Land Rover Freelander 2004my Electrical Library Rover Manual

DESCRIPTION AND OPERATION
4.72FREELANDER 04MY
SUPPLEMENTARY RESTRAINT SYSTEM (SRS)
DESCRIPTION
General
The Supplementary Restraint System (SRS) is designed to work in conjunction with the 
vehicle seat belts. The main components of the system are:
zDriver Airbag – Mounted in the steering wheel to provide added protection for the driver 
during a frontal impact.
zPassenger airbag – Mounted in the fascia to provide added protection for the front seat 
passenger during a frontal impact.
zSeat Belt...

DESCRIPTION AND OPERATION
FREELANDER 04MY 4.73
Passenger Airbag
The airbag DCU (C0256) controls the feed to the passenger airbag (C0433) on a W wire. 
The earth path for the passenger airbag (C0433) is controlled by the airbag DCU (C0256) 
on a U wire.
Seat Belt Pre-tensioners
RH
The airbag DCU (C0256) controls the feed to the RH pre-tensioner (C0254) on an N wire. 
The earth path for the RH pre-tensioner (C0254) is controlled by the airbag DCU (C0256) 
on an NR wire.
LH
The airbag DCU (C0256) controls...

DESCRIPTION AND OPERATION
4.74FREELANDER 04MY
AIR CONDITIONING (A/C) – Td4
DESCRIPTION
General
The air conditioning (A/C) system will only operate when the engine is running. The A/C 
system is switched on and off by pressing the switch mounted on the centre console. When 
the switch is pressed, an LED mounted within the switch illuminates to inform the driver the 
system is operational. For more information on LED operation, refer to the  Interior 
Illumination  section of this manual.
 
+  INTERIOR...

DESCRIPTION AND OPERATION
FREELANDER 04MY 4.75
Fusible link 2 (C0571) is connected to the ignition switch (C0028) by an NR wire. When the 
ignition switch is turned to the ignition position, current flows across the switch (C0028) to 
fuse 4 of the passenger compartment fuse box (C0588) on an SU wire. Fuse 4 (C0585) 
provides an ignition feed to the following on G then LGS wires:
zThe blower motor switch (C0058).
zThe fresh/recirculated air switch (C0750).
zThe fresh/recirculated air motor (C0006).
A/C...

DESCRIPTION AND OPERATION
4.76FREELANDER 04MY
Instrument Pack
The instrument pack (C0230) acts as a gateway, relaying CAN messages to and from 
different components throughout the vehicle as follows:
Pressure Sensor
The pressure sensor is located in the high pressure A/C line adjacent the compressor, and 
replaces the more traditional trinary pressure switch. The instrument pack (C0230) provides 
a 5 V reference voltage to the pressure sensor (C1257) on a UO wire. The pressure sensor 
(C1257) is provided...

DESCRIPTION AND OPERATION
FREELANDER 04MY 4.77
The cooling fan control unit interprets the PWM signal provided by the ECM as follows:
zIf a PWM signal of between approximately 12 % and 87 % is received by the cooling 
fan control unit, it will not power the cooling fans.
zIf a PWM signal of 87 % or over is received by the cooling fan control unit, it will provide 
a feed to the cooling fan (C0005) and condenser fan motors (C0280) on SU wires. An 
earth path is provided for the cooling fan (C0005) and...

DESCRIPTION AND OPERATION
4.78FREELANDER 04MY
AIR CONDITIONING (A/C) – K SERIES AND KV6
DESCRIPTION
General
The air conditioning (A/C) system will only operate when the engine is running. The A/C 
system is switched on and off by pressing the switch mounted on the centre console. When 
the switch is pressed, an LED mounted within the switch illuminates to inform the driver the 
system is operational. For more information on LED operation, refer to the  Interior 
Illumination  section of this manual.
 
+...

DESCRIPTION AND OPERATION
FREELANDER 04MY 4.79
Fusible link 2 (C0571) is connected to the ignition switch (C0028) by an NR wire. When the 
ignition switch is turned to the ignition position, current flows across the switch to fuse 4 of 
the passenger compartment fuse box (C0588) on an SU wire. Fuse 4 (C0585) provides an 
ignition feed to following on G then LGS wires:
zThe blower motor switch (C0058).
zThe fresh/recirculated air switch (C0750).
zThe fresh/recirculated air motor (C0006).
A/C Master...

DESCRIPTION AND OPERATION
4.80FREELANDER 04MY
Pressure Sensor
The pressure sensor is located in the high pressure A/C line adjacent the compressor, and 
replaces the more traditional trinary pressure switch. The ECM (C0913 on K Series vehicles, 
C0371 on KV6 vehicles) provides a 5 V reference voltage to the pressure sensor (C1257) 
on a UO wire. The pressure sensor (C1257) is provided an earth path by the ECM (C0913 
on K Series vehicles, C0371 on KV6 vehicles) on a PB wire.
The pressure sensor (C1257)...

DESCRIPTION AND OPERATION
FREELANDER 04MY 4.81
The cooling fan control interprets the PWM signal provided by the ECM as follows:
zIf a PWM signal of between approximately 12 % and 87 % is received by the cooling 
fan control unit , it will not power the cooling fans.
zIf a PWM signal of 87 % or over is received by the cooling fan control unit, it will provide 
a feed to the cooling fan (C0005) and condenser fan motors (C0280) on SU wires. An 
earth path is provided for the cooling fan (C0005) and...