Land Rover Freelander 2004my Electrical Library Rover Manual

							DESCRIPTION AND OPERATION
4.122FREELANDER 04MY
INTERIOR LAMPS
DESCRIPTION
3 Door
The interior lamp is mounted in the centre of the headlining, and is controlled by the Central 
Control Unit (CCU) via a three position switch. With the switch in the centre position, the 
lamp will illuminate as soon as either door is opened. The interior lamp will fade out when 
any of the following occur:
zApproximately 15 seconds after the last door is closed.
zWhen the ignition switch is turned to the ignition position.
zWhen the vehicle is locked using either the remote handset or the key.
zAfter approximately 10 minutes if a door is left open.
With the switch in the forward ON position, the lamp will remain illuminated irrespective of 
door status. With the switch in the rear OFF position, the lamp will remain extinguished 
irrespective of door status.
Additional interior illumination is provided by a glove box lamp, and a load space lamp. The 
load space lamp will illuminate when the tail door is opened.
5 Door
The front and rear interior lamps are mounted in the headlining, and are controlled by the 
Central Control Unit (CCU). Both interior lamps will illuminate when any door is opened. The 
lamps will fade out when any of the following occur:
zApproximately 15 seconds after the last door is closed.
zWhen the ignition switch is turned to the ignition position.
zWhen the vehicle is locked using either the remote handset or the key.
zAfter approximately 10 minutes if a door is left open.
The front interior lamp can also be switched on and off manually by pressing the central 
switch mounted on the lamp unit. Also incorporated into the front interior lamp unit are two 
map reading lamps. These can be switched on and off by pressing the appropriate switch 
on either side of the lamp unit. The rear interior lamp can also be switched on and off 
manually, by pressing the switch mounted on the rear lamp assembly.
Additional interior illumination is provided by a glove box lamp, and a load space lamp. The 
load space lamp will illuminate when the tail door is opened. 
						

							DESCRIPTION AND OPERATION
FREELANDER 04MY 4.123
OPERATION
General
Feed from the positive battery terminal (C0192) is supplied to fusible link 3, fusible link 4 and 
fusible link 12 of the engine compartment fuse box (C0632) on an R wire. Fusible link 12 
(C0575) provides a constant battery feed to the lighting switch (C0041) on an RN wire. 
Fusible link 4 (C0574) provides a constant battery feed to fuse 16 of the passenger 
compartment fuse box (C0587) on an NW wire.
Fusible link 3 (C0571) is connected to the ignition switch (C0028) by an N wire. When the 
ignition switch is turned to the ignition position, current flows across the switch (C0028) to 
fuse 18 of the passenger compartment fuse box (C0588) on a G wire. Fuse 18 provides an 
ignition feed to the Central Control Unit (CCU) (C0593), which is mounted directly to the rear 
of the passenger compartment fuse box.
Central Control Unit (CCU)
The CCU monitors the condition of the door switches as follows:
zThe driver door switch (C0441) on a PS then PW wire.
zThe front passenger door switch (C0441) on a PW wire.
zThe LH rear passenger door switch (C0442) on a PW wire (5 door vehicles only).
zThe RH rear passenger door switch (C0442) on a PW wire (5 door vehicles only).
NOTE: Both front door switches and both rear door switches have the same connector 
numbers as they utilise the same harnesss.
All the above are normally open switches. If a door is opened, the switch contacts close and 
an earth path is created. When the CCU senses an earth path, it illuminates the interior 
lamp(s). All the above are earthed on B wires.
The CCU (C0428) also monitors the condition of the tail door switch (C0616) on a BO wire. 
When the tail door is opened, an earth path is created. The CCU will now illuminate the load 
space lamp (see Load Space Lamp).
For more information on CCU operation, refer to the  Control Units  section of the System 
Description and Operation Workshop manual. 
						

