Range Rover 2. Electrical Manual - part 42

WASH/WIPE

F5

4

CIRCUIT DIAGRAM

15

F 38

10 A

RL11

[11]

2

3

1

5

5

C176

4

5

4

1

2

C172

P125a
Engine Compart-
ment Fuse Box

[11] Headlamps

Wash/Wipe
Relay

LGR

NU

LGU

LGU

B

S101

E154

See Ground Dis-
tribution

S111

E181

See Ground Dis-
tribution

4

W

6

C113

M

1

C191

2

C191

M

[1]

[2]

4

C160

1

C160

M

[1]

[2]

3

C190

2

R

B

4

B

B

2

1

C190

S114

E167

See Ground Dis-
tribution

Z238
Body Electrical
Control Module
(BECM)

M110
Headlamp Wash
Pump

C175

C177

M157
Right Headlamp
Wiper Motor

[1]

Run

[2]

Park

M156
Left Headlamp
Wiper Motor

[1]

Run

[2]

Park

3

C257

U

4

C219

3

C219

B

X145
Main Lighting
Switch

[2]

Headlamps

E252

See Ground Dis-
tribution

S208

[2]

0

S132

Security/Central
Locking

YB

RB

B

YB

RB

WASH/WIPE

F5

5

CIRCUIT DIAGRAM

30

F 15

20 A

RL8

S111

E181

See Ground Dis-
tribution

M

1

C194

2

C194

M

[1]

[2]

4

C120

BLG

B

M119
Rear Screen
Wash Pump

1

C326

7

C325

OP

OB

B

E621

B

2

C859

C307

1

3

C867

2

M120
Rear Wiper Motor

[1]

Parked

[2]

Not Parked

S851

E322

1

C867

B

Z238
Body Electrical
Control Module
(BECM)

See Ground Dis-
tribution

See Ground Dis-
tribution

C623

WASH/WIPE

F5

6

CIRCUIT DIAGRAM

8

Z238
Body Electrical
Control Module
(BECM)

2

C564

9

18

C626

Automatic
Transmission

Manual Trans-
mission

3

C660

0

[1]

X157
Reverse Switch

S551

E529

E574

UP

UG

S608

S609

S610

UB

10

C659

6

7

C660

C559

6

C562

0

[1]

X

1

0

[2]

Y

2

0

[3]

Z

3

C562

GN

B

5

C560

BG

S607

E621

C560

C560

1

C564

Petrol

Diesel

See Ground Dis-
tribution

See Ground Dis-
tribution

C660

X294
Gear Box Posi-
tion Switch

[1]

X Switch

[2]

Y Switch

[3]

Z Switch

P

0

1

1

R

0

0

1

N

1

0

1

D

1

0

0

3

0

0

0

2

0

1

0

1

1

1

0

Z*

1

1

1

X

Y

Z

GN

UB

Manual Trans-
mission

Automatic
Transmission

Automatic Gear-
box

B

1 =

0 =

* =

Switch Open

Switch Closed

Fault

HEATED FRONT SCREEN

F6

CIRCUIT OPERATION

1

CIRCUIT OPERATION

This operates only with the engine running, which is
determined by the HEVAC panel. In the off state, the
signal is at 12 volts. When the Heated Front
Windscreen is activated, the signal is switched to 0
volts. This provides the ground required for relay 5 to
be pulled in, as there is an ignition feed on the other
side of the coil provided by relay 15. This relay
energises one half of the heated screen elements.

Once relay 5 has been energised, a 12 volt signal is
provided to the coil of relay 4. The other side of the
coil is connected directly to ground, thereby
energising the relay and switching on the other half
of the elements.

There is also a feed spliced from the harness which
provides the petrol Engine Control Module with a
signal that tells the unit there will be a large electrical
load turned on/off.