2010 JAGUAR XFR ignition

Symptom Possible Cause Action Vehicle’s current position
mark turns independently
Electrical harness open/short
circuit, dis-connected
Component failure
Vehicle on a turntable in a parking
building GO to Pinpoint Test E. Car current position not
stable
Electrical harness open/short
circuit, dis-connected
Component failure GO to Pinpoint Test F. Map display is incomplete
Map disc contaminated/damaged
Electrical harness open/short
circuit, dis-connected
Incorrect market map disc
Component failure GO to Pinpoint Test G. No navigation voice guidance
Voice guidance soft key set to OFF
position
Volume level set too low
Component failure GO to Pinpoint Test H. No response to pressing
navigation menu
Interruption during map disc
update
Electrical harness open/short
circuit, dis-connected
Incorrect Navigation Control
Module (NCM) installed
Incorrect car configuration data
received GO to Pinpoint Test I. 'NO DVD PLEASE INSERT MAP
DVD' message is displayed
A disc other than the map disc is
inserted Insert the correct map disc 'UNABLE TO READ DATA
CONSULT YOUR DEALER'
message is displayed
DVD player abnormality Check and install a new Navigation Control Module
(NCM) as required. Refer to the new
module/component installation note at top of DTC
Index. 'UNABLE TO READ DATA TEMPERATURE IS TOO HIGH'
message is displayed
Operating temperature has been
exceeded
Navigation Control Module (NCM)
internal temperature is high Move the vehicle to a cool location, and turn the
engine OFF. Wait for a while, then verify conditions
again. If the temperature around the Navigation
Control Module (NCM) is high, take measures to lower
temperature 'UNABLE TO READ DVD
CORRECTLY CHECK IF THE
DVD IS DAMAGED OR DIRTY'
message is displayed
Check map disc for contamination,
deformation, cracks, scratches or
non-genuine disc Clean the map disc and retest, replace the map disc 'UNABLE TO READ DATA
CHECK IF MAP DVD IS
CORRECT' message is displayed
Incorrect DVD map disc is inserted Insert a map disc with the correct part number Pinpoint Tests

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 Program is in operation, prior to the
installation of a new module/component.


Navigation Diagnostic Screen Access

1. With the vehicle at rest, place the ignition switch in either "ACC", "ON", or start the engine.
2.On the "Menu" screen, press the top center of the screen for more than three seconds.
3. Enter the PIN code, and then touch "OK". 660: Diagnosis Menu screen 661: System Check screen (DTC code
verification screen) 662: GPS Information screen.
4. The diagnostics screen will be displayed.

PINPOINT TEST A : POOR SATELLITE RECEPTION www.JagDocs.com

PINPOINT TEST B : MAP DISC WILL NOT INSERT/EJECT
NOTE: Ensure the parking brake is applied, and ignition status is set to Auxiliary or ON. TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: CHECK NAVIGATION DISC SLOT SHUTTER 1 Check the navigation map disc slot shutter is open. Is the navigation map disc slot shutter is open? Yes
GO to B2. No
Open the map disc slot shutter.
GO to B2. B2: CHECK NAVIGATION MAP DISC WILL INSERT/EJECT 1 Check that it is possible to insert/eject navigation map disc. Is it possible to insert/eject navigation map disc? Yes
Operation is normal.
No
Refer to the electrical circuit diagrams and check power supply and ground connections to the Navigation
Control Module (NCM). If power supply and ground connections are good, install a new Navigation Control
Module (NCM) as required. Refer to the new module/component installation note at top of DTC Index.
PINPOINT TEST C : BLACK SCREEN (NAVIGATION MAP SCREEN DOES NOT DISPLAY)
NOTE: Ensure the parking brake is applied, and ignition status is set to Auxiliary or ON. TEST
CONDITIONS DETAILS/RESULTS/ACTIONS C1: CHECK SCREEN SAVER FUNCTION 1 Check the screen saver function operation. Does the screen saver function operate? Yes
Press the display panel button.GO to C2. No
GO to C2. C2: CHECK DISPLAY BACKLIGHT 1 Check the display backlight operation. Does the display backlight operate? Yes
Refer to the electrical circuit diagrams and check the GVIF cable between Navigation Control Module
(NCM) and HLDF screen is properly connected.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected, check
and install a new GVIF cable as required. Refer to the new module/component installation note at top of
DTC Index.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected and
NOT damaged, check and install a new Navigation Control Module (NCM) as required. Refer to the new
module/component installation note at top of DTC Index.
Re-check the system.
No
Check the HLDF display.
Re-check the system.
PINPOINT TEST D : NAVIGATION MAP SCREEN COLOUR IS ABNORMAL TEST
CONDITIONS DETAILS/RESULTS/ACTIONS D1: COLOUR BAR CHECK 1 Carry out the display diagnostics 'colour bar check' (PIN code 660). Are the results of the display diagnostics 'colour bar check' normal? Yes
Check the HLDF display.
Re-check the system.
No
Check the condition of the map disc for dirt or scratches.
Refer to the electrical circuit diagrams and check the GVIF cable between Navigation Control Module
(NCM) and HLDF screen is properly connected.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected, check
and install a new GVIF cable as required. Refer to the new module/component installation note at top of
DTC Index.
If the GVIF cable between Navigation Control Module (NCM) and HLDF screen is properly connected and
NOT damaged, check and install a new Navigation Control Module (NCM) as required. Refer to the new