							DESCRIPTION AND OPERATION
4.124FREELANDER 04MY
Illumination Relay
Vehicles fitted with an instrument dimmer switch are also fitted with an illumination relay. 
Fuse 16 of the passenger compartment fuse box (C0589) provides a constant battery feed 
to the illumination relay (C1976) on a pair of P wires. The earth path for the relay coil (C1976) 
is controlled by the CCU (C0592) on a BR wire.
The CCU (C0593) provides an earth path for the relay coil when it receives a key in signal 
from the transponder coil (C0049) on a PW wire. The energised illumination relay (C1976) 
provides a feed to the automatic transmission selector (C0244) on an NR wire.
NOTE: If an instrument dimmer is not fitted, the feed to the automatic transmission selector 
(C0244) is provided by fuse 4 of the engine compartment fuse box via header 285.
For more information on instrument dimmer operation, refer to the  Interior Illumination  
section of this manual.
 
+  INTERIOR ILLUMINATION. 
Interior Lamp(s)
3 Door
Fuse 16 of the passenger compartment fuse box (C0580) provides a constant battery feed 
to the interior lamp (C0357) on a P wire. When the interior lamp switch is in the normal 
(central) position, the earth path for the lamp (C0357) is controlled by the CCU (C0593) via 
the passenger compartment fuse box (C0580) on a PW wire. The CCU will illuminate the 
interior lamp if it senses any of the doors are open (see Central Control Unit – CCU).
When the switch is moved to the ON position, current flows across the bulb to earth via the 
lamp fixings. This results in the lamp being illuminated irrespective of the condition of the 
door switches.
When the switch is moved to the OFF position, the circuit is broken. This results in the lamp 
being extinguished irrespective of the condition of the door switches.
5 Door
Fuse 16 of the passenger compartment fuse box (C0580) provides a constant battery feed 
to the front interior lamp (C0355) on a P wire. When the interior lamp switch is in the normal 
position, the earth path for the lamp (C0355) is controlled by the CCU (C0593) via the 
passenger compartment fuse box (C0582) on a PW wire. The CCU will illuminate the interior 
lamp if it senses any of the doors are open (see Central Control Unit – CCU).
When the switch is pressed, current flows across the bulb (C0355) to earth on a B wire. This 
results in the lamp being illuminated irrespective of the condition of the door switches. 
						

							DESCRIPTION AND OPERATION
FREELANDER 04MY 4.125
Fuse 16 (C0580) also provides a constant battery feed to the rear interior lamp (C0356) on 
a P wire. When the interior lamp switch is in the normal position, the earth path for the lamp 
(C0356) is controlled by the CCU (C0593) via the passenger compartment fuse box (C0582) 
on a PW wire. The CCU will illuminate the interior lamp if it senses any of the doors are open 
(see Central Control Unit – CCU).
When the switch is pressed, current flows across the bulb (C0356) to earth on a B wire. This 
results in the lamp being illuminated irrespective of the condition of the door switches.
Map Reading Lamps (5 Door Vehicles Only)
Fuse 16 of the passenger compartment fuse box (C0580) provides a constant battery feed 
to both the LH and RH map reading lamp switches (C0355) on a P wire. When either of the 
switches are pressed, current is able to flow across the switch to the map reading lamp bulb. 
Both bulbs are earthed via the lamp fixings.
Load Space Lamp
Fuse 16 of the passenger compartment fuse box (C0583) provides a constant battery feed 
to the load space lamp (C0119) on a P wire. The earth path for the load space lamp (C0120) 
is controlled by the CCU (C0593) via the passenger compartment fuse box (C0582) on a 
PW wire. The CCU will illuminate the interior lamp if it senses the tail door is open (see 
Central Control Unit – CCU).
Glove Box Lamp
Fusible link 12 of the engine compartment fuse box (C0575) provides a constant battery feed 
to the lighting switch (C0041) on an RN wire. When the lighting switch is turned to the side 
or headlamp position, current flows across the switch to fuse 17 of the passenger 
compartment fuse box (C0587) on an R wire. Fuse 17 (C0589) provides a feed to the glove 
box lamp (C0227) on an RO wire.
The earth path for the glove box lamp (C0235) is controlled by the glove box switch (C0238) 
on a BR wire. When the glove box is opened, the switch closes and an earth path is created 
via the passenger compartment fuse box (C0587) on a B wire.
Vanity Mirrors
Fuse 16 of the passenger compartment fuse box (C0580) provides a constant battery feed 
to the LH (C0760 on 3 door vehicles, C0737 on 5 door vehicles) and RH (C0736) vanity 
mirror lamps on P wires. The lamps are earthed on B wires. 
						

