Discovery Series II 2003MY Electrical Circuit Diagrams .

LRL 0553 NDECD A4 ENG/ENX COL22/2/0212:18 pmPage 3DiscoveryElectrical Circuit DiagramsLRL 0553NAS

Electrical Circuit DiagramsPublication Part No. LRL 0553NAS(3)Published by Land Rover 2002 Land RoverAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, electronic, mechanical, recording or other means without prior written permission from Land Rover.

COLOUR CODESDRAADKLEURCODESCODICI COLORI DEI CAVICODECOLOURCODES DES COULEURS DES FILSCODIGOS DE COLORES DE LOS CABLESCODEKLEURCODECOULEURCODEFARBECODICE COLOREKABELFARBCODESCÓDIGOS DAS CORES DOS FIOSCODIGO COLORCÓDIGO EKROSAKROSAKROSAKROSALGLIGHT GREENLGLICHTGROENLGVERT CLAIRLGHELLGRÜNLGVERDE CHIAROLGVERDE CLAROLGVERDE XORREDRROODRROUGERROTRROSSORROJORVERMELHOSSLATE (grey)SLEIGRIJSSGRISSGRAUSARDESIA (grigio)SPIZARRO LBYGIALLOYAMARILLOYAMARELO

CONTENTS1 POWER DISTRIBUTION .6Engine Compartment Fuse Box . 6Passenger Compartment Fuse Box . 1031 CRUISE CONTROL .6044 INTERIOR LAMPS . 10432 ELECTRONIC AUTOMATIC TRANSMISSION .6246 INTERIOR ILLUMINATION . 10647 INSTRUMENTS . 1102 EARTH DISTRIBUTION .1433 ACTIVE CORNERING ENHANCEMENT (ACE).643 ANTI-THEFT ALARM .2034 SELF LEVELING AND ANTI-LOCKBRAKING SYSTEM (SLABS).6635 ANTI-LOCK BRAKING SYSTEM (ABS) .7036 SUPPLEMENTARY RESTRAINT SYSTEM(SRS).7438 AIR CONDITIONING .7639 HEATER .8040 HEATED FRONT SCREEN.8240 HEATED REAR WINDOW .844 CENTRAL DOOR LOCKING .245 WINDOWS .28Front . 28Rear . 306 SUNROOF .327 DOOR MIRRORS .34Folding . 368 SEATS .38Heated . 4210 DIAGNOSTIC SOCKET .4411 BODY CONTROL UNIT .4615 CHARGING AND STARTING .50V8 . 5020 ENGINE MANAGEMENT SYSTEM.52V8 . 5222 COOLING FANS .5625 SHIFT INTERLOCK .5848 CLOCK. 11442 WIPERS AND WASHERS .86Front . 86Rear . 8843 EXTERIOR LAMPS .90Head, side and tail lamps . 90Headlamp levelling . 92Lights on alarm . 94Direction indicator lamps\hazard warning . 96Brake and reverse lamps . 98Fog lamps - Front . 100Fog lamps - Rear . 10248 HORN (S) . 11649 ACCESSORY SOCKET. 11849 CIGAR LIGHTER . 12050 AUDIO SYSTEMS . 122Base and mid line . 122High Line . 12455 NAVIGATION SYSTEMS . 12860 HEADER JOINTS. 13265 SPLICES AND CENTRE TAPS . 14275 PARK DISTANCE CONTROL (PDC) . 14880 TRAILER SOCKET . 1503