TEST
CONDITIONS DETAILS/RESULTS/ACTIONS E1: VEHICLES CURRENT POSITION MARK TURNS INDEPENDENTLY 1 Determine if the ignition status was turned to Auxiliary or On, while the vehicle was in motion with steering turned such as after an engine stall. Was ignition status set to Auxiliary or On?
Yes
The angular speed of the vehicle at the time of the ignition status change will be logged as the standard
value. To re-set the standard value, turn ignition status to 'OFF' then to 'Auxiliary' or 'On' with the
vehicle stationary.
Re-test the vehicle.
No
Check and install a new Navigation Control Module (NCM) as required. Refer to the new module/component installation note at top of DTC Index.
PINPOINT TEST F : CAR CURRENT POSITION NOT STABLE TEST
CONDITIONS DETAILS/RESULTS/ACTIONS F1: SYSTEM CHECK FOR DTCS 1 Check the system for DTCs which may be logged. Are any system DTCs logged? Yes
Carry out repair actions to correct the DTCs logged.
Re-check the system for car current position not stable.
No
GO to F2. F2: VEHICLE SPEED INPUT CHECK 1 Select Vehicle Sensor from the navigation diagnostic menu screen (PIN code 660), check Current speed. The current speed must match the speedometer. From the Vehicle Sensor screen, does the current speed must match the speedometer? Yes
GO to F3. No
Carry out MOST ring circuit checks.
Check the Anti-Lock Brake System Module for related DTCs and refer to the relevant DTC Index.
Carry out network integrity tests using the manufacturer approved diagnostic system. Refer to electrical
circuit diagrams and check CAN circuits if required. Repair wiring harness as required. F3: CHECK NUMBER OF SATELLITES 1 From the navigation diagnostic GPS information screen (PIN code 662), check the number of satellites displayed. Is the number of satellites displayed on the screen 0? Yes
Carry out pinpoint test A "Poor Satellite Reception"
No
GO to F4. F4: CHECK IF SYMPTOMS ARE OCCURRING IN PARTICULAR LOCATIONS 1 Confirm if the 'car current position not stable' symptom is occurring in particular locations. Is the 'car current position not stable' symptom occurring in particular locations? Yes
Signal reflections from buildings or a particular location may be responsible.
No
Carry out pinpoint test A "Poor Satellite Reception"
PINPOINT TEST G : MAP DISPLAY IS INCOMPLETE TEST
CONDITIONS DETAILS/RESULTS/ACTIONS G1: SYSTEM CHECK FOR DTCS 1 Check the system for DTCs which may be logged. Are any system DTCs logged? Yes
Carry out repair actions to correct the DTCs logged.
Re-check the system for 'Map display is incomplete'.
No
GO to G2. G2: CHECK MAP DISC 1 Check map disc for contamination, deformation, cracks, scratches or non-genuine disc and correct market. module/component installation note at top of DTC Index.
Re-check the system.

