2001 LAND ROVER FREELANDER sensor

INTRODUCTION
01-4
HRW Heated Rear Window
ht/HT High tension
HSLA High Strength Low Alloy
IACV Idle Air Control Valve
IAT Intake Air Temperature
ICE In-Car Entertainment
i.dia. Internal diameter
IDM Intelligent Driver Module
IF Intermediate Frequency
in Inch
in
2Square inch
in3Cubic inch
ILT Inlet Throttle
ISO International Organisation for
Standardisation
ITS Inflatable Tubular Structure
k Thousand
kg Kilogramme
kg/h Kilogrammes per hour
km Kilometre
km/h Kilometres per hour
kPa KiloPascal
KS Knock Sensor
lLitre
lb(s) Pounds
lbf Pounds force
lbf.in Pounds force inches
lbf/in
2Pounds per square inch
lbf.ft Pounds force feet
λLambda
lc Low compression
LCD Liquid Crystal Display
LED Light Emitting Diode
LEV Low Emission Vehicle
LH Left-Hand
LHD Left-Hand Drive
LSM Light Switch Module
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
MIG Metal/Inert Gas
MIL Malfunction Indicator Lamp
MPa MegaPascal
MOSFET Metal Oxide Semiconductor Field
Effect Transistor
min. Minimum
- Minus (tolerance)
' Minute (angle)
mm Millimetre
mph Miles per hour MPi Multi-Point injection
MV Motorised Valve
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
NRV Non Return Valve
OBD On Board Diagnostics
OBM On Board Monitoring
o.dia. Outside diameter
OAT Organic Acid Technology
ORM Off-road Mode
ΩOhm
PAS Power Assisted Steering
PCB Printed Circuit Board
PCV Positive Crankcase Ventilation
PDC Parking Distance Control
PDOP Position Dilation Of Precision
PI Programme Information
PPS Pulse Per Second
PS Programme Service
psi Pounds per square inch
pts. Pints
% Percentage
+ Plus (tolerance) or Positive
(electrical)
±Plus or minus (tolerance)
PTC Positive Temperature Coefficient
PTFE Polytetrafluorethylene
PWM Pulse Width Modulation
RDS Radio Data Service
rRadius
:Ratio
ref Reference
REG Regionalisation
RES Rover Engineering Standards
rev/min Revolutions per minute
RF Radio Frequency
RGB Red / Green / Blue
RH Right-Hand
RHD Right-Hand Drive
ROM Read Only Memory
RON Research Octane Number
ROV Roll Over Valve
ROW Rest Of World
SAE Society of Automotive Engineers
SAI Secondary Air Injection
" Second (angle)
SLABS Self Levelling and Anti-Lock
Brake System
SLS Self Levelling Suspension
SOHC Single Overhead Camshaft
SPE Single Point Entry

INTRODUCTION
01-5
sp.gr Specific gravity
SRS Supplementary Restraint System
std. Standard
synchro Synchronizer or synchromesh
TA Traffic Announcement
TDC Top Dead Centre
TM Thermostat Monitoring
TMAP Temperature, Manifold Absolute
Pressure
TMC Traffic Management Channel
TP Throttle Position
TPS Throttle Position Sensor
TV Torsional Vibration
TWC Three-way Catalyst
TXV Thermostatic Expansion Valve
UK United Kingdom
US United States
US galls/h US gallons per hour
V Volt
Var. Variable
VDOP Velocity Dilation Of Precision
VICS Vehicle Information
Communications System
VIN Vehicle Identification Number
VIS Variable Intake System
VRS Variable Reluctance Sensor
VSS Vehicle Speed Signal
WWatt
WOT Wide Open Throttle