HOW TO USE THE CIRCUIT DIAGRAMSHOW TO USE THE CIRCUIT DIAGRAMSAll of the information in this publication is intended for use inconjunction with the Electrical Library, which can be found onRAVE.The circuit diagrams are presented with Power and Earth distributionfirst, followed by individual circuits for each electrical system on thevehicle.Power DistributionThe Power Distribution diagram shows the connections from thebattery to the engine, passenger, and where applicable, rear fuse box.It also shows the internal circuitry of the fuse boxes.A35 (P) ROOFFUSE BOX-PASSENGERCOMPARTMENT (P101)LAMP-INTERIOR-REAR (B104)C0356-1P,0.5D,940A35P,0.5D,1555Line TypesThe splice information shown on individual system circuits is notcomplete. Always refer to the splices circuit for completeinformation on each splice.Wire length (Power & Earth Distributtion only)The length of the wire is shown in millimetres. This can be used tolocate internal harness splices; look for the shortest wire between thejoint and connector. For example, it can be seen that C0580-7 is1555mm from joint A35.C0947-24RY,0.5C0947-5B,MACM86 5967This denotes the wires are a twisted pair.ConnectorsC0580-7LAMP-INTERIORFRONT (B100)P,0.5D,770Splices and centre tapsHeader and splice tables present the joint(s) and wiring up to the firstcomponent. Splices are identified by a number with an alphabeticalprefix and the wire colour.HEADER 0292 (K109)C0292-2DCU-AIRBAG (D171)K,0.5D,1430C0256-54SWITCH-WINDOW-CONSOLE-RH (S144)C0263-4C0355-3M86 5963The fuse box details are followed by independent functionally specificcircuits and then a splices and centre taps section outlining the way inwhich internal harness splices and centre taps distribute power in theharnesses. This information should be used during diagnosis ofelectrical faults to check for symptoms in associated circuits andnarrow down the search area.Earth DistributionThe earth distribution section comprises a number of Headers andSplices circuits. These are used in a similar manner to those in PowerDistribution; to narrow the search area by checking for fault symptomsin associated circuits.WR,2.0AECU-ELECTRONIC AUTOMATICTRANSMISSION AL CONTROL UNIT (CCU) (D170)C0292-3K,0.5D,1295C0429-14M86 5964Header joints are identified by their corresponding connector numberwith a numbered suffix to indicate the pin-out detail of the wire, i.e.C0292-1 identifies connector 292, pin number 1. Wire insulationcolour is identified in the normal way. Where wires have apredominant colour with a secondary colour tracer, the main colour isidentified first, i.e. LGS - Light Green with a Slate tracer.M86 5968These page break symbols indicate the circuit continues on laterpages.The cup and ball symbol indicates the male and female halves ofconnector.A. Plug on lead (Flylead) wired directly to the component.B. Connector plugs directly into component.4

HOW TO USE THE CIRCUIT DIAGRAMSComponentsEarth pointsFuses and DiodesECU-WINDOW LIFT (D118)C0341-5C1971-1B,2.0PUMP-FUEL (M151)WP,2.0C0205-2C0205-1B,2.0HEADER-EARTH0550 (K108)8.5 AMPB,1.5DC0550-3M86 5965M86 5966The name or description of the component is shown. A dotted outlineindicates that the component is not shown in its entirety.Earth points are identified with an eyelet symbol and a connectornumber, except where components are grounded through theirfixings, when only the eyelet is shown.Fusible links (A) and current rated fuses (B) are identified as shown.The direction of the arrow in a Diode symbol (C) indicates the directionof current flow. The Zener diode (D) - prevents current flow until aprecise voltage is reached.5

1POWER DISTRIBUTIONEngine Compartment Fuse BoxPOWER DISTRIBUTIONEngine Compartment Fuse BoxFUSE BOX-ENGINE COMPARTMENT (P108)RELAY-FRONT FOGLAMP 0C0663-4HEADER0285 (K109)FUSE 387A3015 AMP8785BODY CONTROLUNIT (BCU) (D162)86C0578-7RELAY-POWERWASH (R134)FUSE 4LGR,1.5D,3840C0828-1PUMP-POWERWASH (M156)87A3020 AMPC0573-178785LG,0.5D,950C0662-12BODY CONTROLUNIT (BCU) (D162)86FUSE 7C0578-3PS,3.0,3250C0247-1ELEMENT-FRONTSCREEN-LH (H114)40 AMPRELAY-HEATED FRONTSCREEN (R208)FUSE 8C0578-1PK,3.0,840C0246-240 581-287A308785ELEMENT-FRONTSCREEN-RH (H113)BODY CONTROLUNIT (BCU) (D162)86LINK 4FUSE BOX-PASSENGERCOMPARTMENT (P101)100 AMPC0577-1RELAY-COMPRESSOR CLUTCH-AIR CONDITIONING (A/C) (R181)NOT USED 6-2BS,0.5D,665(TD5)C0658-29DIODE (G126)FUSE 6C0570-787A3010 AMP87DIODE (G126)8586ENGINE CONTROL MODULE(ECM) (D131)C0577-2(V8)BS,0.5D,745C0637-29ENGINE CONTROL MODULE(ECM) (D131)C0570-6NOT USED (V101)C0576-3NW,3.0,2425C0583-5FUSE BOX-PASSENGERCOMPARTMENT (P101)LINK 5C0576-4NP,3.0,367550 AMPC0578-5OS,2.5D,2405LINK D,1430C0253-5 SEAT-RH (R210)FUSE BOX-PASSENGERCOMPARTMENT (P101)50 AMPC0255-5 C0751-5NP,3.0,685C0975-30RELAY-POWERSEAT-LH (R209)ALTERNATOR/GENERATOR (M100)(TD5)N,30.0,550C0034-1MOTOR-COOLINGFAN-1 (M102)RELAY-COOLINGFAN (R117)FUSE 658-4ENGINE CONTROLMODULE (ECM) (D131)3040 .5D,2375(V8)C0067-28 C0229-28GO,0.5D,695C0793-9C0636-31ECU-AIR TEMPERATURECONTROL (ATC) (D160)ENGINE CONTROLMODULE (ECM) (D131)VWR102160-A-01Discovery Series II (LHD)6