DTC Description Possible Cause Action C1B1415 Sensor Supply #1
Window position hall sensors
supply 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 window
position hall sensors supply circuit for short to power, open circuit C1B1511 Sensor Supply #2
Hall sensor supply circuit - short
to ground Refer to the electrical circuit diagrams and test window
position hall sensors supply circuit for short to ground C1B1515 Sensor Supply #2
Hall sensor supply 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 window
position hall sensors supply circuit for short to power, open circuit U001000
Medium Speed CAN
Communication Bus
Bus off Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system U014000
Lost Communication
With Body Control
Module
Missing message from CJB Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system U020800
Lost Communication
With Seat Control
Module "A"
Missing message from driver
seat module Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system U030000
Internal Control
Module Software
Incompatibility
Invalid configuration message is
received Re-configure the RJB using the manufacturer approved
diagnostic system. Clear the DTC and retest. If the DTC
remains suspect the DDM. Check and install a new
module as required, refer to the new module/component
installation note at the top of the DTC Index U200224 Switch
Signal stuck high Clear DTC and re-test. If DTC remains, suspect the
passenger side window switch. Check and install a new passenger side window switch U200424
Auxiliary Switch
Pack
Left or right rear door local
switch - signal stuck high Check for stuck rear window switch. Refer to the
electrical circuit diagrams and check left or right rear
door local switch circuit for short circuit U201011 Switch illumination
Rear window switch illumination
circuit - short to ground Refer to the electrical circuit diagrams and check rear
window switch illumination circuit for short to ground U201208
Car Configuration
Parameter(s)
Bus signal/message failures Cycle the ignition status and re-test. If DTC remains,
re-configure the RJB using the manufacturer approved diagnostic system U201324 Switch Pack
Signal stuck high Clear DTC and re-test. If DTC remains, install a new
driver door switch pack U201444
Control Module
Hardware
Data memory failure Suspect the DDM. Check and install a new DDM as
required, refer to the new module/component
installation note at the top of the DTC Index U210000
Initial Configuration
Not Complete
No sub type information Re-configure the DDM using the manufacturer approved
diagnostic system U300049 Control Module
Internal electronic failure Suspect the DDM. Check and install a new DDM as
required, refer to the new module/component
installation note at the top of the DTC Index U300255
Vehicle
Identification
Number
Not configured Re-configure the DDM as new using the manufacturer
approved diagnostic system and re-test. If DTC remains
install a new module, refer to the new
module/component installation note at the top of the
DTC Index U300281
Vehicle
Identification
Number (VIN)
Vehicle/component mis-match.
Corrupt VIN data being
transmitted, module previously
installed to other vehicle Check and install correct/new module as required, refer
to the new module/component installation note at the
top of the DTC Index U300362 Battery voltage
Mis-match in battery voltage, of
2 volts or more, between DDM
and RJB Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system

DTC Description Possible Cause Action C1B1415 Sensor Supply #1
Front window position hall
sensor supply 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 front
window position hall sensor supply circuit for short to power, open circuit C1B1511 Sensor Supply #2
Hall sensor supply circuit - short
to ground Refer to the electrical circuit diagrams and test window
position hall sensors supply circuit for short to ground C1B1515 Sensor Supply #2
Hall sensor supply 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 window
position hall sensors supply circuit for short to power, open circuit U001000
Medium Speed CAN
Communication Bus
Bus off Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system U014000
Lost Communication
With Body Control
Module
Missing message from CJB Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system U020800
Lost Communication
With Seat Control
Module "A"
Missing message from driver
seat module Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system U030000
Internal Control
Module Software
Incompatibility
Invalid configuration message is
received Re-configure the RJB using the manufacturer approved
diagnostic system. Clear the DTC and retest. If the DTC
remains suspect the PDM. Check and install a new
module as required, refer to the new module/component
installation note at the top of the DTC Index U200224 Switch
Signal stuck high Clear DTC and re-test. If DTC remains, suspect the
passenger side window switch. Check and install a new passenger side window switch U200424
Auxiliary Switch
Pack
Left or right rear door local
switch - signal stuck high Check for stuck rear window switch. Refer to the
electrical circuit diagrams and check left or right rear
door local switch circuit for short circuit U201011 Switch illumination
Rear window switch illumination
circuit - short to ground Refer to the electrical circuit diagrams and check rear
window switch illumination circuit for short to ground U201208
Car Configuration
Parameter(s)
Bus signal/message failures Cycle the ignition status and re-test. If DTC remains,
re-configure the RJB using the manufacturer approved diagnostic system U201324 Switch Pack
Signal stuck high Clear DTC and re-test. If DTC remains, install a new
driver door switch pack U201444
Control Module
Hardware
Data memory failure Suspect the PDM. Check and install a new PDM as
required, refer to the new module/component
installation note at the top of the DTC Index U210000
Initial Configuration
Not Complete
No sub type information Re-configure the PDM using the manufacturer approved
diagnostic system U300049 Control Module
Internal electronic failure Suspect the PDM. Check and install a new PDM as
required, refer to the new module/component
installation note at the top of the DTC Index U300255
Vehicle
Identification
Number
Not configured Re-configure the PDM as new using the manufacturer
approved diagnostic system and re-test. If DTC remains
install a new module, refer to the new
module/component installation note at the top of the
DTC Index U300281
Vehicle
Identification
Number (VIN)
Vehicle/component mis-match.
Corrupt VIN data being
transmitted, module previously
installed to other vehicle Check and install correct/new module as required, refer
to the new module/component installation note at the
top of the DTC Index U300362 Battery voltage
Mis-match in battery voltage, of
2 volts or more, between PDM
and RJB Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system