GENERAL INFORMATION
03-19
Electrical precautions
General
The following guidelines are intended to ensure the
safety of the operator and ensure the prevention of
damage to the electrical and electronic components
fitted to the vehicle. Where necessary, specific
precautions are detailed in the individual procedures
of this manual.
Equipment
Prior to commencing any test procedure on the
vehicle, ensure that the relevant test equipment is
working correctly and any harness or connectors are
in good condition. It is particularly important to check
the condition of the lead and plugs of mains operated
equipment.
Polarity
Never reverse connect the vehicle battery and
always ensure the correct polarity when connecting
test equipment.
High Voltage Circuits
Whenever disconnecting live ht circuits, always use
insulated pliers and never allow the open end of the
ht lead to contact other components, particularly
ECU's.
Exercise caution when measuring the voltage on the
coil terminals while the engine is running, high
voltage spikes can occur on these terminals.
Connectors and harnesses
The engine compartment of a vehicle is a particularly
hostile environment for electrical components and
connectors:
lAlways ensure electrically related items are dry
and oil free before disconnecting and
connecting test equipment.
lEnsure disconnected multiplugs and sensors
are protected from being contaminated with oil,
coolant or other solutions. Contamination could
impair performance or result in catastrophic
failure.
lNever force connectors apart using tools to
prise apart or by pulling on the wiring harness.
lAlways ensure locking tabs are disengaged
before disconnection, and match orientation to
enable correct reconnection.
lEnsure that any protection (covers, insulation
etc.) is replaced if disturbed.Having confirmed a component to be faulty:
lSwitch off the ignition and disconnect the
battery.
lRemove the component and support the
disconnected harness.
lWhen replacing the component, keep oily hands
away from electrical connection areas and push
connectors home until any locking tabs fully
engage.
Battery disconnection
Before disconnecting the battery, disable the alarm
system and switch off all electrical equipment. If the
radio is to be serviced, ensure the security code has
been deactivated.
CAUTION: To prevent damage to electrical
components, always disconnect the battery
when working on the vehicle's electrical system.
The ground lead must be disconnected first and
reconnected last.
CAUTION: Always ensure that battery leads are
routed correctly and are not close to any
potential chafing points.
Battery charging
Only recharge the battery with it removed from the
vehicle. Always ensure any battery charging area is
well ventilated and that every precaution is taken to
avoid naked flames and sparks.
Ignition system safety precautions
The vehicle's ignition system produces high voltages
and the following precautions should be observed
before carrying out any work on the system:
WARNING: Before commencing work on an
ignition system, ensure all high tension
terminals, adapters and diagnostic equipment
are adequately insulated and shielded to prevent
accidental personal contacts and minimise the
risk of shock. Wearers of surgically implanted
pacemaker devices should not be in close
proximity of ignition circuits or diagnostic
equipment.

GENERAL DATA
04-8
Pistons
Type Aluminium alloy, tin plated, thermal expansion with offset gudgeon pin
Piston diameter:
⇒ Grade A 79.975 - 79.990 mm (3.1486 - 3.1492 in.)
⇒ Grade B 79.991 - 80.005 mm (3.1492 - 3.1498 in.)
Clearance in bore 0.01 - 0.04 mm (0.0004 - 0.0016 in.)
Maximum ovality 0.30 mm (0.012 in.)
Piston rings:
Type: 2 compression, 1 oil control
⇒ Top compression ring Barrel faced, granulite coated
⇒ 2nd compression ring Tapered, phosphate coated
⇒ Oil control ring Nitrided ring with radii and spring
New ring to groove clearance:
⇒ Top compression ring 0.040 - 0.072 mm (0.0016 - 0.0028 in.)
⇒ 2nd compression ring 0.030 - 0.062 mm (0.0012 - 0.0024 in.)
⇒ Oil control ring 0.010 - 0.180 mm (0.0004 - 0.0071 in.)
Ring fitted gap 20 mm (0.75 in) from top of bore:
⇒ Top compression ring 0.20 - 0.35 mm (0.008 - 0.014 in.)
⇒ 2nd compression ring 0.28 - 0.48 mm (0.011 - 0.019 in.)
⇒ Oil control ring 0.15 - 0.40 mm (0.006 - 0.016 in.)
Piston ring width:
⇒ Top compression ring 0.978 - 0.990 mm (0.0385 - 0.0390 in.)
⇒ 2nd compression ring 1.178 - 1.190 mm (0.0464 - 0.0469 in.)
⇒ Oil control ring 0.33 - 0.38 mm (0.0130 - 0.0150 in.)
Camshaft
Type DOHC acting directly on tappets, incorporates target/reluctor for
camshaft sensor
Bearings 6 per camshaft, direct line bored
Drive Toothed belt driven from crankshaft gear, automatically tensioned
Camshaft end-float 0.06 - 0.19 mm (0.002 - 0.007 in.)
⇒ Service limit 0.30 mm (0.012 in.)
Bearing clearance 0.060 - 0.094 mm (0.0024 - 0.0037 in.)
⇒ Service limit 0.15 mm (0.006 in.)
Tappets
Type Self-adjusting lightweight hydraulic tappets, operated directly from
camshafts
Tappet outside diameter 32.959 - 32.975 mm (1.2976 - 1.2982 in.)
Valve timing:
Inlet valves:
⇒ Opens
⇒ Closes
⇒ Maximum lift12° BTDC
52° ABDC
8.8 mm (0.35 in.)
Exhaust valves:
⇒ Opens
⇒ Closes
⇒ Maximum lift52° BBDC
12° ATDC
8.8 mm (0.35 in.) General

