Land Rover Discovery Lhd Models Etm 1995 4th Edition Exp Rover Manual

							19
37
551
20
38
ELECTRICAL TROUBLESHOOTING MANUA L
E3 ETM
Warnings and Indicators (NAS)
16
DISCOVERY


 
 
 
 	
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Z142
Instrument
Cluster




Z132
Engine Control
Module (ECM)


	
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Instrument
Cluster %
	



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Engine Control
Module (ECM)











 

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							ELECTRICAL TROUBLESHOOTING MANUAL
ETM E3
Warnings and Indicators (NAS)
17
DISCOVERY

	 	 
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Z142
Instrument
Cluster




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Instrument
Cluster $
$
Instrument
Cluster
	




	 	
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$
  
    $Z126
Service
Reminder Unit



	
		
	











 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
E3 ETM
Warnings and Indicators (NAS)
18
DISCOVERY
	
	
	




 

 

	



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Service
Reminder Unit )

 



	



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Z126
Service
Reminder Unit
 
 

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213
Instrument
Cluster
 

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Brake Fluid Level
Switch ) !%










 

X111
Brake Fluid Level
Switch
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							ELECTRICAL TROUBLESHOOTING MANUAL
ETM E3
Warnings and Indicators (NAS)
19
DISCOVERY



	 	


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Handbrake
Switch $


	 	


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Switch 	 
	
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X238
Differential Lock
Switch X191
Handbrake
Switch

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Drivers Seat
Buckle Switch 
ELECTRICAL TROUBLESHOOTING MANUA L
E3 ETM
Warnings and Indicators (NAS)
20
DISCOVERY

 






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Instrument
Cluster /



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Z148
Multi±Function
Unit (MFU)
1 2 3 4 5 6 7 8 9 10 11 12
19 20 21 22 23 24 1415 16 17 18 13
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/
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Z148
Multi±Function
Unit (MFU)
1 2 3 4 5 6 7 8 9 10 11 12
19 20 21 22 23 24 1415 16 17 18 13
	

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ELECTRICAL TROUBLESHOOTING MANUAL
ETM E3
Warnings and Indicators (NAS)
21
DISCOVERY

 






  ! 


 

	 
	
  

Transfer Box Oil
Temperature
Switch 
 
Automatic Trans-
mission Oil Tem-
perature Switch 
V






X108
Automatic Trans-
mission Oil Tem-
perature Switch
 



   
						

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM E5
Horns
1
DISCOVERY
S103
30
F 4
20 A
E201
See Fuse Details
P125
Engine Compart-
ment Fuse Box
1.5 PNC101
K189
Horn Relay 30 C283 85
0.5 PO86 87 C283
1.5 PG
S2057
S288
See Ground Dis-
tribution
1 C169
2 C169
A
E5-2
K128
Left HornK134
Right Horn
1 C168
2 C168
30 85
86 87
1.5 B 1.5 B4
HJ11
E200 S2003
HJ10 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
E5 ETM
Horns
2
DISCOVERY
A
E5-1
0.5 PO
5 C2010 0.5 PO
0.5 PB
0.3 PB
6
0.5 PO
7 C201
Z119
Rotary CouplerX145
Main Lighting
Switch
0 [1]0 [1]X258
Horn Switches
With Cruise Con-
trolWithout Cruise
Control
21 C202
0.5 PO
0.5 PO
S245
Z163
Theft Alarm Unit 3 C274 NAS Except NAS
1 C2037PB
0.3 PB
1 C2036
1 C2038PB0 [1]X20014
Horn Switch 1 C2037J187
Steering Column
Horn Brush/Slip
Ring 
						

							RADIO (EXCEPT NAS)
1
ETM E6
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
CIRCUIT OPERATION
The new audio system consists of a new head unit
and for mid/high range it is equipped with a
subwoofer and subwoofer amplifier. For mid and
high range the system also is 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.
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 present
station memory alive. Whenever battery power to
the unit is lost, the anti±theft code must be entered
and the present 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. 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
E6 ETM
Radio (except NAS) (Low Line)
2
DISCOVERY
S2061
4 C230
E201
30
F 6
20A
0.5 PP128
Satellite Fuse
Box 2
6 0.5 RN7
R
F 3
10A
1.5 LGOP126
Fascia Fuse Box
See Fuse Details
Interior Lamps
1.0 LGO
C2029 6
See Ground Dis-
tribution
C2055 12 0.5 UY
0.5 PY
C212 9Z111
Radio
C2079
Z233
Antenna
8
1.5 B
Not used
13
13 C209
1 C229
1.5
LGO
5 C230