Range Rover 2. Electrical Manual - part 221

TRAILER AUXILIARY SOCKET

P1

6

CIRCUIT DIAGRAM

REV: 08/99

8

Z238
Body Electrical
Control Module
(BECM)

2

C0167

9

18

C1287

Automatic
Transmission

Manual
Transmission

13

C0746

0

1

X157
Reverse Switch

S551

E1355

UP

UG

S608

S609

S610

UB

6

C0244

0

[1]

X

1

0

[2]

Y

2

0

[3]

Z

3

C0244

GN

B

BS

S607

E0808

C0989

1

C0167

See Ground
Distribution

See Ground
Distribution

X294
Gear Box Position
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

Automatic
Gearbox

1 =

0 =

* =

Switch Open

Switch Closed

Fault

3

5

C0745

C0988

4

2

C0988
C0745

TRAILER AUXILIARY SOCKET

P1

7

CIRCUIT DIAGRAM

E0562

See Ground
Distribution

S215

[1]

0

X145
Main Lighting
Switch

[1]

Side Lamps

3

1

C0041

B

OR

1

0

X154
Rear Fog Guard
Lamps Switch

4

1

C0064

2

C0064

B

B

RN

1

0

X220
Hazard Switch

3

1

C0096

2

C0096

B

B

PG

9

C1278

13

1

C1279

Z238
Body Electrical
Control Module
(BECM)

[3]

0

X273
Direction
Indicator

[3]

Right
Direction
Switch

[4]

Left
Direction
Switch

8

C0036

7

[4]

0

12

C0036

B

[1]

0

X168
Stop Lamp
Switch

[1]

Brake Pedal
Depressed

3

[1]

0

1

C0075

GB

W

9

C1276

Z238
Body Electrical
Control Module
(BECM)

E0562

See Ground
Distribution

S208

GR

7

C1278

GW

2

2

C0075

YP

C0041

S211

See Fuse Details

Anti–Lock Brake
System

4

C1276

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

C1276

See Fuse Details

S205

P

4

C0233

14

P

Z142
Instrument
Cluster

[15] Control Unit

and
Message
Centre
Display

15

C0233

5

13

3

12

2

18

8

17

7

LG

3

C1280

LG

11

OG

9

OG

1

RG

10

RG

2

BG

5

BG

14

B

B

E0564

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.