Land Rover Defender V8i Electrical Library Rover Manual
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INTRODUCTION 1.6 DEFENDER V8i ABBREVIATIONS A - Amps ac - Alternating current A/C or Aircon - Air conditioning BBUS - Battery backed up sounder Cav - Cavity Cct - Model or feature applicability Col - Colour dc - Direct current ECU - Electronic control unit ECM - Engine control module EGR - Exhaust gas recirculation EKA - Emergency key access HRW - Heated rear window IACV - Idle air control valve ICE - In-car entertainment LED - Light emitting diode LH - Left hand LHD - Left hand drive Link - Fusible link MFi - Multiport fuel injection RF - Radio frequency RH - Right hand RHD - Right hand drive RWW - Rear wash wipe SFi - Sequential fuel injection TP - Throttle position sensor V - Volts
INTRODUCTION DEFENDER V8i1.7 HOW TO USE THIS DOCUMENT Fuse details Contains information on fuse functions and values and should be used together with the power distribution circuit diagrams to establish which systems share a common power supply and to ensure that correct value fuses are fitted. Earth points and headers joints Shows a plan view of the vehicle including location of all earth points. Supporting photographs and connector detail information appear in the Connector section. Description and Operation Presented in the same order as the circuit diagrams are displayed in the Electrical Circuit Diagram folder, each of the descriptions contains a brief overview of the main system functions and includes operating parameters for sensors and switches and reference to the appropriate wire colours. Always read this section before starting work on a system so that a good understanding of system functionality is obtained. Connector This section is effectively an index of every electrical connector on the vehicle, including header joints and eyelets. A page is dedicated to each connector, with the information presented in a standard format including display of the connector number on each page header to ease reference. Some derivatives within the model range may have connectors which have been allocated identical numbers to those already used, but are located in a different position on the vehicle. Where possible these connectors are displayed on adjacent pages together with an alternative location statement, a qualifying statement and an accompanying photograph. Connector information comprises: ·Connector Number- The assigned number, prefixed C. ·Connector Name- Usually derived from the component to which the connection is made. ·Male/Female- If applicable, identifies the gender of the connector pins (NOT the housing) as Male or Female. Generally, connectors mating directly to a component have Female pins.
INTRODUCTION 1.8 DEFENDER V8i ·Colour- If applicable, the colour of the connector housing is shown. NATURAL is used to describe connectors with a clear/translucent plastic finish. ·Location Statement- Used in conjunction with the photograph to determine the location of the connector. ·Photograph- Shows the location of the subject connector. In most cases, the photograph will indicate the amount of trim removal necessary to reveal the connector. For convenience some photographs identify more than one connector. ·Derivatives- Unless specified otherwise, location statements and photographs relate to all models. ·Face View- An outline of the connector housing, viewed from the front, showing pin numbers (if applicable). ·Pin-out Table- A three column table, detailing the colour and position of each wire in the connector: Cav Col CCT 1 GR ALL 2 B ALL 1.Cav:The connector pin (cavity) number. 2.Col:The colour of wire populating the connector pin. 3.Cct:Identifies the model or feature which uses the wire. ALL means applicable to all vehicles in the range.
INTRODUCTION DEFENDER V8i1.9 WIRE COLOUR CODES The following list contains the wire colour codes used on the vehicle harnesses and is intended to give an indication of the function or feature for which a particular colour of wire is normally used. These guidelines do not always apply to the wiring between components and the main harness. Code Colour Function BBlack Earth wire from a component to an earth tag. GGreen Ignition fused supply from passenger compartment fuse box: clock, instrument, indicators, electric mirrors KPink Fused supply: central door locking LGLight GreenIgnition auxiliary fused supply from passenger compartment fuse box: reverse lamps, brake lamps NBrown Battery supply - to ignition switch from fusible link 3 and 5 OOrange Fused supply: central locking PPurple Fused permanent supply - to interior lamps, radio cassette, clock, anti-theft alarm, electric aerial RRed Fused supply: sidelamps SSlate (grey)Fused supply: electric windows UBlue Fused supply: headlamps, cooling fans WWhite Ignition switched supply to passenger compartment fuse box YYellow Ignition switched supply to passenger compartment fuse box
INTRODUCTION 1.10 DEFENDER V8i Fault diagnosis When diagnosing an electrical fault follow the steps below: 1.Read the circuit description and study the circuit diagram appropriate to the reported fault to ensure a good understanding of circuit operation. 2.Study the power distribution, fuse details and earth distribution diagrams and identify other circuits which share fuses and/or earth points. Check whether these circuits operate correctly. 3.Using the photographs contained in the Connector section, locate a point on the circuit (approximately half way between supply and earth) which is easily accessible. 4.Check that the pin out details of the connector are correct and that the correct signals exist at the correct terminals. 5.Using the marker pen supplied (or other suitable non-permanent marker pen), mark the parts of the circuit you have verified. 6.Continue to the next point on the circuit which is easiest to access and repeat the above. 7.Continue this approach until a fault is found, rectify the fault and then verify that the circuit operates correctly.
