Range Rover 2. Electrical Manual - part 71

TRAILER AUXILIARY SOCKET

P1

7

CIRCUIT DIAGRAM

E252

See Ground Dis-
tribution

S215

[1]

0

X145
Main Lighting
Switch

[1]

Side Lamps

3

1

C219

B

OR

1

0

X154
Rear Fog Guard
Lamps Switch

6

1

C215

2

C215

B

B

RN

1

0

X220
Hazard Switch

3

1

C212

2

C212

B

B

PG

9

C257

13

1

C255

Z238
Body Electrical
Control Module
(BECM)

[3]

0

X273
Direction Indica-
tor

[3]

Right Direc-
tion Switch

[4]

Left Direc-
tion Switch

8

C236

7

[4]

0

12

C236

B

[1]

0

X168
Stop Lamp
Switch

[1]

Brake Pedal
Depressed

3

[1]

0

1

C227

GB

W

9

C258

Z238
Body Electrical
Control Module
(BECM)

E252

See Ground Dis-
tribution

S208

GR

7

C257

GW

2

2

C227

YP

C219

S211

See Fuse Details

Anti–Lock Brake
System

4

C258

S201

15

F 17

10 A

TRAILER AUXILIARY SOCKET

P1

8

CIRCUIT DIAGRAM

30

F 1

10 A

Z238
Body Electrical
Control Module
(BECM)

7

C258

See Fuse Details

S205

P

4

C242

14

P

Z142
Instrument
Cluster

[15] Control Unit

and Mess-
age Centre
Display

15

C242

5

13

3

12

2

18

8

17

7

LG

3

C256

LG

11

OG

9

OG

1

RG

10

RG

2

BG

5

BG

14

B

B

E254

Z238
Body Electrical
Control Module
(BECM)

[15]

AIR SUSPENSION

S1

CIRCUIT OPERATION

1

CIRCUIT OPERATION

The Electronic Air Suspension (EAS) is designed to
maintain the selected vehicle height under varying
loads. This is achieved by adjusting the quantity of
air within the air springs located next to each wheel.
It should be noted that the system is not intended to
control the roll or dive of the vehicle whilst cornering
or braking. The accuracy of height control achieved
is sufficient to ensure that no additional driver
controlled means of adjusting the headlamp beam is
required to compensate for different vehicle loading
conditions.

The system can operate in any one of five heights or
modes: Access, Low Profile, Standard Profile, High
Profile and Extended Profile. All heights with the
exception of Extended Profile can be selected by the
driver using the ride height switches on the fascia.
When Inhibit is selected (indicated by the Inhibit
switch tell–tale lamp being illuminated), automatic
height changes between Standard and Low Profile
are disabled; it is recommended that Standard
Profile Inhibit mode is selected whenever a trailer is
being towed.

The ride height of the vehicle is displayed to the
driver by the LEDs in the ride height display adjacent
to the ride height switches on the fascia. The LED
for the current ride height is continuously illuminated
whenever the engine is running. When a height
change is taking place, the LED for the new target
height flashes and the LED for the old height
remains continuously illuminated until the new target
height is reached whereupon the old height LED is
extinguished and the new height LED is continuously
illuminated.

It should be noted that if any of the side doors or the
tailgate are open when the vehicle speed is less than
5 mph (8 km/h), all height changes are suspended
until the doors and tailgate are closed. If a door has
been open for more than 30 seconds, then the
system will need “reminding” of the new height after
the door has been closed. This condition is indicated
by the LEDs for the old and new heights both being
continously illuminated.

Application of the footbrake also causes any height
changes to be suspended whilst it is pressed. If the
footbrake has been applied continously for more
than 3 minutes, then height changes are allowed to
resume.

The ride height of the vehicle is correctly maintained
only whilst the engine is running. To compensate for
any changes in load after parking (e.g. driver or
passengers getting out),the EAS system will lower

the vehicle to the height of the lowest corner after
the last door is closed. Furthermore, if the vehicle
should develop a lean due to temperature effects or
air leakage whilst parked, the EAS system is
automatically re–powered every few hours to allow
limited corrections to the height to be achieved.

AIR SUSPENSION

S1

2

CIRCUIT DIAGRAM

P125a
Engine Compart-
ment Fuse Box

C176

8

4

6

15

F 24
5A

Z260
Air Suspension
Delay Turn Off
Timer

C174

8

30

F 44
10A

PR

C118

2

11

12

8

17

Z165
Air Suspension
ECU

35

C117

11

C204

C231

WK

WLG

S118

See Fuse Details

3

C112

5

PO

S123

34

Z165
Air Suspension
ECU

C117

12

S113

See Ground Dis-
tribution

E148

C118

3

SR

6

C104

1

X318
Data Link Con-
nector (OBDII)

B

SG

A

S1-3

S103 LHD

RHD

W

Z238
Body Electrical
Control Module
(BECM)

C204

C104

C231