1POWER DISTRIBUTIONEngine Compartment Fuse BoxEngine Compartment Fuse BoxFUSE BOX-ENGINE COMPARTMENT (P108)B1A1C1RELAY-AUXILIARYCIRCUITS 0581-3LINK 787AFUSE BOX-PASSENGERCOMPARTMENT (P101)3030 AMPEARTH(E107)87C0573-16B,0.5D,1095C0286-7LINK 1C0573-15LG,0.5D,2345C0588-7150 AMPC0578-6PG,2.0,2345C0583-4LINK ERY C0632-1(TD5)12 VOLTS86HEADER0286 (K109)FUSE BOX-PASSENGERCOMPARTMENT (P101)C0631-1(V8)50 AMPSTARTERMOTOR (M101)C1547-1LINK 8N,40.0,133050 AMPC0823-1RELAY-ACTIVE CORNERINGENHANCEMENT (ACE) (R215)N,40.0,109087A30FUSE 158785ECU-ACTIVE CORNERINGENHANCEMENT (ACE) (D191)8615 AMPC1704-1 C1709-1PN,1.5D,330C0926-1HEATER-FUELBURNING (H115)C0574-5FUSE 9NOT USED (V101)30 AMPC0575-2A306NR,4.5,690FUSE 1130 AMPRELAY-ABS RETURNPUMP TURNABS (M152)ECU-SELF-LEVELLING/ABS (SLABS) (D163)LINK 1187A3030 AMP8785SWITCH-LIGHTING (S100)86C0041-3LINK 10SWITCH-SIDE(SXXX) 1C0041-4R,2.0,1095A2340 AMPLINK 13C0574-3NG,2.0,239030 AMPC0575-5NP,3.0,2295SWITCH-DIP(S101) 12C0041-6FUSE 86-9BODY CONTROL UNIT(BCU) (D162)D1E1F1BSWITCH-HEADLAMPFLASH (S108)110 AMP30 AMPUR,1.5D,1155SWITCH-PASSING(SXXX)FUSE BOX-PASSENGERCOMPARTMENT (P101)FUSE L INJECTORNO. 7 (T178)FUEL INJECTORNO. 8 (T179)ENGINE CONTROLMODULE (ECM) (D131)G1VWR102160-A-02Discovery Series II (LHD)7