GENERAL DATA
04-10
Sensors:
Crankshaft sensor Siemens NSC 100630, Hall effect acting on profiled target on flywheel
Camshaft sensor:
⇒ Make / Type ITT NSC 100610 +0, Hall effect acting on camshaft reluctor ring
⇒ Ring TGN 100050
Oxygen sensor:
⇒ Make / Type NTK - MHK 100720
⇒ Heating element (nominal) 7 Watts
⇒ Sensor voltage - High≈ 900 mV
⇒ Sensor voltage - Low≈ 40 mV
Throttle potentiometer:
⇒ Make / Type CTS - MJC 100020
⇒ Total track resistance 4 kΩ ± 20%
⇒ Sensor supply voltage 5V ± 4%
TMAP sensor:
⇒ Make / Type Motorola - MHK 100820
⇒ Sensor supply voltage 5V ± 4%
Coolant temperature sensor:
⇒ Make / Type AB Electronik - MEK 100170; NTC thermistor bead
Oil temperature sensor
⇒ Make / Type AB Elektronik - MEK100170; NTC thermistor bead General

GENERAL DATA
04-14
Clearance in bore 20 mm (0.75 in.) from bottom of
cylinder bore0.034 - 0.035 mm (0.0013 - 0.0014 in.)
Maximum ovality 0.3 mm (0.012 in.)
Piston rings
Type:
⇒ Top compression ring Chrome plated steel
⇒ 2nd compression ring Chrome plated cast iron
⇒ Oil control ring Stainless steel top and bottom rails with expander ring
New ring to groove clearance:
⇒ Top compression ring 0.05 - 0.08 mm (0.0020 - 0.0031 in.)
⇒ 2nd compression ring 0.04 - 0.07 mm (0.0012 - 0.0024 in.)
⇒ Oil control ring 0.010 - 0.180 mm (0.0004 - 0.0071 in.)
Ring fitted gap 20 mm (0.75 in) from top of bore:
⇒ Top compression ring 0.20 - 0.35 mm (0.008 - 0.014 in.)
⇒ 2nd compression ring 0.28 - 0.45 mm (0.011 - 0.018 in.)
⇒ Oil control ring 0.25 - 1.00 mm (0.010 - 0.039 in.)
Piston ring width:
⇒ Top compression ring 3.1 ± 0.15 mm (0.122 ± 0.006 in.)
⇒ 2nd compression ring 3.15 - 3.45 mm (0.124 - 0.136 in.)
⇒ Oil control ring 2.286 - 2.438 mm (0.090 - 0.096 in.)
Camshaft
Type Twin camshafts on each cylinder bank retained by camshaft carrier,
line bored with cylinder head. Reluctor for camshaft sensor mounted
on left hand inlet camshaft
Camshaft identification:
⇒ Inlet Orange paint mark
⇒ Exhaust Blue paint mark
Bearings 5 per camshaft
Drive Toothed belt driven from crankshaft to front of inlet camshafts, 2 x
short toothed belts from rear of inlet camshafts to exhaust camshafts
Camshaft end-float 0.06 - 0.19 mm (0.002 - 0.007 in.)
⇒ Service limit 0.3 mm (0.012 in.)
Bearing clearance 0.025 - 0.059 mm (0.0010 - 0.0023 in.)
⇒ Service limit 0.1 mm (0.004 in.)
Tappets
Type Hydraulic self-adjusting, directly operated from camshafts
Tappet outside diameter 32.959 - 32.975 mm (1.2976 - 1.2982 in.)
Valve timing
Inlet valves:
⇒ Opens
⇒ Closes2° BTDC
54° ABDC
Exhaust valves:
⇒ Opens
⇒ Closes50° BBDC
14° ATDC
Valve maximum lift:
Inlet valves 8.2 mm (0.32 in.)
Exhaust valves 8.8 mm (0.35 in.) General

