Discovery electrical Manual - part 68

SUNROOF

L4

1

CIRCUIT DIAGRAM



  



Z147
Window Lift ECU

30

F 5

30 A

B

D

G

C383

C

F

C383

NR

P128
Satellite Fuse
Box 2

WG

X264
Passenger’s Rear
Sunroof Switch

[1]

Open

[2]

Close

See Ground Dis-
tribution



6

C382

3

2

C2085

0

[1]

0

[1]

0

[2]

E200



B

3

C389

2

C287

1

C386

4

C386

2

C389

C383

GW

GB

B

X263
Rear Sunroof
Lockout Switch

1

R

Y

BS

SUNROOF

L4

2

CIRCUIT DIAGRAM

S308











 



[1]

Open

[2]

Close





GU







GK

GR

GO

0

[1]

0

[2]





  



3

H

C383

7

C382

C382

E200

I

C383

B

B

See Ground Dis-
tribution

0

[1]

0

[2]







[1]

Open

[2]

Close

SUNROOF

L4

3

CIRCUIT DIAGRAM

 "  #

!"!





! "

!

[1]

Tilt

W

P



"

!

OU

0

[1]







3

C387

2

C387

4

1







 "

!

[1]

Tilt

O

U

OG

0

[1]







3

C388

2

C388

4

1



S308

S307

N

R

Y

N

R

Y

B

B

CIRCUIT OPERATION

The locking functions on models with the Theft Alarm
System are controlled by the Theft Alarm Unit
(Z163).  Refer to the Theft Alarm System (T1).  The
locking functions on models without the Theft Alarm
System are controlled by the Left Front Door Lock
Actuator (M114).

The four doors and the tailgate are locked or
unlocked using the right front exterior key or the
interior door sill knob.  The rear doors can be
independently locked or unlocked from the inside by
using the appropriate door sill knob.  These can be
overridden when the lock controls in the right front
door are used.  The left front door and the rear doors
may be locked or unlocked in isolation from the
outside using the key or from the inside using the
door sill knob.

Lock

When the doors are locked by the right front exterior
key or the interior door sill knob, the internal
microswitches in the Left Front Door Lock Actuator
(M114) move to the “Lock” position.  Voltage from
fuse F4 is applied to the lock actuators through the K
wires.  The lock actuators are grounded at E201
through the microswitch contacts and the O wires.
The doors and the tailgate now lock.  The solid state
load sensor/timer ensures that the motors operate
only for the time required to lock or unlock the doors
and the tailgate.

Unlock

When the doors are unlocked by the right front
exterior key or the interior door sill knob, the internal
microswitches in the Left Front Door Lock Actuator
(M114) move to the “Unlock” position.  Voltage from
Fuse F4 is applied to the lock actuators through the
O wires.  The lock actuators are grounded at E201
through the microswitch contacts and the K wires.
Since the polarity of the voltage is now reversed, the
doors and the tailgate unlock.

L6

CENTRAL LOCKING

CIRCUIT OPERATION

1