8 LH door module 9 Exterior mirror control switches
System Operation
The rear view mirrors comprise an interior mirror mounted to the windshield, and an exterior mirror mounted on each front door
cheater. The types of mirrors and associated operating functions installed depend on the specification and trim level of the
vehicle.

Interior Mirrors

The interior rear view mirror is provided as a manual dimming or an electrically operated automatic dimming type.

The manual dimming mirror comprises a prismatic glass housed within a surrounding case that is attached with a ball joint
connector to the mirror stem. Manual dimming of the mirror is achieved using the lever mounted on the underside of the mirror
body. Operating the lever will tilt the mirror head from the 'day' position to the 'night' position.

The automatic dimming mirror comprises an electro-chromatic glass housed within a surrounding case that is attached with a
ball joint connector to the mirror stem. The mirror stem incorporates an 8-pin electrical connector that is connected to the roof
panel wiring harness. The wiring harness provides hardwired and a LIN connection to the CJB.
Light sensors are mounted on the front and rear of the mirror surround case. The sensors control the automatic dimming
feature to reduce glare from the headlights of following vehicles.

The automatic dimming function is permanently active when the ignition is in power mode 4 (Accessory) and power mode 6
(Ignition). The forward facing light sensor monitors the ambient light level at the front of the vehicle; the rearward facing light
sensor monitors the light level coming from the rear of the vehicle. When light from the rear of the vehicle exceeds the
ambient light level from the front of the vehicle, the automatic dimming circuit darkens the interior mirror surface.

Automatic dimming is inhibited when reverse gear is selected to provide the driver with maximum vision. On vehicles with
automatic transmission, the reverse gear signal is provided by the TCM (transmission control module) via the high speed CAN bus to the CJB. The CJB then provides a power feed to the mirror. On vehicles with manual transmission, the reverse gear signal is provided by a transmission switch that is hardwired to the CJB.
Exterior Mirrors

Electrically operated and heated exterior mirrors are installed as standard. Depending on the specification and trim level of the
vehicle, the following options are available:

Power fold (switch pack operated feature) and auto fold (remote handset operated feature)
Memory recall
Reverse gear mirror dip
Mirror heating
Exterior mirror lamps.

The power fold/auto fold feature is available only when power fold mirrors are installed to the vehicle.

The mirrors can be configured to automatically fold when the vehicle is locked and unfold when unlocked. This feature can be
enabled or disabled via the Vehicle settings area of the touch screen:

Select 'Settings' from the touch screen Home menu.
Select ' Security/Vehicle'
Select 'Windows/Mirrors'
Select Power Fold 'On' or 'Off' as appropriate.