							DESCRIPTION AND OPERATION
4.126FREELANDER 04MY
INTERIOR ILLUMINATION
DESCRIPTION
General
Interior illumination provides background lighting for the instrument pack and control switch 
graphics. Interior illumination operates when the lighting switch is turned to the side or 
headlamp position, irrespective of ignition switch position.
OPERATION
General
Feed from the positive battery terminal (C0192) is supplied to fusible link 12 and fusible link 
4 of the engine compartment fuse box (C0632) on an R wire. Fusible link 4 (C0574) is 
connected to the timer relay (C0587) by an NW wire. The timer relay is located in the 
passenger compartment fuse box, and is controlled by the Central Control Unit (CCU) 
(C0592).
When energised, the timer relay provides a feed to fuse 29 of the passenger compartment 
fuse box. Fuse 29 (C0580) is connected to the window lift switch pack (C0343) by an RB 
wire. The switch pack (C0081) is earthed on a B wire.
Fusible link 12 (C0575) is connected to the lighting switch (C0041) by an RN wire. When the 
lighting switch is turned to the side or headlamp position, current flows across the switch 
(C0041) to fuse 17 of the passenger compartment fuse box (C0587) on an R wire. 
						

							DESCRIPTION AND OPERATION
FREELANDER 04MY 4.127
Fuse 17 (C0580) provides a feed to the following on RO wires:
zThe cruise control master switch (C0749).
zThe hazard warning switch (C0096).
zThe Heated Rear Window (HRW) switch (C0072).
zThe front LH window switch (C0321).
zThe front RH window switch (C0242).
zThe Hill Descent Control (HDC) switch (C0878).
zThe tail door window switch (C0354).
zThe Central Door Locking (CDL) switch (C0328).
zThe LH seat switch (C0249).
zThe RH seat switch (C0250).
zThe LH rear window switch (C0732) (5 door vehicles only).
zThe RH rear window switch (C0732) (5 door vehicles only).
zThe sunroof switch (C0363).
zThe cigar lighter (C0074).
zThe audio head unit (C0098).
zThe satellite navigation head unit (C0921).
zThe heater controls (C0051).
zThe air conditioning (a/c) switch pack (C0275).
zThe fresh/recirculated air switch (C0750).
zThe Heated Front Screen (HFS) switch (C0131).
zThe passenger door window switch (C0087).
zThe PDC switch (C0404).
All the above are earthed on B wires.
Fuse 17 (C0589) also provides a feed to the following on RO wires:
zThe instrument pack (C0233).
zThe rear fog lamp switch (C0064).
zThe front fog lamp switch (C0065).
zThe clock (C0232).
zThe rear screen washer switch (C0073).
zThe rear screen wiper switch (C0079).
All the above are earthed on B wires.
Instrument Dimmer (Canadian Vehicles Only)
The instrument dimmer is a rotary potentiometer mounted on the fascia below the 
instrument pack. When the lighting switch is turned to the side or headlamp position, current 
flows across the switch (C0041) to fuse C (C1875) on an RW wire. Fuse C (C1875) is 
connected to the instrument dimmer (C0201) by an RB wire. The dimmer (C0201) provides 
a feed to all the switches and controls mentioned previously on RO wires.
The switch (C0201) also contains a tell-tale LED, which is earthed on a B wire. 
						

