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

ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
28
DISCOVERY
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ELECTRICAL TROUBLESHOOTING MANUAL
ETM T2
Theft Alarm System (NAS 1995)
29
DISCOVERY


 	
 

 	
 
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ELECTRICAL TROUBLESHOOTING MANUA L
T2 ETM
Theft Alarm System (NAS 1995)
30
DISCOVERY
 

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ELECTRICAL TROUBLESHOOTING MANUAL
ETM T2
Theft Alarm System (NAS 1995)
31
DISCOVERY
	 
 	 
 




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THEFT ALARM SYSTEM (NAS 1994)
1
ETM T3
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
CIRCUIT OPERATION
The main function of the system is to offer
easy±to±use remote locking and unlocking of the
vehicle without having to actively select the alarm
function.
ALARM COMPONENTS
14. Theft Alarm Unit (Z163) and Theft Alarm Relay
(K159)
15. Alarm Bonnet Switch (X212)
16. Tailgate Switch (X170)
17. Horns (K128, K134) and Horn Relay (K189)
18. Theft Alarm LED (B151)
19. Front Door Key Switches (X201, X202)
20. Lock...

THEFT ALARM SYSTEM (NAS 1994)
2
T3 ETM
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUA L
Vehicle Status Indication
Vehicle status is indicated by up to three devices:
(a) Alarm Sounder (Z171), (b) hazard lights, (c)
Theft Alarm LED (B151). When the vehicle arms in
either mode, the hazard lights will flash three times
and the LED will flash rapidly for 10 seconds. LED
will then flash at a slower rate while vehicle is
armed. When the vehicle disarms, hazard lights will
flash once and LED will extinguish. If LED...

THEFT ALARM SYSTEM (NAS 1994)
3
ETM T3
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUAL
Partially armed mode
If a door, tailgate or bonnet is left open when the
system is armed, the LED will not light for 10
seconds indicating a mislock condition. Hazard
lights will not flash.  The alarm will sound if ignition
is turned to start position.  If the door, tailgate or
bonnet is subsequently closed, after a 5 second
delay, the doors will unlock and immediately lock,
and the system will fully arm.
Handset...

THEFT ALARM SYSTEM (NAS 1994)
4
T3 ETM
DISCOVERY
ELECTRICAL TROUBLESHOOTING MANUA L
BUILT IN TEST PROCEDURE
The built in test procedure is accessed as follows:
1. Starting conditions: ignition off, doors unlocked,
bonnet switch depressed.
2. Carry out instructions 3 to 7 within 8 seconds.
3. Release bonnet switch.
4. Switch ignition ON.
5. Lock doors.
6. Switch ignition OFF.
7. Switch ignition ON.
If alarm is correctly accessed, horn will sound and
LED will flash. The following checks can be made:
8....

ELECTRICAL TROUBLESHOOTING MANUAL
ETM T3
Theft Alarm System (NAS 1994)
5
DISCOVERY
S2032
30
F 1
15 A
E20015
F 5
10 A
S2017P127
Satellite Fuse
Box 1
Z163
Theft Alarm Unit
See Ground Dis-
tribution 1.0 P
6 C2741.0 GK
HJ2
0.5 GK
10
2 C274
HJ30.5 BO
C225
J188
Antenna 

ELECTRICAL TROUBLESHOOTING MANUA L
T3 ETM
Theft Alarm System (NAS 1994)
6
DISCOVERY


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#	
C274 45
1.0 O 1.0 K
1.0 O0.5 O
2 C306
0.5 O
S314
0.5 O1.0 O
8 C602
0.5 O1.0 O
8 C502
1 C507
2 C5079 C502 1.0 K
1.0 K
9 C602
0.5 K
2 C607
1 C6070.5 K
3 C306
0.5 K
S315
2 C701
2 C706
1 C706
1 C701
1 C801
1 C806
2 C806
2 C8010.5 K
1.0 K
S2007...