Discovery electrical Manual - part 73

 

  Index      Land Rover     DISCOVERY ELECTRICAL TROUBLESHOOTING MANUAL 1997-1999 year

 

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Discovery electrical Manual - part 73

 

 

TRAILER AUXILIARY SOCKET

P1

5

CIRCUIT DIAGRAM

S288

15

F 1

15 A

0

[1]

E201

See Fuse Details

10

C204

3

C267

30

F 4

30 A

1

C101

GO

P126
Fascia Fuse Box

P125
Engine Compart-
ment Fuse Box

LGP

5

C215

14

C204

L

Z128
Flasher Unit

W/L

3

C206

B

See Ground Dis-
tribution

15

C204

LGN

Z148
Multi–Function
Unit (MFU)

Z148
Multi–Function
Unit (MFU)

P126
Fascia Fuse Box

1

C254

P126
Fascia Fuse Box

X220
Hazard Switch

2

C267

1

B

+

C

A

P1-6

14

C209

1

C215

PN

HJ11

See Fuse Details

S2089

S2042
HJ1

LGU

Z142
Instrument
Cluster

6

S253

1

C221

HJ8

31

B

E201

See Ground Dis-
tribution

C207

TRAILER AUXILIARY SOCKET

P1

6

CIRCUIT DIAGRAM

S243

20

C215

P1-5

0

[1]

0

[1]

9

7

X220
Hazard Switch

LGN

6

A

2

C2009

[1]

[2]

0

C

P1-7

1

GR

B

P1-7

4

GW

X116
Direction Indica-
tor Switch

[1]

Left

[2]

Right

C2009

GW

GR

Z213
Direction Indica-
tor Diode 2

Z212
Direction Indi-
cator Diode 1

G

G

C208

18

P126
Fascia Fuse Box

Z148
Multi–Function
Unit (MFU)

C267

C267

Direction Indica-
tor Lamps

S239

S241

Direction Indica-
tor Lamps

1

GW

C211

3

GR

L

K

C208

17

C204

3

5

TRAILER AUXILIARY SOCKET

P1

7

CIRCUIT DIAGRAM

GR

S432

GW

S405

3

C400

4

Right Direction
Indicator Lamps

Left Direction
Indicator Lamps

X172
Trailer Auxiliary
Socket

Direction Indica-
tor Lamps

17

C277

11

P1-6

B

P1-6

C

THEFT ALARM SYSTEM (EXCEPT NAS)

T1

CIRCUIT OPERATION

1

CIRCUIT OPERATION

For 1996 models a vehicle alarm system is available
as original equipment. Three different functions are
integrated into the Theft Alarm System:

1. The main function of the system is to offer

easy–to–use remote locking and unlocking of the
vehicle (Central Locking).

2. Anti–Theft System function.

3. Engine Immobilisation function.

NOTE: The Theft Alarm ECU (Z163) is fully
programmable to meet different market
requirements; therefore some of the features listed
will vary dependent on vehicle model or territory.

ALARM COMPONENTS

1. Theft Alarm Unit (Z163)

2. Handset Transmitter

3. Passive Immobilisation Coil (Z270) (Not on all

vehicles!)

4. Alarm Sensor (X213) (Not on all vehicles!)

5. Lock Actuators (M114, M122, M117, M125,

M132)

6. Alarm Bonnet Switch (X212) (Not on all

vehicles!)

7. Right Front Door Key Switch (X202)

8. Door Switches (X150, X118, X142, X163)

9. Rear End Door Switch (X265)

10. Direction Indicator Lamps (Hazard Lamps)

11. Battery Backed Up Alarm Sounder (Z272) (Not

on all vehicles!)

12. Alarm Sounder (Z171) and Sounder Relay

(K160) (Not on all vehicles!)

13. Theft Alarm LED and Engine Immobilised

Warning Lamp (EIWL) (Included in the
Instrument Cluster (Z142))

14. Engine Immobilisation Control Unit (Z171)

MFI–V8 and 300 Tdi without EDC Engines only
(Not on all vehicles!)

Central Locking FUNCTION

Central Locking is controlled by the Theft Alarm Unit
(Z163) and may be locked by using the driver’s door
key, sill button(s) or handset. The vehicle may be
unlocked by using the handset or EKA code.

NOTE: The central door locking system will shut
down for a period of approximately 15 seconds if the
Theft Alarm Unit (Z163) determines that the Lock
Actuators could be overheating.

ANTI–THeft System Function

The alarm system offers the following forms of
protection:



Perimetric protection against unauthorised
opening of all doors, tailgate, and bonnet.



Engine crank inhibit against unauthorised engine
crank.



Electronic engine immobilisation against
unauthorised engine start.



Volumetric protection against intrusion into the
passenger compartment.

NOTE: Perimetric protection is also triggered by the
driver’s door sill switch being lifted and the ignition
switch being turned on.

 

 

 

 

 

 

 

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