Land Rover Freelander 2002my Electrical Library 3rd Edition Rover Manual

DESCRIPTION AND OPERATION
4.80FREELANDER 02MY
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:

Driver Airbag – Mounted in the steering wheel to provide added protection for the driver 
during a frontal impact.

Passenger airbag – Mounted in the fascia to provide added protection for the front seat 
passenger during a frontal impact.

Seat Belt...

DESCRIPTION AND OPERATION
FREELANDER 02MY 4.81
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
4.82FREELANDER 02MY
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 02MY 4.83
OPERATION
General
Feed from the positive battery terminal (C0192) is supplied to fusible link 5, fusible link 1 and 
the main relay (C0632) on an R wire. All are located within the engine compartment fuse 
box. 
The earth path for the main relay coil (C0576) is controlled by the Engine Control Module 
(ECM) (C0603) on a WK wire. The energised main relay provides a feed to fuse 4, which is 
also located in the engine compartment fuse box. For more details on...

DESCRIPTION AND OPERATION
4.84FREELANDER 02MY
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 02MY 4.85
Cooling Fan ECU – 01MY
Fusible link 5 of the engine compartment fuse box (C0573) provides a constant battery feed 
to the cooling fan ECU (C0701) on an NW wire. Fuse 4 of the engine compartment fuse box 
(C0575) provides a feed to the cooling fan ECU (C0701) on an NK wire when the main relay 
is energised (see above). The cooling fan ECU (C0701) is earthed on a B wire.
To control cooling fan and condenser fan speed, the ECM (C0331) provides the cooling fan...

DESCRIPTION AND OPERATION
4.86FREELANDER 02MY
Cooling Fan Control Unit – 02MY
Fusible link 5 of the engine compartment fuse box (C0573) provides a constant battery feed 
to the cooling fan control unit (C0208) on an NG wire. Fuse 4 of the engine compartment 
fuse box (C0575) provides a feed to the cooling control unit (C1680) on an NK wire when 
the main relay is energised (see above). The cooling control unit (C0208) is earthed on a B 
wire.
To control cooling fan and condenser fan speed, the ECM...

DESCRIPTION AND OPERATION
FREELANDER 02MY 4.87
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
4.88FREELANDER 02MY
OPERATION
General
Feed from the positive battery terminal (C0192) is supplied to fusible link 1, fusible link 5, 
and the main relay (C0632) on an R wire. All are located within the engine compartment fuse 
box.
The earth path for the main relay coil (C0576 on K Series vehicles, C0578 on KV6 vehicles) 
is controlled by the Engine Control Module (ECM) (C0913 on K Series vehicles, C0371 on 
KV6 vehicles) on a WK wire. The energised main relay provides a feed to...

DESCRIPTION AND OPERATION
FREELANDER 02MY 4.89
Compressor
K1.8
When the ECM (C0913) receives an A/C request signal via the CAN BUS, it will energise 
the compressor clutch relay by providing an earth path for the relay coil (C0576) on a UB 
wire. A feed from fuse 9 of the engine compartment fuse box is now able to flow across the 
energised relay (C0578) to the compressor clutch (C0127) on an R wire.
KV6
When the ECM (C0371) receives an A/C request signal via the CAN BUS, it will energise 
the compressor...