1POWER DISTRIBUTIONEngine Compartment Fuse BoxEngine Compartment Fuse BoxFUSE BOX-ENGINE COMPARTMENT (P108)D1NB,0.5D,985E1F1G1FUSE 215 AMP87ASWITCH-INERTIA (S206)C0123-1(TD5)A60NK,0.5,790(PETROL 4 OXY)A42NK,0.5,100(PETROL 2 OXY)A40C0577-3RELAYMAIN -14 C0203-14NK,1.0,1405NK,0.5D,600C0448-3 C0162-3NK,0.5H,2015(V8/NON LEVS 2)VENT-EVAPCANISTER (M162)ENGINE CONTROLMODULE (ECM) (D131)ENGINE CONTROLMODULE (ECM) (D131)SENSOR-MASS AIRFLOW (MAF) (T115)A110C0605-4FUSE BOX-PASSENGERCOMPARTMENT (P101)C0573-3(TD5)C0629-1(LEVS 2 ONLY)NK,1.0,530SOLENOID VALVEBOOST CONTROL (N146)A421RELAY-STARTER(R102)LINK 8-5FUSE 14C0575-4PN,1.5D,2250C0582-715 AMPC0570-8PY,1.0D,2325C0634-7FUSE 12C0575-3PY,1.0D,3120C0193-2687A30C0662-5BODY CONTROLUNIT (BCU) (D162)BO,0.5D,950C0573-730 AMP878685C0601-1LINK 2FUSE BOX-PASSENGERCOMPARTMENT (P101)ENGINE CONTROLMODULE (ECM) (D131)ECU-ELECTRONICAUTOMATICTRANSMISSION (D123)20 AMP(NAS ONLY)STARTERMOTOR (M101)YB,3.0,1220(NAS ONLY)C0879-2PUMP-AIRINJECTION (M207)RELAY-AIR INJECTIONPUMP (R223)87A3050 AMP8785(TD5)LINK 2C0570-3BO,0.5D,2375(V8)C0636-16ENGINE CONTROLMODULE (ECM) (D131)86RELAY-GLOWPLUG 78-1B,2.5,305C0479-1GLOW PLUG (T171)87A30100 AMP8785ENGINE CONTROLMODULE (ECM) (D131)86GLOW PLUG (T171)GLOW PLUG (T171)C0577-8FUSE 16PG,0.75D,1395C0004-2HORN-RH (L103)RELAY-HORN (R133)87AGLOW PLUG (T171)C0577-11PG,0.75D,3965C0003-2HORN-LH (L102)3010 AMP87C0577-1285PO,0.5D,840C0291-11HEADER0291 (K109)86RELAY-SLABS (R216)LINK 76-1 C0390-1C0780-1COMPRESSOR-SELFLEVELLING SUSPENSION(SLS) (M160)87A3030 AMP8785C0655-686RELAY-FUELPUMP (R103)C0578-4WP,3.0,460C0376-2 C0390-2ECU-SELF-LEVELLING/ABS (SLABS) (D163)WP,3.0,3925A4WP,3.0,800C0114-1FUSE 1087A3030 AMPUP,0.5D,530(V8)UP,0.5D,570(TD5)C0449-10 Discovery Series II (LHD)UNIT-FUELTANK (D179)ENGINE CONTROLMODULE (ECM) (D131)8786C0658-5ENGINE CONTROLMODULE (ECM) (D131)8

1POWER DISTRIBUTIONDiscovery Series II (LHD)Engine Compartment Fuse Box9

1POWER DISTRIBUTIONPassenger Compartment Fuse BoxPOWER DISTRIBUTIONPassenger Compartment Fuse BoxY,1.5D,100C0905-3 C0020-3RY,1.5D,4180C0905-2 C0020-2RY,1.5D,430C0295-7C1481-8 C1482-8C0499-2U,1.0,1440DIODE (G126)TRAILERPICK-UP (P124)R,1.5D,100MOTOR-DOOR LOCKFRONT-RH (M117)FUSE BOX-PASSENGER COMPARTMENT (P101)C0905-1 C0020-1RY,0.5D,915C0590-12C0102-8 C0484-8RY,1.5D,835C0588-3C0480-9 64-5SWITCH-FOG GUARDLAMP-REAR R GEARBOX (N121)HEADER0295 (K109)MOTOR-WIPERREAR SCREEN INDSCREEN OR C0292-8C0587-11 KS,1.0D,410C0292-1C0588-12 LGP,0.5D,1670C0116-2C0678-10 C0728-10C0460-5 R0292 (K109)DIODE (G126)C0520-1UNIT-SOUNDERALARM (D110)1E3 OHMSC0587-12RESISTOR 21E3 OHMSA19A167 33-6 0586-12NS,1.5D,2405C0605-4IDM (D176)C0582-4101213112102MIRROR-DOOR-DRIVER SIDE (M168)C0319-2A77 RU,0.5,185C0588-15MOTOR-WIPERWINDSCREEN (M105)HEATER ELEMENTREAR SCREEN (H100)C0480-18 C0485-18RU,0.5,58506NP,1.5D,545HEADER0289 (K109)HEADER0293 (K109)87A3087288586MIRROR-DOOR-PASSENGER SIDE (M169)C0319-2NP,1.5,1000C0733-6 H0551 (K108)87A8785078687A308724FUSE BOX-ENGINECOMPARTMENT (P108)85860317091405 310815 AMPC0585-2SELECTOR-AUTOMATICTRANSMISSION 878687A8786FUSE 8FUSE 5U,2.0,231004INSTRUMENTPACK (J100)1830 08530C0584-5LH IND 4RH IND (MINI)RU,1.5D,620FUSE BOX-ENGINE COMPARTMENT (P108)C0578-5223385FUSE BOX-PASSENGER COMPARTMENT (P101)C0575-41687AHEADER 0287 (K109)C0587-16271585ECU-SELF-LEVELLING/ABS (SLABS) (D163)C0506-12FUSE 410 AMPH1I1J1K1 L1M1N1O1P1Q1R1S1T1VWR102160-A-04Discovery Series II (LHD)10