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

SystemPriority
InhibitedPower Reduction
Windshield washer jet and exterior mirror heaters-7
Windshield washer jet and exterior mirror heaters8-
Windshield heater-9
Primary climate control blower-10
Auxiliary climate control blower11-
Rear window heater12-
Windshield heater13-
Hot Start Electrical Load Management
SystemPriority
InhibitedPower Reduction
Front seat heaters; windshield washer jet and exterior mirror
heaters
1-
Windshield heater-2
Rear window heater-3
Air suspension-4
Entertainment system-5...

SystemPriority
Inhibited OperationPower Reduction
Auxiliary climate control blower-4
Air suspension-5
Entertainment system-6
Auxiliary climate control blower7-
Engine idle speed changes, and electrical load changes
of systems not under direct control of the ATCM (air
suspension and entertainment), are initiated using the
appropriate medium speed CAN bus message. When
partial operation is requested:
•The air suspension system still performs height
changes but reduces air compressor operation by not...

When the economy mode is selected, the automatic
temperature control function still operates, but with no
cooling capability the minimum discharge temperature
achievable will be ambient air temperature plus any heat
pick up in the air intake path.
Air Distribution Control
When the A/C is in the automatic mode, the ATCM
automatically controls air distribution according to a
comfort strategy. Automatic control is overridden when
one of the manual modes is selected. Air distribution
remains manually...

Provided the intake air has not been manually selected
to recirculation, the ATCM adjusts the recirculation
door to reduce the ram effect produced by the forward
motion of the vehicle.
When the ignition switch is turned off, the ATCM
evaluates the ambient air temperature. If the ambient
air temperature is less than a pre-determined value, the
intake air source is set to recirculation, to prevent the
ingress of damp air while the vehicle is parked.
When the vehicle is in the transportation mode, the
ATCM...

To protect the heater elements, the ATCM disables front
seat heating if battery voltage exceeds 16.5 ± 0.3 volts
for more than 5 seconds. Front seat heating is re-enabled
when battery voltage decreases to 16.2 ± 0.3 volts.
The ATCM monitors the power feeds to the heater
elements and disables the applicable front seat heating
if a short or open circuit is detected. The ATCM also
disables seat heating if the seat temperature rises
significantly above the target temperature setting.
The plausibility of the...

heater relay is energized, a battery power feed is
connected to each of the two windshield heater elements.
Windshield heater operation is only enabled when the
engine is running.
The ATCM operates the windshield heater in heating
cycles of varying power and time. The heating cycle
used depends on the ambient air temperature and
whether it is the initial or subsequent operation during
the current ignition cycle.
When the windshield heater switch is pressed, the
ATCM illuminates an LED in the switch and...

MANUAL SYSTEM CONTROL DIAGRAM
NOTE: A = Hardwired connections; D = High speed CAN bus; N = Medium speed CAN bus; O = LIN bus
Face and feet distribution door motor1
Recirculation door motor2
Windshield distribution door motor3
Temperature blend motor4
A/C compressor solenoid valve5
Refrigerant pressure sensor6
Ambient air temperature sensor7
Evaporator temperature sensor8
ATCM9
ECM10
(G421238) Technical Training58
Lesson 2 – ElectricalControl Components 

Engine Coolant Temperature (ECT) sensor11
Instrument cluster12
Blower control module13
Blower relay14
Fuse 51P, CJB (permanent battery power feed)15
Fusible link 12E, BJB16
Blower17
Control ComponentsLesson 2 – Electrical
59Technical Training (G421238) 

AUTOMATIC SYSTEM CONTROL DIAGRAM
NOTE: A = Hardwired connections; D = High speed CAN bus; N = Medium speed CAN bus; O = LIN bus
(G421238) Technical Training60
Lesson 2 – ElectricalControl Components 

Face and feet distribution motor1
LH temperature blend motor2
Recirculation motor3
Windshield distribution motor4
RH temperature blend motor5
A/C compressor solenoid valve6
Sunlight sensor7
Pollution sensor8
Refrigerant pressure sensor9
In-vehicle temperature sensor (automatic system,
all except Japan) or in-vehicle temperature and
humidity sensor (automatic system, Japan only)
10
Ambient air temperature sensor11
Evaporator temperature sensor12
ATCM13
ECM14
Engine Coolant Temperature (ECT) sensor15...