Land Rover Range Rover Etm 1995 4th Edition Rover Manual

							HEATED FRONT SCREENF6
CIRCUIT OPERATION1
CIRCUIT OPERATION
This operates only with the engine running, which is
determined by the HEVAC panel. In the off state, the
signal is at 12 volts. When the Heated Front
Windscreen is activated, the signal is switched to 0
volts. This provides the ground required for relay 5 to
be pulled in, as there is an ignition feed on the other
side of the coil provided by relay 15. This relay
energises one half of the heated screen elements.
Once relay 5 has been energised, a 12 volt signal is
provided to the coil of relay 4. The other side of the
coil is connected directly to ground, thereby
energising the relay and switching on the other half
of the elements.
There is also a feed spliced from the harness which
provides the petrol Engine Control Module with a
signal that tells the unit there will be a large electrical
load turned on/off. 
						

							HEATED FRONT SCREENF6
2CIRCUIT DIAGRAM
30
F 32
30 AP125a
Engine Compart-
ment Fuse Box
[4] Right
Heated
Front
Screen
Relay
[5] Left Heated
Front
Screen
Relay RL 5
[5]
7
PG
Petrol Diesel
Z253
Heating Ventila-
tion and Air
Conditioning
Control Unit
(HEVAC)
5 C244
Z132
Engine Control
Module (ECM)
15
B
S114
E167
See Ground Dis-
tribution
21 C507
10
C202 C10210
C202 C102 S102
2
C106 C506PG
5 23 1
30
F 30
30 A
RL 4
[4]
5 23 1
2 C1724 C1733 C172
B108
Heated Front
Screen
1 C130PLG1 C128PLG
E199
0101 PROG 
						

							HEATED FRONT SCREENF6
3CIRCUIT DIAGRAM
3
C106
NY
C506
25
C121 C571
15 C114
Petrol DieselZ106
Generator
Z238
Body Electrical
Control Module
(BECM)
S573
9 C255
4 C246B
Z253
Heating Ventila-
tion and Air
Conditioning
Control Unit
(HEVAC)Starting and
Charging D +
NY
C246AWith Air Condi-
tioning Without Air
Conditioning
4
Z253
Heating Ventila-
tion and Air
Conditioning
Control Unit
(HEVAC) 
						

							HEATED REAR SCREENF9
CIRCUIT OPERATION1
CIRCUIT OPERATION
The rear screen heater will reflect the state of the
heated rear screen input from the HEVAC unit at any
time while the BeCM (Z238) is in the active mode.
This signal is normally 12V and 0V when active (Ac-
tive Low).
The HEVAC unit will control all timing functions re-
lated to the rear screen heater. 
						

							HEATED REAR SCREENF9
2CIRCUIT DIAGRAM
Z253
Heating Ventila-
tion and Air
Conditioning
Control Unit
(HEVAC)
01
B141
Rear Screen
2 C324
30
F 12
30 AZ238
Body Electrical
Control Module
(BECM)
RL 11
11 C255
1 C866
B
S851
E322
See Ground Dis-
tribution
2
C860 C310
1 C873PLG
WB
Without Air
Conditioning With Air Condi-
tioning
17 C246BZ253
Heating Ventila-
tion and Air
Conditioning
Control Unit
(HEVAC)
9 C246A
15
01 
						

							ELECTROCHROMIC REAR VIEW MIRRORG1
1CIRCUIT DIAGRAM
8
Z238
Body Electrical
Control Module
(BECM)
2 C564
918 C626
Automatic
Transmission Manual Trans-
mission
3C660
0 [1]
X157
Reverse Switch
S551
E529
E574
UP UG
S608
S609
S610
UB
10C65967 C660
C559
6 C562
0 [1]
X1
0 [2]
Y2
0 [3]
Z3
C562 GN
B
5C560BG
S607
E621
C560
C560 1 C564
Petrol
Diesel
See Ground Dis-
tributionSee Ground Dis-
tribution C660X294
Gear Box Position
Switch
[1] X Switch
[2] Y Switch
[3] Z Switch
P01 1
R00 1
N10 1
D10 0
3000
2010
1110
Z* 1 1 1
XY Z
GN
UB
2 C312
1 C312
S306
E328
See Ground Dis-
tribution
Manual Trans-
mission
Automatic
TransmissionB110
Electrochromic
Rear View Mirror
1 C323
3
20 C326
WP NU
15
F 6
10 A
Automatic Gear-
box
BB
1 =
0 =
* =Switch Open
Switch Closed
Fault 
						

							HEADLAMPSH1
CIRCUIT OPERATION1
CIRCUIT OPERATION
Dipped Beam Headlamps
Operation of the headlamp switch will activate the
LH and RH dipped beam headlamps, regardless of
the state of the ignition switch.
Headlamp Delay
The term ªheadlampº used throughout this section is
assumed to be either dipped beam or main beam, as
selected by the main beam changeover switch. This
switch will continue to function for the duration of the
delay period.
The headlamps will operate when the headlamp
switch is set to the headlamp position, regardless of
the status of the ignition switch.
If the ignition switch is turned off and the key re-
moved whilst the headlamps are on, and the head-
lamp switch is subsequently turned off with a dwell of
less than 1 second in the side lamp position, then a
25 second headlamp delay will be initiated.
If the ignition switch is turned off and the key re-
moved while the headlamps are on and the head-
lamp switch is subsequently turned to the side lamp
position for greater than 1 second then the head-
lamps will be switched off and parking lamps will re-
main on until the headlamp switch is turned off, or
turned back to the headlamp position.
The headlamp delay may be cancelled immediately
at any time while its active (master lighting switch in
the off position) by the following actions:

Insertion of the ignition key or selection of auxi-
liary /ignition (all exterior lamps will be extinguis-
hed).

