Vehicle Segment:
Rugged, off-road capable utility vehicle with a strong heritage.
Competitors 2002:
Jeep Wrangler, Toyota Land Cruiser (earlier models), Nissan Patrol (Y61 generation).
Defender Philosophy:
Built for extreme conditions, durability, and off-road capability over luxury or on-road refinement.
Utility For Owners:
Essential resource for owners who perform their own maintenance, modifications, or troubleshooting of the vehicle's complex electrical systems.
Utility For Professionals:
Valuable tool for independent mechanics and workshops specializing in Land Rover vehicles.
Power Distribution:
Detailed diagrams for power distribution units and circuits for both 300 Tdi and Td5 engine variants.
Earth Distribution:
Comprehensive coverage of vehicle earth points and grounding circuits.
Security Systems:
Anti-theft alarm, central door locking, and engine immobilisation systems diagrams for both engine types.
Comfort And Convenience:
Wiring for windows, heated seats, interior illumination, and clock functionality.
Diagnostics:
Diagrams for the diagnostic socket (OBD-II or similar, depending on regional spec) enabling fault code retrieval.
Engine Management And Fuel:
Detailed wiring for the Td5 engine management system, fuel pump, and charging/starting systems applicable to both 300 Tdi and Td5.
Braking System:
Wiring diagrams for the Anti-Lock Braking System (ABS).
Climate Control:
Comprehensive wiring for air conditioning systems (Td5 and 300 Tdi), heater systems, and heated front/rear screens.
Wipers And Washers:
Front and rear wiper and washer system wiring diagrams.
Lighting:
Extensive coverage of exterior lamps including brake, reverse, head, side, tail, number plate, fog, and direction indicator/hazard warning lamps. Also includes interior lamps and anti-theft alarm lighting.
Instruments And Accessories:
Wiring for the instrument cluster, clock, horn, accessory socket, and cigar lighter.
Audio And Trailer:
Wiring for audio systems and trailer sockets.
Troubleshooting:
Implicitly covered through detailed schematic interpretation, allowing for systematic electrical fault diagnosis.
Component Identification:
Facilitates identification of electrical components and their connections via wiring diagrams.
Installation And Modification:
Provides the foundational knowledge for safely adding or modifying electrical accessories.
Depth:
Highly detailed, providing specific wire colors, connector pinouts, and component locations for accurate electrical troubleshooting and repair.
Format Details:
Portable Document Format (PDF), enabling universal accessibility and selective printing.
Color Quality:
Full Colour, essential for distinguishing wire colors and circuit paths accurately.
Print On Demand:
Yes, user can print only necessary pages, reducing waste and enhancing convenience.
Binding:
N/A (Digital format)
Paper Type:
N/A (Digital format)
Engine Type:
2.5L Turbocharged Direct Injection Diesel
Bore X Stroke:
90.4 mm x 97.0 mm
Compression Ratio:
20.0:1
Power Output:
111 bhp (83 kW) @ 4000 rpm
Torque Output:
265 Nm (195 lb-ft) @ 1800 rpm
Fuel System:
Bosch VE rotary injection pump, direct injection
Engine Type:
2.5L Common Rail Direct Injection Turbo Diesel (Electronic)
Bore X Stroke:
94.0 mm x 90.0 mm
Compression Ratio:
19.3:1
Power Output:
122 bhp (90.5 kW) @ 4200 rpm
Torque Output:
300 Nm (221 lb-ft) @ 1900 rpm
Fuel System:
Lucas (now Delphi) common rail system with electronic control unit (ECU), solenoid-controlled injectors
Gearbox:
5-speed Manual (LT77 or R380 gearbox, depending on exact variant)
Gearbox:
4-speed Automatic (ZF 4HP22 for some models, though less common on 2002 Defender compared to Discovery)
Transfer Case:
2-speed transfer case with permanent four-wheel drive and lockable center differential.