The pasenger side mirror can be configured to automatically dip when reverse gear is selected. This feature can be enabled or
disabled via the Vehicle settings area of the touch screen:

Select 'Settings' from the touch screen Home menu.
Select ' Security/Vehicle'
Select 'Windows/Mirrors'
Select Reverse dip 'On' or 'Off' as appropriate.

The LH door mirror incorporates an ambient air temperature sensor that is hardwired to the ECM (engine control module). The ECM is connected to the CJB and other control modules via the high speed CAN bus. The sensor provides information to the ECM that is then transmitted on the medium speed CAN bus for use by other control modules. On vehicles installed with a high-line instrument cluster, the CJB transmits the temperature signal to the instrument cluster that provides a display of the ambient temperature to the driver.
The exterior mirror lamps are controlled by the interior lighting function.

The door mirrors are controlled using a switch pack located on the driver's door. The switch pack contains 2 non-latching mirror
select switches labeled 'L' and 'R' and a 4-way directional joystick. The switch pack is connected to the driver door control
module via the LIN bus. The driver and front passenger door control modules are connected via the medium speed CAN bus. A hardwired connection between each door control module and the corresponding door mirror, provides the supply and ground
paths for the mirror motors.
Each exterior door mirror incorporates 2 motors to control horizontal (left/right) and vertical (up/down) adjustments. www.JagDocs.com

On vehicles installed with a driver's power operated memory seat and memory exterior mirrors, a potentiometer is incorporated
within each mirror motor and is used to provide information regarding the actual motor positions. The current position and
memory positions of each door mirror motor are maintained and stored within the corresponding door control module.

The memory exterior mirror positions are also monitored and stored within door control module memory when the reverse gear
mirror dip function is used.

When reverse gear is selected, the door control module stores the current mirror positions and will then dip the passenger
mirror glass to a default dip position. While reverse gear is selected it is possible to store a preferred dipped mirror position by
adjusting the driver/passenger mirror glass to the desired position via the mirror switch pack. When the desired position is
achieved using the switch, the new dip positions will be automatically stored by the door control module when reverse gear is
de-selected. Therefore when reverse gear is re-selected, the dip position recalled by the door control module will be the new
reverse gear mirror dip stored position. When reverse gear is deselected the mirror glass will automatically move to the previous
stored position prior to reverse gear selection.

If the driver selects a memory recall function using the memory seat switch pack, the driver's memory seat and exterior
memory mirrors are moved to a stored memory position.

Exterior mirrors with the power fold/auto fold feature incorporate a motor located in the hinge of each exterior mirror arm.
Operation of the power fold feature is achieved using the exterior mirror switch pack. Operation of the auto fold feature is
achieved using the remote handset.
The power fold function is active when the ignition is in power mode 6 (Ignition).

Both exterior mirrors will power fold when the mirror switch pack 'L' and 'R' switches are pressed together. Pressing the
switches again will unfold the mirrors.

When the instrument cluster is configured for the auto fold feature, the mirrors will fold in when the remote handset lock
button is pressed. The mirrors will unfold when the vehicle is unlocked using the remote handset unlock button.


NOTE: If the mirrors are folded in using the mirror switch pack (power fold) and the vehicle is then locked, subsequent
unlocking of the vehicle will not unfold the mirrors.

When the remote handset unlock button is operated, the CJB recognizes the remote handset for that vehicle and acknowledges the request. The door control modules are connected directly to the AJB (auxiliary junction box) for power supply to the
exterior mirror folding motors.

When the vehicle is locked the door control modules reverse the polarity of the mirror fold motor, power and ground
connections to operate the mirrors in the opposite direction.

Exterior mirror heating is provided with heater elements bonded to the back of the mirror glass. Power supply for the mirror
heating elements is provided by the corresponding driver or passenger door control module via the RJB. The door control modules receive a power supply from the RJB, and are both connected on the medium speed CAN bus to the ATC (automatic temperature control) module. A ground terminal from each door control module completes the circuit. The ATC module automatically controls the mirror heating function whenever the ignition is in power mode 4 (Accessory) and power mode 6
(Ignition).

Operation of the exterior mirror heaters is fully automatic and not controllable by the driver. Exterior mirror heater operation is
determined by ambient air temperature and windshield wiper status. When ambient air temperature reaches a pre-determined
level, the ATC module broadcasts an exterior mirror heating request to the door modules over the medium speed CAN bus. On receipt of this message, the door modules provide feed and ground connections to both exterior mirror heater elements.