							DESCRIPTION AND OPERATION
4.128FREELANDER 04MY
INSTRUMENTS
DESCRIPTION
General
The instrument pack is a totally electronic controlled device receiving electrical signals from 
sender units, and CAN messages from the Engine Control Module (ECM), the ABS ECU, 
the Electronic Automatic Transmission Electronic Control Unit (EAT ECU) and the cruise 
control interface unit (Td4 vehicles only). The instrument pack transposes these via a 
microprocessor into analogue gauge read out and warning lamp illumination.
The warning lamps illuminate in one of four colours, which indicate the level of importance 
of the warning as follows:
zRed = Warning.
zYellow = Caution.
zGreen = System operative.
zBlue = Headlamp main beam operative.
For a detailed description of the instrument pack, refer to the  Instruments  section of the 
System Description and Operation Workshop manual.
OPERATION
General
Feed from the positive battery terminal (C0192) is supplied to the following (C0632) on an 
R wire: 
zFuse 7
zFusible link 12
zFusible link 9
zFusible link 4
zFusible link 3
Fuse 7 (C0576) provides a constant battery feed to the hazard warning relay located in the 
passenger compartment fuse box (C0580) on an NO wire.
Fusible link 12 (C0575) provides a constant battery feed to the lighting switch (C0041) on an 
RN wire.
Fusible link 9 (C0570) is connected to the main/dipped beam relay located in the passenger 
compartment fuse box (C0587) by an N wire. 
Fusible link 4 (C0574) is connected to fuse 16 of the passenger compartment fuse box 
(C0587) by an NW wire. Fuse 16 (C0589) provides a constant battery feed to the instrument 
pack (C0230) on a P wire. 
						

							DESCRIPTION AND OPERATION
FREELANDER 04MY 4.129
Fusible link 3 (C0571) is connected to the ignition switch (C0028) by an N wire. When the 
ignition switch is turned to the ignition position, current flows across the switch (C0028) to 
fuse 18 of the passenger compartment fuse box (C0588) on a G wire. Fuse 18 (C0589) 
provides an ignition feed to the instrument pack (C0233) on a G wire.
The warning lamps contained within the instrument operate as follows:
zThe LH direction indicator warning lamp (C0233) receives a feed from the hazard 
warning lamp relay (C0589) on a GR wire. The lamp is earthed on a B wire.
zThe RH direction indicator warning lamp (C0233) receives a feed from the hazard 
warning lamp relay (C0589) on a GW wire. The lamp is earthed on a B wire.
zThe main beam warning lamp (C0233) receives a feed from the main/dipped beam 
relay via fuse 14 of the passenger compartment fuse box (C0589) on a UG wire. The 
lamp is earthed on a B wire.
zThe glow plug warning lamp receives a constant battery feed from fuse 16 of the 
passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is 
controlled by the Engine Control Module (ECM) (C0331) via the CAN-BUS on YN 
(Low) and YB (High) wires. This signal is delivered to the instrument pack via the ABS 
ECU (C0501).
zThe seat belt warning lamp receives an ignition feed from fuse 18 of the passenger 
compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by 
the Central Control Unit (CCU) (C0593) via the passenger compartment fuse box 
(C0589) on an RP wire.
NOTE: The seat belt warning lamp is not operational in all markets.
zThe SRS warning lamp receives an ignition feed from fuse 18 of the passenger 
compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by 
the airbag DCU (C0256) on a YR wire.
zThe ABS warning lamp receives a constant battery feed from fuse 16 of the passenger 
compartment fuse box (C0589) on a P wire. Illumination of the lamp is controlled by the 
ABS ECU (C0501) via the CAN-BUS on YN (Low) and YB (High) wires.
zThe door open warning lamp receives an ignition feed from fuse 18 of the passenger 
compartment fuse box (C0589) on a G wire. Illumination of the lamp is controlled by 
the CCU (C0593) via the passenger compartment fuse box (C0589) on a PB wire.
zThe Hill Descent Control (HDC) warning lamp receives a constant battery feed from 
fuse 16 of the passenger compartment fuse box (C0589) on a P wire. Illumination of 
the lamp is controlled by the ABS ECU (C0501) via the CAN-BUS on YN (Low) and YB 
(High) wires.
zThe Hill Descent Control (HDC) information lamp receives a constant battery feed from 
fuse 16 of the passenger compartment fuse box (C0589) on a P wire. Illumination of 
the lamp is controlled by the ABS ECU (C0501) via the CAN-BUS on YN (Low) and YB 
(High) wires. 
						

