Land Rover Body And Paint Air Bag And Safety Belt Rover Manual

Diagnostic socket3
Integrated Head Unit (IHU) or Head unit4
Heating and ventilation control module5
Fuel burning heater6
Seat occupancy sensor (NAS only)7
Restraints control module8
Terrain Response™9
Electronic rear differential control module10
Electric park brake control module11
Air suspension control module12
Communications NetworkLesson 2 – Electrical
197Technical Training (G421292) 

Communication Network (CAN bus) Sheet 3 of 3
NOTE: D= HS CAN Bus N= MS CAN Bus O= LIN Bus
Engine Control Module1Tyre pressure monitoring control module2
(G421292) Technical Training198
Lesson 2 – ElectricalCommunications Network 

Park Distance Control (PDC) module3
Central Junction Box (CJB)4
Rain senor5
Memory control module6
Sunroof control module7
Battery backed up sounder (BBuS)8
ABS control module9
Automatic Front Lighting System (AFS)10
Transfer box control module11
Transmission control module12
A number of different types of data bus are incorporated
into the vehicle wiring harnesses for the transmission
of commands and information between ECU’s. The bus
configuration installed on a particular vehicle depends
on the model...

•Steering angle sensor
•Air suspension
•Electric park brake
•Electronic rear differential control module
•Terrain Response™
•Restraint control module
•Engine control module
•Transmission control module
•Adaptive front lighting system control module
•Antilock Braking System (ABS) control module
Both the medium and high speed CAN bus are
connected to the Instrument cluster and the diagnostic
socket at one end. The Medium speed bus terminates at
the Central Junction Box (CJB), while the high speed
bus...

CJB also acts as a bi-directional gateway between the
MS-CAN bus and the LIN bus by passing signals
between the two buses.
The bus is a single wire and operates at 9.6Kbs. The
protocol used on the LIN bus is defined by the LIN
consortium.
Diagnostic Socket
The diagnostic socket allows the transfer of information
between the vehicle Electronic Control Modules and
T4 on the high or medium speed CAN bus, or indirectly
via the instrument pack. The diagnostic socket is located
in the lower instrument panel...

COMPONENT LOCATIONS
Pollution sensor (Japan only)1
Sunlight sensor2
ATCM3
Evaporator temperature sensor4
Control ComponentsLesson 2 – Electrical
37Technical Training (G421238) 

In-vehicle temperature sensor; In-vehicle
temperature and humidity sensor (Japan only)
5Refrigerant pressure sensor6
Ambient air temperature sensor7
GENERAL
The control system operates the Air Conditioning (A/C)
system and the heating and ventilation system to control
the temperature, volume and distribution of air from the
heater.
Either a manual or an automatic control system is
installed in the vehicle. The manual system maintains
a constant heater outlet temperature, to both sides of the
passenger...

Manual System Control Panel
Temperature switch1
LH front seat heater switch2
Distribution switch3
RH front seat heater switch4
Blower switch5
Rear window heater switch (models with heated
windshield)
6
Rear window heater switch (models without
heated windshield)
7
Windshield heater switch (where fitted)8
Economy switch9
Recirculation switch10
The switches on the manual ATCM control panel have
the following functions:
•Temperature Switch: Adjusts the heater
temperature output. The switch can rotate...

de-energizes the heater elements and extinguishes
the second LED. The seat heaters remain on until
selected off or the ignition is switched off.
•Distribution Control Switch: For manual
adjustment of air distribution. The switch can rotate
through 360°. 12 primary detents define the
distribution settings of: Face only; 3 face/feet; feet
only; 3 feet/screen; screen only; 3 screen/face. Minor
detents define small steps between the primary
detents. Amber LEDs in the switch surround
illuminate to indicate...

Automatic System Control Panel
LH temperature switch1
LH front seat heater switch2
Blower switch3
Automatic mode switch4
RH front seat heater switch5
RH temperature switch6
Programmed defrost switch7
Windshield heater switch8
Rear window heater switch9
Auxiliary climate control switch10
System off switch11
Economy switch12
Recirculation switch (models without pollution
sensing)
13
Recirculation switch (models with pollution
sensing)
14
Distribution switch - feet15
Distribution switch - face16...