Range Rover 2. Electrical Manual — part 187
NAVIGATION SYSTEM
E9
6
CIRCUIT DIAGRAM
REV: 09/2001
BS
BS
Z289
Navigation
Computer
5
G
3
S224
14
2
12
C1349
7
C0993
Z291
Display and
Control Unit
S226
BS
BK
G
BS
6
5
S223
15
4
S227
U
BS
7
R
1
S222
16
6
S225
R
BS
U
WASH/WIPE
F5
CIRCUIT OPERATION
1
CIRCUIT OPERATION
Front Wipers
The front wipers will only operate with auxiliary or
ignition on, except when auxiliary and ignition are
both turned off, the wipers will continue to operate
until they reach the park position. If the engine is
cranked while the wipers are on, then the wiper
operation will be suspended until cranking is
released.
Flick Wipe Operation
When the flick wipe switch is operated, the wiper will
operate in the slow wipe mode until the switch is
released.
Intermittent Operation
When the wiper control stalk is moved to the
intermittent position, the wipers will perform one wipe
of the screen at slow speed and then wait for N
seconds before doing another wipe etc. The value of
N is determined by the position of the wipe delay
potentiometer. When the potentiometer is in the far
left position the time delay is 2 seconds. Each
movement of the potentiometer to the right doubles
the time delay, up to a maximum of 32 seconds.
Slow Speed Operation
When the wiper control stalk is moved to the slow
position, the wipers will operate continuously at slow
speed.
Fast Speed Operation
When the wiper control stalk is moved to the fast
position, the wipers will start operating at fast speed
immediately and will continue to do so until fast
speed is switched off.
Front Screen Programmed Wash/Wipe
If the wash/wipe switch is operated, the front screen
wash motor will operate for 1.5 seconds or for the
duration the switch is held on, whichever is the
longer.
The slow front wipe will be operated for 0.5 seconds
after the switch is closed and will continue to operate
until three full wipes have been completed after the
wash motor has ceased it’s operation.
Rear Wiper
Intermittent Operation
When the rear wiper stalk is moved to the “on”
position, then the rear wiper will perform two
complete wipes and stop in the park position. After
that, its operation will vary depending on the
selected mode of the front wipers.
Reverse Gear Wiping
If reverse gear is selected while auxiliary or ignition
is on and a front wiper function is selected, then the
rear wiper will operate as well.
If reverse gear is selected while the front wipers are
off (or performing a wash/wipe cycle) then the rear
wiper will operate in the mode indicated by the rear
wiper switch.
Rear Screen Programmed Wash/Wipe
If the rear wash/wipe switch is operated, the rear
screen wash motor will operate for 1.5 seconds or
for as long as the switch is held on, whichever is the
longer. The rear wipe will be operated 0.5 seconds
after the switch closed and will continue to operate
until three full wipes have been completed after the
washer motor has ceased it’s operation.
Wiper Operation With Speed Dependency On
If the vehicle has speed dependent wipers, the wiper
adapts its speed to the vehicle speed.
The speed barrier, where the wipers move between
a faster or slower operation, is 2 mph.
Headlight Wash/Wipe
If the headlight switch is in the on position, the first
and every alternate operation of the front screen
wash switch will activate the headlight wash/wipe
motor, which will operate for 2 seconds, regardless
of the length of time the switch is pressed.
WASH/WIPE
F5
2
CIRCUIT DIAGRAM
Z328
Body Electrical
Control Module
(BECM)
13
C1281
LGB
16
WG
5
RLG
15
ULG
11
OP
4
LGO
13
OB
1
LGB
C1278
X272
Wash/Wipe Switch
[1]
Front Wipe Switch 1
[2]
Front Wipe Switch 2
[3]
Front Wipe Switch 3
[4]
Intermittent
Potentiometer
[5]
Front Wash
[6]
Rear Wipe
[7]
Rear Wash
1
C0008
2
C0008
M
S111
See Ground
Distribution
E0560
B
M105
Front Screen
Wash Pump
3
C1584
YG
11
C1289
Z108
Anti–Lock Brake
System ECU
C0504
LHD
RHD
1 =
0 =
Switch Closed
Switch Open
Fast Wipe
Mist
Off
Intermittent
Slow Wipe
S1 S2 S3
1
0
0
0
0
0
0
1
0
0
1
1
0
0
1
7
0
[1]
2
5
3
4
1
8
C0278
6
C0278
B
E0562
S215
0
[2]
0
[3]
0
[4] 0
[5]
0
[6]
0
[7]
See Ground
Distribution
WASH/WIPE
F5
3
CIRCUIT DIAGRAM
30
F 25
20 A
RL1
[1]
2
3
1
5
6
C0576
4
RL8
[8]
2
5
1
3
4
7
5
8
2
C0574
P125a
Engine
Compartment
Fuse Box
[1]
Front Wiper
Control
Relay
[8]
Front Wiper
Interval
Relay
8
C1282
Z238
Body Electrical
Control Module
(BECM)
7
3
C1289
KLG
NLG
NLG
1
C0030
C1593
3
2
M
[2]
[1]
M107
Front Wiper
Motor
[1]
Parked
[2]
Not parked
4
C0030
C1593
LHD
RHD
LHD
RHD
B
ULG
RLG
B
S113
E0556
See Ground
Distribution
S114
E0559
See Ground
Distribution
LHD
RHD
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