTCs and
refer to relevant DTC Index U0418-68
Invalid Data Received
From Brake System
Control Module - Event
information
Event information
Check the Anti-Lock Braking System Module for
related DTCs and refer to the relevant DTC index U0421-81
Invalid Data Received
From Suspension
Control Module 'A' -
Invalid serial data
received
Invalid serial data
received
Check the Suspension Control Module for related
DTCs and refer to the relevant DTC index U0423-81
Invalid Data Received
From Instrument Panel
Control Module -
Invalid serial data
received
Speed control inhibited
by instrument cluster
Check instrument cluster, CJB and RJB for related
DTCs and refer to relevant DTC Index U1A00-88
Private Communication
Network - Bus off
Bus off
The module setting this code has disabled CAN
transmission. Check for other bus off codes. Check
the module and circuits. Refer to the electrical circuit
diagrams. Clear all DTCs and road test the vehicle. If
the concern reoccurs contact Dealer Technical
Support for further advice. Under no circumstance
should any parts be replaced to overcome this issue U1A14-49
CAN Initialisation
Failure - Internal
electronic failure
Internal electronic failure
Suspect the speed control module. Check and install
a new module as required, refer to the new
module/component installation note at the top of
the DTC Index U2101-00
Control Module
Configuration
Incompatible - No sub
type information
Data sent from RJB is
invalid
Check/amend Car Configuration File using the
manufacturer approved diagnostic system, clear DTC
and re-test. If DTC remains, re-configure RJB using
manufacturer approved diagnostic system, clear DTC
and re-test. If DTC remains check RJB for DTCs and

Published: 11-May-2011
Speed Control - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Speed Control Module
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Speed Control Sensor Adjustment (310-03C Speed Control - V8 5.0L Petrol/V8 S/C 5.0L Petrol, General Procedures).

3. Refer to: Instrument Panel Lower Trim Panel (501-12 Instrument Panel and Console, Removal and Installation).

4.