seat control module JAGUAR XFR 2010 1.G Repair Manual

Tire Pressure Monitoring System (TPMS) control module 15 Entertainment system control module 16 Climate seat module COMPONENT LOCATION - HIGH SPEED CAN BUS



Item Description NOTE: LHD vehicle shown 1 ECM - V8 shown 2 Headlamp leveling control module 3 Occupant classification system control module 4 Adaptive damping control module 5 Instrument cluster 6 Electronic transmission selector 7 Electronic Parking Brake (EPB) module 8 RCM (restraints control module)

Instrument cluster
High speed CAN
(controller area network) bus Receives data from other vehicle systems to provide
information to the driver. Also functions as the gateway for the bus systems. Instrument panel. Steering column
High speed CAN bus Controls the locking and unlocking of the steering
column. Upper steering column. Diagnostic socket
High speed CAN bus Allows the transfer of vehicle information using a
Jaguar approved diagnostic system or other diagnostic tool. In the lower instrument panel
on the driver's side, adjacent
to the start control module. RCM (restraints control module) High speed CAN bus Controls the deployment of the supplementary
restraint components. At rear of floor console. TCM (transmission
control module) High speed CAN bus Controls automatic transmission operation.
Inside the transmission and
accessible via the fluid pan. ECM (engine control
module) High speed CAN bus Controls engine management and fuel system
operation. Rear of the engine
compartment on the
bulkhead. ABS (anti-lock brake
system) High speed CAN bus Controls all aspects of the braking system
Rear of the engine
compartment on the
bulkhead. Headlamp leveling
module High speed CAN bus Controls the static dynamic headlamp leveling
function. In the lower instrument panel, behind the glovebox. Occupant classification
system control module (NAS only) High speed CAN bus Detects when a passenger is in the front passenger
seat and can determine their size and weight. Below the front passenger
seat. Adaptive damping
control module High speed CAN bus Controls the adjustment of the dampers.
Below the front passenger
seat. Electronic Parking Brake
(EPB) module High speed CAN bus Controls the application and release of the electronic
parking brake. In the luggage compartment,
above the RH (right-hand)
wheel arch. Pedestrian protection
module High speed CAN bus Controls and monitors the pedestrian protection system. LH (left-hand) 'A' pillar. Adaptive speed control
module High speed CAN bus Controls the vehicle's road speed in relation to other
vehicles when in speed control mode. Behind the instrument panel
on the driver's side. Electronic transmission
selector High speed CAN bus Allows the driver to electronically select the required
automatic transmission mode. Transmits driver
selections to the TCM. In the floor console. Jaguar Drive control
module High speed CAN bus Controls the Jaguar Drive function and communicates
with other system modules. Integral with the electronic
transmission selector
software in the floor console. CJB
Medium speed CAN bus Controls body functions and power distribution. On RH 'A' pillar. Diagnostic socket
Medium speed CAN bus Allows the transfer of vehicle information using a
Jaguar approved diagnostic system or other diagnostic tool. In the lower instrument panel
on the driver's side, adjacent
to the start control module. Passenger door module
Medium speed CAN bus Controls window and locking functions. In the front passenger door. Parking aid module
Medium speed CAN bus Controls the parking aid system.
In the LH side of the luggage compartment, adjacent to
the keyless vehicle module. www.JagDocs.com