GENERAL DATA
04-16
Fuel system - Td4 Diesel
System Common rail, direct injection
Fuel specification EN590 diesel*
⇒ Pump output 250 kPa (2.5 bar, 36.3 lbf.in
2)
Fuel pump
⇒ Up to 03 MY
⇒ Pump output
⇒ 03 MY onwardsElectric - submersible in fuel tank
250 kPa (2.5 bar, 36.3 lbf.in
2)
Fuel tank pump deleted, replaced by auxiliary delivery pump located
in RH rear wheel arch
Auxiliary delivery pump
⇒ Up to 03 MY
⇒ 03 MY onwardsElectrical - in line, located in engine compartment
Electrical - in line, located in RH rear wheel arch
Maximum delivery volume 240 litres per hour (52.75 imp. gallons) @ 12V
Fuel high pressure pump Bosch Cp1 mechanical high pressure, 3 radial piston
⇒ Drive Chain driven from crankshaft at 0.75 x engine speed
⇒ Pressure control Mounted on CP1, controlled by DDE 4.0
Pressure regulator
⇒ Up to 03 MY
⇒ 03 MY onwardsLocated in engine compartment between fuel filter and injection pump
Incorporated with in-tank suction and sender module
⇒ Pressure (nominal) 2.4 to 2.8 bar (34.8 to 40.6 lbf.in
2)
Injectors:
⇒ Make
⇒ Nozzle type
⇒ Position
⇒ Impedance
⇒ Injector operating pressureBosch CRI 0445 110 030
DSLA 145P 868
Central
14.5 Ω ± 5% @ 20%
250 - 1350 bar (3625 - 19575 lbf.in
2)
Injection begins:
⇒ Pre-injection (maximum) 60° BTDC
⇒ Main injection (maximum) 25° BTDC
⇒ Post injection 100 - 200° crank ATDC
Injection timing Controlled by Bosch DDE 4.0 engine management system for
common rail injection
Injection quantity 1 - 80 mm
3
Pre-delivery fuel pressure sensor
⇒ Up to 03 MY
⇒ 03 MY onwardsBosch / DS-K-400/50, located in filter head
Bosch /DS-K-400kPa, in-line, located in engine compartment
⇒ Pressure 400 kPa (58.0 lbf/in
2)
Fuel rail pressure sensor:
⇒ Measuring range 0 - 1500 bar (0-21750 lbf/in
⇒ Over pressure (max.) 1800 bar (26100 lbf/in
2)
⇒ Burst pressure 3000 bar (43500 lbf/in
2)
⇒ Temperature range -40°C to +120°C (-40°F to +248°F)
Fuel filter
⇒ Up to 03 MY
⇒ From 03 MYIn-line between auxiliary fuel pump and high-pressure fuel injection
pump, located in engine compartment
In-line, located in RH rear wheel arch

GENERAL DATA
04-31
Brakes
Front disc brakes
Type Pin-slider caliper with ventilated disc, self-adjusting
Disc diameter 262 mm (10.31 in)
Disc thickness:
⇒ New
⇒ Service limit20.8 - 21.00 mm (0.818 - 0.826 in)
18.00 mm (0.708 in)
Disc run-out (maximum) 0.040 mm (0.0016 in), with wheel on
Pad minimum thickness 3.00 mm (0.118 in)
Rear drum brakes
Drum inside diameter 254 mm (10.00 in)
Drum wear limit 255.49 mm (10.059 in), discard drum
Lining minimum thickness 2.00 mm (0.079 in)
Drum ovality limit 0.012 mm (0.0005 in)
Master cylinder
Bore diameter 23.80 mm (0.937 in)
Brake servo
Servo boost ratio 4.5 : 1
Parking brake
Type Mechanically operated via twin cables on rear drum brakes
Anti-lock braking system
Circuit type Diagonal split, dual circuit, 4-sensor ABS
ABS type TEVES MK20 with ABS, Hill Descent Control (HDC), Electronic
Traction Control (ETC) and Electronic Brakeforce Distribution (EBD)