Discovery electrical Manual — part 35
HORNS
E5
1
CIRCUIT DIAGRAM
S2089
30
F 4
30 A
E201
See Fuse Details
P125
Engine Compart-
ment Fuse Box
PN
C101
K189
Horn Relay
30
C283
85
PO
86
87
C283
PG
S2057
S288
See Ground Dis-
tribution
1
C169
2
C169
A
E5-2
K128
Left Horn
K134
Right Horn
1
C168
2
C168
30
85
86
87
B
B
1
HJ5
E200
S2016
HJ10
See Ground Dis-
tribution
HORNS
E5
2
CIRCUIT DIAGRAM
E5-1
PO
5
C2010
PB
6
PO
7
C201
Z119
Rotary Coupler
X145
Main Lighting
Switch
0
[1]
0
[1]
X258
Horn Switches
With Cruise Con-
trol
Without Cruise
Control
1
C2037
PB
PB
1
C2036
1
C2038
PB
0
[1]
X20014
Horn Switch
1
C2037
A
7
C201
X145
Main Lighting
Switch
S2117
Not used
PO
5
C274
Z163
Theft Alarm Unit
S2117
NAS
Except NAS
Steering Column
Horn Brush/Slip
Ring
NAS
Except NAS
RADIO (EXCEPT NAS)
E6
CIRCUIT OPERATION
1
CIRCUIT OPERATION
The audio system consists of a new head unit, and
for mid/high– range, a subwoofer and subwoofer
amplifier. For mid– and high–range, the system is
also equipped with a radio waveband switch and a
tune switch, a volume up and a volume down switch
which are located on the fascia next to the
instrument cluster.
The control head is equipped with an anti–theft
feature which makes the unit inoperative once
battery power is removed. A security code must be
entered to restore power to the unit. On every level
the system is equipped with two rear and two front
speakers. Optional front tweeters are available for
high line radio.
Battery voltage is provided to the control head at all
times through the P wire. In addition to monitoring
the anti–theft feature, this input keeps the preset
station memory alive. Whenever battery power to the
unit is lost, the anti–theft code must be entered and
the preset stations must be reprogrammed.
When the Radio (Z111) and the ignition are turned
on, the voltage signal through the LGO wire and the
control head wakes up the unit. The Radio (Z111)
plays, the VF display comes on, and the control unit
buttons illuminate. The VF display is dimmed when
the headlights or park lights are turned on. When the
lights are on, voltage from fuse F8 of the Fascia
Fusebox (P126) is applied to the Radio (Z111)
terminal 6, connector 230 signalling the Radio (Z111)
to dim the display.
Side Screen Antenna
The antenna is now printed into the rear side screen
on four door models. For America and Japan the
element is fitted in both rear side screens, known as
diversity antenna system. Other markets have a
single element in the right hand side screen only.
Diversity reception means that if vehicle movement
results in a loss of signal due to reflections from
buildings (known as multipath distortion), the radio
will switch to the antenna receiving the strongest
signal. This results in less interference and better
stereo performance.
Antenna Amplifier
New antenna amplifiers are located behind the
headlining above the side screen antenna(s). Right
hand side fitment is an FM + AM amplifier, left hand
side, diversity, is an FM only amplifier.
Subwoofer
The subwoofer unit is located in the right hand side
of the luggage compartment. It amplifies frequencies
between 20 and 150 Hz to give an enhanced bass
sound.
Subwoofer Amplifier
The amplifier is fitted on top of the subwoofer unit.
RADIO (EXCEPT NAS) (LOW LINE)
E6
2
CIRCUIT DIAGRAM
S2061
4
E201
30
F 6
20 A
P
P128
Satellite Fuse
Box 2
6
RN
See Fuse Details
Interior Lamps
C2029
4
See Ground Dis-
tribution
C2055
12
UY
PY
C212
13
Z111
Radio
8
B
Not used
13
5
C230
Except NAS
Low Line Radio
C437
5
X
F 3
10 A
See Fuse Details
P126
Fascia Fuse Box
1
C229
13
C209
1
C426
1
C468
Z178
Right Antenna
Amplifier
C470
C2079
Coaxial Cable
Z181
Right Side Win-
dow Antenna
C230
7
S334
12
C277
LGO
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