Module Network System Function Vehicle Location
Driver's seat module Medium speed CAN Controls driver's seat positioning and also memory Below the driver's seat. bus functions of other personalized functions.
Instrument cluster Medium speed CAN Receives data from other systems to provide driver In the instrument panel. bus information.
Driver's door module Medium speed CAN Controls window and locking functions. In the driver's door. bus
ATC (automatic Medium speed CAN Contains controls for the heating and air On the end of the air
temperature control)
module bus conditioning systems.
conditioning evaporator and
blower assembly.
Information control Medium speed CAN Contains controls for the entertainment systems. In the instrument panel module bus
below the integrated control
panel.
Integrated control Medium speed CAN Contains controls for the entertainment systems and In the instrument panel. panel bus
gateway between audio system and other vehicle
systems.
Front seat climate Medium speed CAN Controls the temperature requirements of the driver Below the RH front seat. control module bus and passenger front seats.
LH blind spot Medium speed CAN Controls the operating parameters of the system and Behind the outer part of the monitoring module bus provides driver indications and fault monitoring.
rear bumper, rearward of the
rear wheel.
RH blind spot Medium speed CAN Controls the operating parameters of the system and Behind the outer part of the monitoring module bus provides driver indications and fault monitoring.
rear bumper, rearward of the
rear wheel.
Keyless vehicle module Medium speed CAN Allows the vehicle to be opened and closed without In the LH side of the luggage bus the use of a key.
compartment, adjacent to
the parking aid module.
RJB (rear junction box) Medium speed CAN Controls body functions and power distribution. RH of luggage compartment. bus
Tire pressure Medium speed CAN Monitors the vehicle tires to warn of deflation. Below the rear of the floor monitoring control
module bus console.
TCM K Bus Data transfer between TCM and diagnostic socket. NOTE: Only fitted to early build vehicles. Inside the transmission and
accessible by removal of the
fluid pan.
Driver's side rear door
module LIN (local
interconnect
network) Controls window and locking operation. In the driver's side rear door.
Passenger side rear
door module LIN Controls window and locking operation. In the passenger side rear
door.
Driver's door module LIN Memory/adjustment functions for seat, steering
column and mirrors and door security functions. In the driver's door.
Passenger front door
module LIN Memory/adjustment functions for seat, steering
column and mirrors and door security functions. In the passenger door.
Driver's door switches LIN Transmit driver selections to the driver's door
module. In the driver's door panel.
ECM LIN Receives a load signal from the generator. In the engine compartment
on the bulkhead.
Generator LIN Provide load signal to the ECM. On the LH side at the front of the engine.
Driver's seat module LIN Control position of driver's seat. Below the driver's seat on
the floor pan.
Driver's seat switches LIN Provide driver selection inputs to the driver's seat
module. On the outside of the trim
panel on the driver's seat.
Air quality sensor LIN Measures quality of air entering the vehicle interior. At the front of the vehicle,
behind the air intake grill.
Windshield (defrost)
stepper motor LIN Moves flaps within the heater assembly to direct air
flow to the windshield. On the heater assembly.
Face/feet stepper motor LIN Moves flaps within the heater assembly to direct air
flow to instrument panel vents and/or footwell. On the heater assembly.
LH temperature blend
stepper motor
RH temperature blend
stepper motor LIN Moves flaps within the heater assembly to control
temperature in LH side footwell.
LIN Moves flaps within the heater assembly to direct air
flow to RH side footwell. On the heater assembly.
On the heater assembly.
Electric booster heater LIN Controls operation of the electric booster heater. Inside the heater assembly.
LH outer face level vent LIN Controls the operation of the face level vent stepper In the instrument panel.
motor.
LH inner face level vent LIN Controls the operation of the face level vent stepper In the instrument panel.
motor.
RH inner face level vent LIN Controls operation of the face level vent stepper
motor.
RH outer face level vent LIN Controls operation of the face level vent stepper
motor. In the instrument panel.
In the instrument panel.
ATC module LIN Controls operation of the climate system functions. In the instrument panel.
Steering wheel audio
switches LIN Converts analogue signals from steering wheel
switches into digital messages. On the steering wheel.

Module Network System Function Vehicle Location
Steering wheel
clockspring LIN Passes digital messages from the steering wheel
audio switches to the instrument cluster. Behind the steering wheel,
on the upper steering
column.
Instrument cluster LIN Receives digital signals from other vehicle systems. On the driver's side of the
instrument panel.
Battery backed sounder LIN Activated by CJB when alarm trigger is received. In the LH side of the engine compartment, near the
bulkhead.
CJB LIN Controls body functions and power distribution. On the RH 'A' pillar.
RJB LIN Controls body functions and power distribution. On the RH of the luggage compartment.
Battery monitoring
system module

Intrusion detection
module LIN Monitors the condition and charge of the vehicle
battery.

LIN Detects movement in the vehicle interior and
activates the anti-theft system. On the vehicle battery
positive terminal in the
luggage compartment.
In the front overhead
console.
Rain/light sensor LIN Detects ambient light levels and moisture on the
windscreen for operation of the automatic
headlamps and wiper systems.
Start control module LIN Used to identify the Smart Key - component of the
keyless start system.
Rear view camera LIN Passes digital images data from the rear view
camera to the RJB On the inside of the
windshield behind the interior
rear view mirror.
In the lower instrument panel
on the driver's side.
In the luggage compartment
lid trim finisher.
Driver's window switch LIN Controls operation of the driver's window. In the driver's door trim
panel.
Electronic transmission
selector LIN Sends selector position to the TCM. In the floor console. TCM LIN Receives selector position information to control the Inside the transmission and


Information control
module

Media Oriented
System Transport
(MOST) transmission.

