Land Rover Anti Lock Control Traction Control Rover Manual

Multi-plate Clutch Assembly
Pressure disc1
Clutch plate assembly2
Pressure disc3
Thrust race4
Output actuator5
Actuator balls6
Input actuator7
Bearing pre-load spacer8
Reduction gearset9
Actuator motor10
The multi-plate clutch assembly for both centre (transfer
box) and electronic rear differentials act in a similar
way. The aim of the multi-plate clutch assembly is to
prevent excessive differential slip and therefore
maximise the traction performance of the vehicle. This
is fundamentally different from...

assembly biases the torque from the differential to the
wheels with the higher grip and prevents the wheels
with the lower grip from spinning.
By turning the input actuator disc, via the motor shaft,
the output actuator is rotated. This movement acts on 5
balls in a ramp mechanism between the input and output
actuators and gives a defined axial movement. The
movement forces the pressure disc to induce friction
between the sun gear and differential case via the clutch
plates supported by the sun gear and...

If the control module is replaced, T4 must be connected
to the vehicle and the electronic rear differential control
module self-calibration procedure must be performed.
This procedure must also be performed if the motor or
differential assembly is replaced.
If a fault occurs with the electronic rear differential, the
control module or one of the required input signals, i.e.
road speed signal, the control module records an error
code and a warning lamp, in the instrument cluster,
illuminates permanently....

Connector C2164
Input/outputDescriptionPin No.
Input+ve for actuator Hall sensor1
-Not used2
OutputActuator motor3
InputHall sensor - Signal A4
-Not used5
-Not used6
InputHall sensor - Signal B7
InputDifferential oil temperature sensor8
-Not used9
-Ground - Hall sensor10
OutputDifferential oil temperature sensor11
InputActuator motor12
OutputMotor temperature sensor13
-Not used14
-Not used15
InputMotor temperature sensor16
OutputMotor brake solenoid17
InputMotor brake solenoid18
CAN Bus Messages
The CAN...

The following table shows the messages that can be
displayed in the message centre of a high-line instrument
cluster relating to the electronic rear differential:
ChimeDescriptionMessage
NoneRear differential temperature has
reached or is approaching the over-
heat threshold.
TRANSMISSION OVERHEAT
SLOW DOWN
NoneTransfer box control module has
stopped transmitting CAN bus
messages. Defaults to open centre
differential.
Message also displayed when fault
occurs with electronic rear differen-
tial....

electronic rear differential control module which does
not provide feedback to the Terrain Response™ system
as it is a slave to the transfer box control module.
SERVICE
The oil used in the electronic rear differential is Castrol
SAF-Carbon Mod Plus. The oil contains unique
additives and friction modifiers, which enhance the
differentials operation. No other oil must be used in the
electronic rear differential.
Electronic Rear Differential Serviceable
Components
•Halfshaft seals
•Needle roller bearing...

ELECTRONIC REAR DIFFERENTIAL CONTROL DIAGRAM
NOTE: A = Hardwired
Ignition switch1
Fusible link (battery)2
Actuator motor3
Oil temperature sensor4
Electronic rear differential control module5
Fuse (ignition)6
Rear Drive Axle and DifferentialLesson 2 – Chassis
103Technical Training (G421061) 

Rear Suspension Component Location
Bolt (Upper control arm forward bush)1
Bush - Forward (Upper control arm)2
Caged nut (Upper control arm forward bush)3
Bolt (Upper control arm rearward bush)4
Rear SuspensionLesson 2 – Chassis
23Technical Training (G421045) 

Bush - Rearward (Upper control arm)5
Caged nut (Upper control arm rearward bush)6
Upper control arm7
Eccentric washer (Wheel knuckle upper ball
joint)
8
Nut (Wheel knuckle upper ball joint)9
Bolt (Wheel knuckle upper ball joint)10
Special nut (Adjustable transverse toe link)11
Adjustable transverse toe link12
Washer (Adjustable transverse toe link)13
Damper module assembly (Air)14
Damper module assembly (Coil)15
Bolt (Adjustable transverse toe link)16
Ball joint (Wheel knuckle upper)17
Wheel knuckle and...

DAMPER MODULE - AIR SUSPENSION
Strap*1
Upper gaitor*2
Self-locking nut*3
Rebound washer*4
O-ring - Damper rod*5
Spacer - Damper rod*6
Air spring*7
Retaining pin - Air spring sleeve support*8
Bump washer*9
Spring aid*10
O-ring - Air sleeve support (2 off)*11
Damper rod12
Damper assembly13
Strap*14
Lower gaitor*15
Strap*16
Self-locking nut (3 off)17
Top mount assembly18
Bush19
Voss connector20
NOTE: * Shows service items
The damper module comprises an air spring assembly,
top mount and a damper assembly....