300Tdi Defender
ELECTRICAL
9
DESCRIPTION AND OPERATION
IMMOBILISATION AND ALARM SYSTEM CIRCUIT
DIAGRAM
1. Anti-theft alarm indicator light (LED)
2. Engine immobilisation warning light
3. Alarm system fuse - 15 amp
4. Alarm sounder relay
5. Under bonnet lighting fuse
6. Alarm sounder (without battery back-up)
7. Alarm system fuse - 5 amp (position 20)
8. Electronic control unit (ECU)
9. Bonnet switch
10. Alarm sounder protection fuse - 20 amp
(position 10)
11. Starter switch
12. Under bonnet ignition fuse
13. Driver’s door switch
14. Vehicle horn switch
15. Vehicle horn
16. Passive coil
17. Starter switch relay
18. Front passenger door switch
19. Hazard warning light fuse - 15 amp (position 1)
20. Ultrasonic sensor
21. Interior lamp and horn fuse - 20 amp (position 3)
22. Alarm sounder (with battery back-up)
23. LH direction indicator lamps
24. RH direction indicator lamps
25. Interior lamp
26. Immobilisation spider
27. Rear side doors and rear door switches
28. Diagnostic connector
29. Diagnostic fuse - 7.5 amp
30. Starter solenoid
31. Fuel switch-off solenoid (injection pump)
32. Generator
33. Aerial
Key to cable colours
B-Black
G-Green
K-Pink
LG-Light Green
N-Brown
O-Orange
P-Purple
R-Red
S-Slate
U-Blue
W-White
Y-Yellow
The last letter of a colour code denotes the tracer
colour