							DESCRIPTION AND OPERATION
4.130FREELANDER 04MY
zThe handbrake/low brake fluid warning lamp receives a constant battery feed from fuse 
16 of the passenger compartment fuse box (C0589) on a P wire. Illumination of the 
lamp is controlled by the handbrake switch (C0091) on a BW wire. When the 
handbrake is applied, the switch contacts close and an earth path is created, 
illuminating the lamp. Illumination of the lamp is also controlled by the ABS ECU 
(C0501) via the CAN BUS on YN (Low) and YB (High) wires. If the warning lamp is 
illuminated while the handbrake is released, urgent attention is required to the braking 
system.
zThe low oil pressure warning lamp receives an ignition feed from fuse 18 of the 
passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is 
controlled by the oil pressure switch (C0187) on a WN wire (WN then NG on Td4 
vehicles).
zThe ignition/no charge warning lamp receives an ignition feed from fuse 18 of the 
passenger compartment fuse box (C0589) on a G wire. Illumination of the lamp is 
controlled by the ECM (C0331) on Td4 vehicles, and the alternator (C0053) on K1.8 
and KV6 vehicles.
zThe anti-theft alarm LED receives a constant battery feed from fuse 16 of the 
passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is 
controlled by the CCU (C0592) via the passenger compartment fuse box (C0589) on a 
UK wire.
zThe overspeed warning lamp receives a constant battery feed from fuse 16 of the 
passenger compartment fuse box (C0589) on a P wire. Illumination of the lamp is 
controlled by the ABS ECU (C0501) via the CAN-BUS on YN (Low) and YB (High) 
wires.
NOTE: The overspeed warning lamp is not operational in all markets.
zThe cruise control warning lamp receives a constant battery feed from fuse 16 of the 
passenger compartment fuse box (C0589) on a P wire. On KV6 vehicles, illumination 
of the warning lamp is controlled by the cruise control ECU (C0239) on a WU wire. On 
Td4 vehicles, illumination of the warning lamp is controlled by the cruise control 
interface unit (C1959) via the CAN-BUS on YN (Low) and YB (High) wires.
NOTE: The list of CAN-BUS connections is by no means exhaustive. For more details, refer 
to the Communication Databuses and Instruments sections of the System Description and 
Operation Workshop manual.
Speedometer
The speedometer is driven by a CAN message from the Engine Control Module (ECM) on 
YN (Low) and YB (High) wires. For more information on speedometer operation, refer to the  
Instruments  section of the System Description and Operation Workshop manual. 
						

							DESCRIPTION AND OPERATION
FREELANDER 04MY 4.131
Tachometer
The tachometer is driven by a CAN message from the Engine Control Module (ECM) on YN 
(Low) and YB (High) wires. For more information on tachometer operation, refer to the  
Instruments  section of the System Description and Operation Workshop manual.
Engine Coolant Temperature Gauge
The Engine Coolant Temperature (ECT) gauge is driven by a CAN message from the 
Engine Control Module (ECM) on YN (Low) and YB (High) wires. For more information on 
ECT gauge operation, refer to the  Instruments  section of the System Description and 
Operation Workshop manual.
Fuel Gauge
The instrument pack (C0230) provides a feed to the fuel tank sender (C0114) on a GB wire. 
The sender is located within the fuel tank and is earthed on a B wire. The sender is a float 
operated rotary potentiometer, which provides a variable resistance to earth for the output 
from the instrument pack.
For more information on fuel gauge operation, refer to the  Instruments  section of the 
System Description and Operation Workshop manual.