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

							ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
8
DISCOVERY
[1][2]
M114
Left Front Door
Lock Actuator
[1] Lock
[2] UnlockZ163
Theft Alarm Unit
See Ground Dis-
tributionC225 62
0.5 YK
0.5 GB
5 4 C507
0.3 B
3 C507
0.5 B
S501
E201
6 C502
Not used
[2][1]
M122
Right Front Door
Lock Actuator
[1] Lock
[2] Unlock
See Ground Dis-
tribution5 4 C607
0.3 B
3 C607
0.5 B
S601
E200
6 C602
Not used
0.5 YK 
						

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM T2
Theft Alarm System (NAS 1995)
9
DISCOVERY
Z163
Theft Alarm Unit
Z148
Multi±Function
Unit (MFU)
X212
Alarm Bonnet
Switch
[1] Open X201
Left Front Door
Key Switch
[1] Key turned
[2] Key outX202
Right Front Door
Key Switch
[1] Key turned
[2] Key out
See Ground Dis-
tribution
See Ground Dis-
tributionSee Ground Dis-
tribution 371 12 C225
3
1C602
C604
4 C604
S601
S5014 C504 1 C1782 C1784 C205
0.5 UG
3 C502
1 C504
0.5 B
E201E200 0.5 BB 0.5 PO 0.5 PU 0.5 KB
0.5 UG
0.5 B
S204 [2] [1]
[2] [1]
0[1]
E200
HJ3 
						

							Z163
Theft Alarm Unit85
86
87 30
K208
NAS Alarm Relay
30
87
86C2045 85
C2045
ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
10
DISCOVERY
Z163
Theft Alarm Unit 11 C225
15 C225
Z229
NAS DiodeZ230
Theft Alarm
Diode
0.5 BP S2063
1 C479
0.5 B
E201
See Ground Dis-
tribution
0.5 K
E
T2±6 Z163
Theft Alarm Unit
20 C205Z148
Multi±Function
Unit (MFU)
0.5 PW0.5 PO
2 C212
0.5 BK
F
T2±130.5 BK
S2069
X170
Tailgate Switch
[1] Open 0[1]
S2130.5 PW
HJ11 S2023 
						

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM T2
Theft Alarm System (NAS 1995)
11
DISCOVERY
S103
See Fuse Details
87 C283
1.5 PNP128
Satellite Fuse
Box 21.5 PN
8530 C283
30 85
86
87K189
Horn Relay
86
Z163
Theft Alarm Unit
14 C225 Horns1.5 PG
30
F 4
20 AP125
Engine Compart-
ment Fuse Box
4 C101
3 C274
S2450.5 PO
30
F 6
20 A
See Fuse Details
B151
Theft Alarm LED
4 C209 0.5 RW2 C269 1 C269 0.5 P S2061 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
12
DISCOVERY
85
1
 
Starting and
Charging
Starting and
Charging
Automatic Trans-
missionManual Trans-
missionK137
Starter Solenoid
Relay
Z158
Starter Relay
Diode
X167
Park/Neutral
Position Switch K110
Cruise Control
Lockout Relay
85
30 C2006 0.5 WR 3.0 NW
8630
87
86 87 C2006
0.5 BO
0.5 BY
S2005
HJ2
10 C105 Automatic Trans-
mission
0.5 BY
11 C105
0.5 BO
1 C274
Z163
Theft Alarm Unit 0.5 BY
S322
5 C323
B
0.5 BG
4 C323
0.5 BO
R
N P
2
3
D
85
85 C2021
0.5 BY
2 C218
2.0 NR
Starting and
Charging
Starting and
Charging
1 
						

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM T2
Theft Alarm System (NAS 1995)
13
DISCOVERY
30
F 2
20 A
CT2-14
DT2-14
P127
Satellite Fuse
Box 1
S275
1.0 PU
C279 86 30
86
8530
87a 87
85 87a C279
0.5 BK
E200 1.0 PU
See Fuse Details
1.0 GW
S2019
HJ61.5
GW
0.5 GW
1 C123
B137
Right Repeater
Lamp
2 C123
0.7 GW
2 C1010
1 C1010
0.5 B
S2016
See Ground Dis-
tributionB154
Right Front Indi-
cator LampK159
Theft Alarm
Relay
0.5 GR
S2020
HJ6
0.7 GRC124 1
B122
Left Repeater
Lamp
C124 2
0.7 B
S2033
E201
See Ground Dis-
tribution 0.5 B1.0 GR87
0.5 B
HJ10
HJ111.5
GR
2 C1009
1 C1009B153
Left Front Indica-
tor Lamp


 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
14
DISCOVERY
CT2-13Direction Indicator Lamps
1.5 GW
S239
C204 14 161.5 GR
S241 1.5
GWDT2-131.5
GR
KLP126
Fascia Fuse Box
Z148
Multi±Function
Unit (MFU)
B165
Right Rear Indicator
Lamp 6 C211 4 C211
1.5 GW 1.5 GR
S432 192 C277
S405
3 C400
1.5 B
S423
E400 E401 S4241.5 B2 C445 1 C445Auxiliary Lamps
Enabled with
Main Lighting
Switch in Main
Beam or Dip
Beam PositionAuxiliary Lamps
Enabled with
Main Lighting
Switch in Main
Beam Position
Right Direction
Indicator LampsLeft Direction
Indicator Lamps
4
See Ground Dis-
tributionSee Ground Dis-
tribution
B163
Left Rear Indicator
Lamp
2 C442 1 C442 
						

							THEFT ALARM SYSTEM (NAS 1995)
15
ETM T2
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
TROUBLESHOOTING HINTS
13. Check Fuses F1, F2 and F5 in Satellite Fuse
Box 1.
14. Check Fuse F5 in Satellite Fuse Box 2.
15. If the interior lights do not come on when a
door is open, check suspect door switch and
associated wiring.
16. If all of the lock actuators do not operate,
check O and K  Wire. If OK, replace Theft
Alarm Unit (Z163).
SYSTEM DIAGNOSIS
1. If the system will not arm, do Test A.
2. If the system arms, but will not trigger at all, do
Test C.
3. If the Horns (K128, K134) do not sound when
triggered, do Test C.
4. If the hazard lights do not flash when triggered,
do Test F.
5. If the system will not trigger when the bonnet is
open, do Test G.
6. If the Theft Alarm LED (B151) does not
operate, do Test D.
7. If the Horns (K128, K134) sound continuously,
do Test E.
8. If the system will not disarm, do Test A.
9. If a Front Door Lock Actuator (M114, M122)
does not operate, do Test H.
10. If the doors unlock themselves after operating
the door locks, do  Test I.
11. If the central locking function does not operate
from one of the front doors, do  Test J.
12. If the Tailgate Lock Actuator (M132) does not
operate, do Test K.
13. If both Rear Door Lock Actuators (M117,
M125) do not operate, do Test L. 
						

							ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
16
DISCOVERY
! 






Z163
Theft Alarm Unit

	


	



$
 
 



 	
 	Z163
Theft Alarm Unit

	

 #


 

	

 #


 

	 
	
  $

  	 
	









 
						

							ELECTRICAL TROUBLESHOOTING MANUAL
ETM T2
Theft Alarm System (NAS 1995)
17
DISCOVERY


Z163
Theft Alarm Unit


Z163
Theft Alarm Unit




	


	
R160002R160002
   
 

	


   
 

	


 	
   

	




&# &
 

	




&# &
 
$
(


 


#&

 
  



   ##$%
(

	 $! #& &
V