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.
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