1999 LAND ROVER DISCOVERY park assist

INTRODUCTION
01-4
λLambda
lc Low compression
LCD Liquid Crystal Display
LED Light Emitting Diode
LH Left-Hand
LHD Left-Hand Drive
LVS Liquid Vapour Separator
mMetre
µMicro
MAF Mass Air Flow
MAP Manifold Absolute Pressure
MFU Multi-Function Unit
MFL Multi-Function Logic
max. Maximum
MEMS Modular Engine Management
System
MIL Malfunction Indicator Lamp
min. Minimum
MPa MegaPascal
- Minus (tolerance)
' Minute (angle)
mm Millimetre
mph Miles per hour
MPi Multi-Point injection
MY Model Year
NAS North American Specification
(-) Negative (electrical)
Nm Newton metre
No. Number
NO
2Nitrogen Dioxide
NO
xOxides of Nitrogen
NTC Negative Temperature
Coefficient
OBD On Board Diagnostics
o.dia. Outside diameter
ORM Off-road Mode
ΩOhm
PAS Power Assisted Steering
PCV Positive Crankcase Ventilation
PDC Parking Distance Control
% Percentage
+ Plus (tolerance) or Positive
(electrical)
±Plus or minus (tolerance)
PTC Positive Temperature Coefficient
PTFE Polytetrafluorethylene
PWM Pulse Width Modulation
rRadius
:Ratio
ref Reference
RES Rover Engineering Standards
rev/min Revolutions per minute
RF Radio Frequency
RH Right-Hand
RHD Right-Hand Drive
ROM Read Only Memory
RON Research Octane Number
ROV Roll Over ValveROW Rest Of World
SAE Society of Automotive Engineers
" Second (angle)
SLABS Self Levelling and Anti-Lock
Brake System
SLS Self Levelling Suspension
SOHC Single Overhead Camshaft
sp.gr Specific gravity
SRS Supplementary Restraint System
std. Standard
synchro Synchronizer or synchromesh
TDC Top Dead Centre
TMAP Temperature, Manifold Absolute
Pressure
TP Throttle Position
TPS Throttle Position Sensor
TV Torsional Vibration
TXV Thermostatic Expansion Valve
UK United Kingdom
US United States
V Volt
Var. Variable
VIN Vehicle Identification Number
VIS Variable Intake System
VRS Variable Reluctance Sensor
VSS Vehicle Speed Signal
WWatt

EXTERIOR FITTINGS
REPAIRS 76-2-13
Bumper assembly - rear - from 03MY
$% 76.22.15
Remove
1.Remove both rear tail lamps.

+ LIGHTING, REPAIRS, Lamp - tail/
flasher - bumper.
2.Disconnect park distance control harness
multiplug.
3.Release rear lamp harness clips.4.Remove 2 bolts securing bumper.
5.With assistance remove bumper.
NOTE: Do not carry out further dismantling if
component is removed for access only.
6.Remove 7 bolts and 5 screws securing closing
panel and remove panel.
M76 4566

EXTERIOR FITTINGS
76-2-14 REPAIRS
7.Disconnect 4 park distance control sensor
harness multiplugs and remove 6 clips
retaining harness.
8.Release 3 clips retaining harness and remove
harness.
9.Noting their fitted positions, release and
remove 4 park distance control sensors and
sensor housings.
Refit
1.Fit sensor housings to bumper, ensuring lugs
on housings are aligned with cut-outs in
bumper.
2.Fit and secure sensors to housings.
3.Fit harness, secure with clips and connect
multiplugs
4.Fit closing panel and secure with bolts and
screws.
5.With assistance, fit bumper assembly to body.
6.Fit bolts securing bumper and tighten to 45 Nm
(33 lbf.ft).
7.Secure rear lamp harness clips and connect
park distance control sensor harness multiplug.
8.Fit both rear tail lamps.

+ LIGHTING, REPAIRS, Lamp - tail/
flasher - bumper.
Trim finisher - bumper - front - from 03MY
$% 76.22.19
Remove
1.Remove 5 screws securing front bumper
finisher to bumper and position the finisher
aside.
2.Release clip securing washer hose to
headlamp washer jet and disconnect the hose.
3.Remove the bumper finisher.
NOTE: Do not carry out further dismantling if
component is removed for access only.
4.Remove clip securing headlamp washer jet to
bumper finisher and remove the washer jet.
Refit
1.Fit and secure headlamp washer jet to bumper
finisher.
2.Position bumper finisher to bumper, fit washer
hose to washer jet and secure with clip.
3.Fit bumper finisher to bumper and secure with
screws.

DRIVING AIDS
86-8-4 DESCRIPTION AND OPERATION
Description
General
Park Distance Control (PDC) is introduced on vehicles from 03 model year. PDC provides an audible warning to the
driver when any obstacles are in the path of the vehicle during a reversing manoeuvre. The purpose of the system is
to assist the driver when parking and is not designed as a crash avoidance system or a replacement for visual
interpretation by the driver.
The system comprises four ultrasonic sensors in the rear bumper, an ECU, a fascia mounted momentary switch and
a sounder unit. The system operates using ultrasonic signals which are transmitted by the sensors. The reflected echo
from this output is received by the sensors and used by the PDC ECU to calculate the distance from an object.
The fascia mounted switch allows the driver to de-activate the PDC system if operation is not required or the vehicle
has a trailer attached.