Manual Transmission Fluid:
API GL-4, SAE 75W-90 (e.g., Castrol EPX 80W-90 or similar specification)
Fluid Specifications 300Tdi
Manual Transmission Fluid:
API GL-4, SAE 80W-90 (e.g., Castrol EPX 80W-90 or similar specification)
Fluid Specifications Transfer Case
Transfer Case Fluid:
API GL-4, SAE 75W-90 or 80W-90
Wheelbase Options:
90, 110, 130 inches (approx. 2286 mm, 2794 mm, 3302 mm)
Body Styles:
Station Wagon, Hardtop, Soft Top, Pickup Truck
Curb Weight Approx:
1800 - 2000 kg (4000 - 4400 lbs) depending on configuration
Crash Test Results:
Limited standardized crash testing data available for this era of Defender due to its design intent; focused more on robustness than occupant crash protection compared to modern vehicles.
ABS:
Anti-lock Braking System (ABS) available as an option or standard on certain models/markets, featuring 4-channel electronic control.
Seatbelts:
Three-point seatbelts in the front, lap belts in rear seating positions (standard configuration).
Airbags:
No airbags typically fitted as standard on 2002 models; optional or market dependent.
Audio System:
Basic factory fitted radio/cassette or CD player, often with modest speaker setups. Wiring for aftermarket upgrades is also a common requirement.
ABS:
ABS available, but no advanced driver-assistance systems (ADAS) like adaptive cruise control or lane departure warning.
Connectivity Features:
Limited factory connectivity; typically no Bluetooth or USB ports as standard. Accessory sockets are provided for charging devices.
Diagnostic Port:
On-Board Diagnostics (OBD) port for engine management data retrieval and fault code reading.
Oil Change Interval:
Typically 6,000 miles or 12 months, whichever comes first (consult specific manual for exact recommendations).
Oil Change Interval:
Typically 6,000 miles or 12 months, whichever comes first.
Fluid Specifications Engine Oil Td5
Engine Oil:
API CG-4 or CH-4, ACEA B3/B4, SAE 10W-40 (e.g., Castrol Magnatec Diesel 10W-40 or similar).
Fluid Specifications Engine Oil 300Tdi
Engine Oil:
API CG-4 or CF-4, ACEA B2/B3, SAE 15W-40 (e.g., Castrol RX Super 15W-40 or similar).
Fluid Specifications Coolant
Coolant:
Ethylene glycol based antifreeze, 50% concentration with de-ionized water. Orange/red color for Td5 (OAT - Organic Acid Technology), often blue/green for 300 Tdi (Shorter Life).
Fluid Specifications Brake Fluid
Td5 ECU Issues:
Potential issues with the Engine Control Unit (ECU) and the 'black death' problem due to injector seal failure, leading to fuel contamination of the engine oil.
300Tdi Head Gasket:
While generally robust, the 300 Tdi can be prone to head gasket failure if overheated.
Corrosion:
Defender chassis and body panels are susceptible to rust and corrosion, especially in areas with heavy road salt usage or coastal environments.
Electrical Gremlins:
Older vehicles can develop intermittent electrical faults due to aging wiring, connectors, and components, making a wiring diagram manual invaluable.
Land Rover Legacy:
Land Rover has a long history of producing robust, go-anywhere vehicles since the original Land Rover Series I in 1948.
Defender Lineage:
The Defender is the direct descendant of the original Land Rover, evolving through the Series II, IIA, III, and Ninety/One Ten models before adopting the Defender nameplate in 1983. The 2002 model represents the later years of the classic Defender L663 platform, which saw continuous development but retained its core utilitarian character.
Production Era:
Classic Defender production ran from 1983 (as Ninety/One Ten) to 2016. The 2002 model falls within the period after the introduction of the Td5 engine (1998) and the updated 300 Tdi (1994-2006, though phased out in some markets by Td5).
Manufacturing Base:
Solihull, England, United Kingdom.