Contains controls for the entertainment system and
gateway between audio system and other vehicle
systems. accessible by removal of the
fluid pan.
In the instrument panel
below the integrated control
panel.
Integrated control
panel MOST Contains controls for the entertainment system. In the instrument panel.
Digital Audio Broadcast MOST Receives digital radio broadcasts. In the LH side of the luggage (DAB) receiver (SDARS
NAS only)
Bluetooth® phone
module compartment, above the
keyless vehicle module.
MOST Controls operation of the Bluetooth® phone system. Below the LH front seat, adjacent to the portable
audio module.
Amplifier/tuner MOST Provides amplification for the entertainment systems In the LH side of the luggage and reception of radio RF broadcasts.
Navigation computer MOST Reads map data from a DVD (digital versatile disc)
to calculate and display visual route guidance
information via the TSD and audible guidance via the
amplifier to the driver. compartment.
In the LH side of the luggage compartment.
Touch Screen Display
(TSD) MOST Provides the driver interface to the entertainment,
navigation and driver personalization functions. In the center of the
instrument panel.
TV tuner MOST Controls the reception of television signals and
audio/visual inputs.
Portable Audio Module MOST Controls the auxiliary inputs for additional audio
inputs via the portable audio interface. In the LH side of the luggage compartment.
Below the LH front seat, adjacent to the Bluetooth®
phone module.
MOST diagnostic
connector MOST Allows for diagnostic fault detection of the MOST
ring. Below the air ducting in the
floor console.
Refer to Communications Network section for further details.
Refer to: Communications Network (418-00 Module Communications Network, Description and Operation).

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

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.

Note: Heated and cooled front seat shown 1 Squab liner 2 Squab climate module 3 Squab inlet duct 4 Squab blower 5 Cushion climate module 6 Cushion inlet duct 7 Cushion blower 8 Cushion liner 9 Front seat climate control module COMPONENT LOCATION - TEMPERATURE - CLIMATE SEATS - SHEET 2 OF 2

Seating - Seats - Overview
Description and Operation

OVERVIEW

Leather Seat Covers Published: 20-Nov-2013

Leather is a natural product, therefore it bears natural characteristics, such as grain variations, growth & bush marks. These
non-weakening marks show the true nature of the hide and are the hallmarks of Leather. In order to maintain the beauty of the
vehicles natural Leather upholstery it requires regular cleaning, which if neglected, may cause deterioration. Where dust and
dirt are allowed to accumulate and become ingrained in the surface of the Leather, the upholstery may become permanently
damaged.

Light coloured upholstery can be particularly susceptible to soiling and staining and care should be taken to ensure that where
there is evidence of any soiling or staining on the upholstery then this should be cleaned immediately using the Jaguar/Land
Rover approved products, failure to do this could lead to the stain becoming permanent, this applies to all leather upholstery
and is not colour specific.

Leather trimmed seats will naturally exhibit areas of creasing and wrinkling over a period of time and is a normal characteristic
as the Leather ages.

Particular care should be taken where there is evidence of soiling or staining on the leather, this should be cleaned
immediately. Failure to do this could lead to the stain becoming permanent.
Particular care should be taken to prevent damage from studs, zips and buckles.
NOTES:

Please refer to Leather care label attached to seats for more information.


Creasing and wrinkling does not represent a manufacturing defect.


Damage from studs, zips and buckles do not represent manufacturing defects.


Use only Jaguar/Land Rover approved products in accordance with the instructions for use.

General

A number of front seating options are available. An 8-way electrically adjustable driver's seat is complemented by an 8-way
electrically adjustable passenger seat. A 10-way electrically adjustable driver's seat is complemented by an 10-way electrically
adjustable front passenger seat. A 16-way electrically adjustable driver's seat is complemented by a 12-way electrically
adjustable front passenger seat.

On non-memory seats, the operation of the seats is controlled directly from the driver's seat switchpack. On memory seats,
the operation of the seat motors is controlled by a seat control module which is located on the underside of the driver's seat
frame.

The driver's seat is fitted with a seat position sensor which is located on the seat rail. The sensor is used by the RCM
(restraints control module) to determine the seat position and adjust the inflation time of the airbag deployment accordingly.
Refer to: Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Description and Operation).

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