Turning the headlamp switch to the side lamp
position. In this case the exterior lamps will im-
mediately revert to parking lamps mode.

Turning the headlamp switch to the headlamps
position. In this case the headlamps and normal
side lamps (i.e. not parking lamps) will be active.
Main Beam/Side lamp Warning lamps
The main beam warning lamp will be activated when-
ever the main beam lamps are on, regardless of the
state of the ignition switch. The side lamp warning
lamp will be active whenever the side lamp switch is
on and the side lamps are operating in side lamp
mode, but not when the key is removed and the
parking lamp mode is on.
Main Beam Headlamps
The main beam change over switch has a momen-
tary action, which will cause the headlamps to switch
between dipped and main beam on each operation.
Operation of the main beam changeover switch,
while the dipped beam headlamps are activated and
the front fog lamps are inactive, will cause the
dipped beam lamps to be extinguished and both
main beam 1 and main beam 2 lamps to be illumi-
nated.
Operation of the main beam changeover switch,
while both dipped beam and front fog lamps are ac-
tive, will cause the dipped beam lamps to be extin-
guished and the main beam 1 lamps to be illumi-
nated.
Daytime Running lamps
This feature is a requirement for vehicles for the Ca-
nadian, Norwegian, Swedish and Finnish markets.
On these vehicles, with the engine running, daytime
running loads will be active regardless of the state of
any switches.
This feature will in no way effect the operation of any
of the other lighting systems. 
						

							HEADLAMPSH1
2CIRCUIT DIAGRAM
Z238
Body Electrical
Control Module
(BECM)
S205
30
F 1
10 A
4 C242 14
Z142
Instrument
Cluster
[15] Control Unit
and Mess-
age Centre
Display
[15]
818
145
212
210
313
19
515
11
17 7
Z238
Body Electrical
Control Module
(BECM)
93
1
12 8
X273
Direction Indicator
[1] Headlamp
Flash
[2] Main Beam
C257
C219
X145
Main Lighting
Switch
[1] Side Lamps
[2] Headlamps
S208
4
E252
12 C236
00[1] [2]
0[2]
0[1]
S215
E252 E254
7 C258
C242
C256 3
2
3 C219
8 C236 Interior Lamps
B
B OR U UW USRW BB
BG BG RG RG OG OG LG LGP P
See Fuse Details
See Ground Dis-
tributionSee Ground Dis-
tribution 
						

							HEADLAMPSH1
3CIRCUIT DIAGRAM
See Ground Dis-
tribution
See Ground Dis-
tribution
Z238
Body Electrical
Control Module
(BECM)
US 10 8
UG
C120
12 C163
RB 511
UK
54
UB 15
UP
C113
12 C189
RW 93
UO
54
E181 3 C189
6
S111
[1] [2] [3] [4]
B116
Left Headlamp
[1] Side Lamp
[2] Dipped
Beam
[3] Main Beam
[4] Main Beam
2
E154 3 C163
6
S101
[1] [2] [3] [4] B130
Right Headlamp
[1] Side Lamp
[2] Dipped Beam
[3] Main Beam
[4] Main Beam 2Z238
Body Electrical
Control Module
(BECM)
13 C256
4 C238
X134
Ignition Switch
0III
III
S215
E252 3 C238
3 C255
2 C233
0 [1]
1 C233
X229
Key±In Switch
[1] Key Inserted
Except NAS
BB B BB
B NWWK
See Ground Dis-
tribution 
						

							SIDE LAMPSH4
CIRCUIT OPERATION1
CIRCUIT OPERATION
Side lamps:
Activation of the side lamp switch, when the ignition
key is in, when the ignition is on, or when the head
lamp switch is on, will result in the operation of the
following; front LH and RH side lamps, rear LH and
RH side lamps, number plate lamps, lamps on warn-
ing lamp and the rear door switch pack illumination.
The following lamps will also operate through the
activation of the side lamp switch:
Clock, fascia switch pack, console switch pack, gear
select assembly, instrument pack, front cigar lighter,
Hevac panel switches and I.C.E. (remote telephone
dial, when fitted).
Parking lamps:
With the ignition and auxiliary off, the key out and the
headlamp switch in the side lamp position, the park-
ing lamps will be activated according to the position
of the direction indicator switch as follows:

If the indicator switch is in the central position,
then all the side lamps will be on.

If the indicator switch is in the RH position, then
the front right and rear right side lamps will be
on.

If the indicator switch is in the LH position, then
the front left and rear left side lamps will be on.
If the headlamp switch is set to the headlamp posi-
tion, then normal side lamps will operate in conjunc-
tion with the headlamps.
Side lamp Warning lamps:
The side lamp warning lamp will be active whenever
the side lamp switch is on and the side lamps are
operating in side lamp mode, but not when the key is
removed and the parking lamp mode is on.