FUSE DETAILS DEFENDER V8i2.1 INTRODUCTION The following tables give details of power supply through the engine and passenger compartment fuse boxes. NOTE: Some fuse numbers may be followed by a letter, either an E or a P. E denotes a fuse located in the engine compartment fuse box, and P a fuse located in the passenger compartment fuse box. Engine Compartment Fuse Box
FUSE DETAILS 2.2 DEFENDER V8i Engine Compartment Fuse Box - Fusible Links Link Rating Wire ColourFunction 1 100 Amp N Fuse 1 (E), Fuse 2 (E), Fuse 3 (E), Link 2 & Generator. 2 60 Amp N Fuse 13 (P), Fuse 14 (P), Fuse 15 (P), & Fuse 16 (P). 3 60 Amp N Not used. 4 30 Amp N Not used. 5 60 Amp N Ignition switch, Starter relay, Fuse 2 (P), & Fuse 3 (P). 6 30 Amp N Lighting switch. Engine Compartment Fuse Box - Fuses Fuse Rating Wire ColourFunction 1 30 Amp N Trailer pick-up. 2 20 Amp N Indicator switch. 3 30 Amp N Heater rear window relay. 4 20 Amp N Diagnostic socket. 5 30 Amp N Hazard switch. 6 15 Amp N Relay module (Fuel Pump). 7 20 Amp N Relay module (Fuel injectors).
FUSE DETAILS DEFENDER V8i2.3 Passenger Compartment Fuse Box Fuse Rating Wire ColourFunction 1 15 Amp WG Heated rear window switch, Instrument pack illumination, Headlamp relay, & Engine immobilisation warning lamp. 2 10 Amp P Radio / Cassette player, Alarm ECU, & Front interior lamp. 3 15 Amp P BBUS, Alarm ECU, Alarm LED, & Alarm relay. 4 15 Amp PG Heater blower motor. 5 7.5 Amp WK Radio / cassette player. 6 10 Amp UP Fog guard lamp ECU. 7 7.5 Amp UB RH Headlamp dipped beam. 8 7.5 Amp UK LH Headlamp dipped beam. 9 7.5 Amp UO RH Headlamp main beam. 10 7.5 Amp US LH Headlamp main beam.
FUSE DETAILS 2.4 DEFENDER V8i Fuse Rating Wire ColourFunction 11 5 Amp RB Trailer pick-up, LH side lamp, & Radio / cassette player. 12 5 Amp RO Headlamp levelling switch, Coolant temperature gauge, Speedometer, Tachometer, Heater control illumination, Fuel guage, Instrument pack, Cigar lighter, Trailer pick-up, RH Headlamp levelling motor, LH Headlamp levelling motor, RH Side lamp, & Auto selector illumination. 13 20 Amp Not used 14 20 Amp Not used 15 20 Amp NS Air Conditioning blower relay. 16 15 Amp NW Condenser fan relay, & compressor clutch relay. 17 15 Amp G Rear wiper motor, Oil temperature warning lamp, BBUS, Alarm ECU, Rear wash/wipe switch, Hazard warning switch, Compressor clutch relay, and Blower relay. 18 15 Amp G Speed transducer, Brake pedal switch, Starter inhibitor switch, Front wash/wipe switch, Windscreen wiper motor, & Windscreen wiper motor relay. 19 20 Amp GO Cigar lighter. 20 20 Amp WG RH heated oxygen sensor (HO2S), LH HO2S, Ignition coils, Engine Control Module (ECM), & Relay module.
EARTH POINTS AND HEADER JOINTS DEFENDER V8i3.1 Earth Points The following illustration indicates the general position of each Earth Point on the vehicle. Connector No Title Location C558 Earth eyelet Adjacent rear screen wiper motor. C560 Earth eyelet Centre of engine compartment bulkhead. C822 Earth eyelet Side of gearbox. Earth Headers Connector No Title Location C550 Earth header Centre of engine compartment bulkhead.