The mirror heating is controlled in two phases, the initial heating phase and a second PWM (pulse width modulation) controlled
phase. In the first phase the heater elements in the mirrors are permanently powered for a pre-determined length of time. This
length of time varies with the ambient temperature. During the second PWM phase, the heater elements are turned on and off every 30 seconds. The amount of time the exterior mirror heaters are operational increases if the windshield wipers are
switched on. This ensures the mirrors remain mist free in damp and wet conditions, where there is an increased risk of misting.

7 Front seat climate control module 8 Passenger seat squab climate module 9 Drivers seat cushion climate module 10 Passenger seat cushion climate module 11 Drivers seat squab climate module 12 Passenger seat cushion heater element 13 Passenger seat squab heater element 14 Drivers seat cushion heater element 15 Drivers seat squab heater element 16 CJB


HEATED SEATS - OPERATION

Heated Front Seats System Operation

The TSD receives a fused power supply from the RJB. One of the 3 seat heat temperature selections made by the driver or passenger using the TSD soft keys are passed from the TSD on the MOST ring to the Information and Entertainment module.
The information and entertainment module processes the information and transmits the request on the medium speed CAN bus to the ATC module.
The cushion heaters have a thermal sensor which supplies a feed back signal back to the CJB. The squab heater elements do not have a thermal sensor and are maintained at the same temperature as the seat cushion elements.

The ATC module reacts to the driver request information received from the information and entertainment module and requests the CJB to activate the seat heaters. The CJB measures the returned temperature signals from the thermal sensors and relays the temperature signals back to the ATC module. The ATC module then uses the measured seat element temperatures to provide closed-loop control of the heater elements to maintain the temperature at one the 3 heat ranges selected.


NOTE: To prevent excessive battery discharge, the heated front seats will only operate when the engine is running.

Heated and Cooled Front Seats

The TSD receives a fused power supply from the RJB. Selections made by the driver using the TSD soft keys are passed from the TSD on the MOST ring to the Information and Entertainment module. The information and entertainment module processes
the information and transmits the request on the medium speed CAN bus to the front seat climate control module. The front seat climate control module is located beneath the RH (right-hand) front seat, on the floor cross member.

The front seat climate control module receives its power supplies from the CJB. Heating and cooling requests are generated using the soft buttons on the TSD. These requests are transmitted to the information and entertainment module over the
MOST ring. The Information and Entertainment module forwards these requests to the front seat climate control module over
the medium speed CAN bus.
The front seat climate control module supplies power to the two climate modules in each seat. The temperature sensor in each
climate module is monitored by the front seat climate control module which uses the temperature information to control the
Peltier cells accordingly and also the blower fans to distribute the heated or cooled air.


NOTE: To prevent excessive battery discharge, the heated and cooled front seats will only operate when the engine is
running.
Electric Driver's Seat Adjustment - Non-Memory Seats

The CJB supplies 3 power supplies to the driver's seat switchpack. The fused supplies provide power for the seat height and squab recline, the seat slide and seat tilt and the lumbar adjustment respectively. The CJB only provides the power to the driver's seat switch pack when the ignition is on (power mode 6).

For the seat movement motors, when the applicable switch is operated, the power is supplied to the applicable side of the
motor and the ground path is completed to operate the motor in the required direction. To move the motor in the opposite
direction the polarity is reversed.

For the lumbar adjustment, when the switch is operated in the inflate position, power is supplied to the pump motor to inflate
the lumbar support. When the switch is operated in the opposite direction, the power energizes a solenoid which in turn opens
a valve to deflate the lumbar support.
Electric Passenger Seat Adjustment ( 8, 10 and 12 way)

The CJB supplies 3 power supplies to the passenger seat switchpack. The fused supplies provide power for the seat height and squab recline, the seat slide and seat tilt and the head restraint and lumbar adjustment respectively. The CJB only provides the power to the passenger seat switch pack when the ignition is on (power mode 6).

For the seat movement and head restraint motors, when the applicable switch is operated, the power is supplied to the
applicable side of the motor and the ground path is completed to operate the motor in the required direction. To move the