Land Rover Anti Lock Control Traction Control Rover Manual

The air suspension control module will stop all height
change requests while any of the doors are open. Vehicle
levelling continues with a door open by keeping the
vehicle at the height when the door was opened if the
vehicle load changes.
Diagnostics
The air suspension control module can store fault codes
which can be retrieved using T4. The diagnostic
information is obtained via the diagnostic socket which
is located in the lower instrument panel closing panel,
on the drivers side, below the steering...

Vehicle returns to on-road mode height when next
requested
•
•Does not level at current height.
–Failure of multiple height sensors, cross-articulation
when driving, calibration corrupted
•Vehicle lowers to bump stops.
–ABS module failure, CAN bus failure
•If the air suspension control module loses
communications with the ABS module or the
ABS module reports a fault, the air suspension
control module immediately returns to the
default height, which is below the on-road ride
height. Once at the default...

AIR SUSPENSION SWITCH
Crawl mode lamp1
Access mode lamp2
Lowering lamp3
On-road mode lamp4
Air suspension switch5
Raising lamp6
Off-road mode lamp7
Terrain Response™ rotary control8
Transfer box range switch9
Hill Descent Control (HDC) switch10
The air suspension control switch is located in the center
console, behind the manual or automatic transmission
selector lever. The switch is a three position,
non-latching switch which allows selection of the
following driver selectable modes:
•Off-road mode...

FRONT AND REAR AXLE VALVE BLOCKS
Isolation rubber mounts (3 off)1
Location slots2
Front valve block, valves and solenoid assembly3
Front bumper armature4
Electrical connector5
LH air spring damper module air harness
connection
6
Air inlet/outlet connection7
RH air spring damper module air harness
connection
8
Rear valve block, valves and solenoid assembly9
RH air spring damper module air harness
connection
10
Air inlet/outlet connection11
LH air spring damper module air harness
connection
12
Rear...

side of the chassis. The isolation rubber mounts locate
in the V shaped slots and are pulled downwards into
positive location in the slots.
The front and rear valve blocks each have three air pipe
connections which use Voss type air fittings. One
connection is an air pressure inlet/outlet from the
reservoir valve block. The remaining two connections
provide the pressure connections to the left and right
hand air springs.
Each valve block contains three solenoid operated
valves; two corner valves and one...

Front valve block connection8
Air supply unit connection9
Pressure sensor10
The reservoir valve block controls the storage and
distribution of air from the reservoir. The reservoir valve
block also contains the system pressure sensor.
The reservoir valve block is attached to a bracket on the
outside of the left hand chassis rail, between the
reservoir and the air supply unit. The valve block is
located within the air supply unit acoustic box to protect
it from dirt ingress and damage from stones. The...

AIR SUPPLY UNIT
Mounting bracket1Air dryer2
Vehicle Dynamic SuspensionLesson 2 – Chassis
69Technical Training (G421053) 

Pilot exhaust valve solenoid and temperature
sensors harness connector
3
Motor harness connector4
Intake port5
Pilot exhaust valve6
Exhaust valve7
Isolation mounting rubber (2 off)8
Electric motor9
Isolation mounting rubber (1 off)10
Pilot air pipe11
Pressure outlet to pilot exhaust valve12
Compressor cylinder head temperature sensor13
Compressor14
The air supply unit is located on the outside of the left
hand chassis rail, forward of the upper control arm. The
unit is attached to the chassis rail with...

The air supply unit comprises the following major
components:
•A piston compressor
•A 12V electric motor
•A solenoid operated pilot valve
•An exhaust valve
•An air dryer unit
The air supply unit can be serviced in the event of
component failure, but is limited to the following
components; air dryer, pilot exhaust pipe and the rubber
mounts.
The air supply unit is attached to a bracket which is
bolted to the chassis. The unit is mounted to the bracket
with flexible isolation mounting rubbers which assist...

Valve seat3
Intake silencer port4
Delivery valve5
Valve guide6
Cylinder head7
Dryer case8
Desiccant9
Pilot exhaust line10
Isolation rubber mount11
Motor assembly12
Crankcase13
Crank14
Crankcase cover15
Connecting rod16
Piston17
Pilot exhaust valve18
Spring - pressure relief19
Pilot Exhaust Valve
A solenoid operated pilot exhaust valve is connected to
the air delivery gallery, downstream of the air dryer.
The pilot valve, when opened, operates the main
compressor exhaust valve. This allows the air...