A-1 HOW TO READ THE WIRING DIAGRAMS

1 A-1 HOW TO READTHE WIRINGDIAGRAMSCONTENTSCOMPOSITION AND CONTENTS OF TO read TO read CIRCUIT FOR CONNECTOR EARTHING COLOUR TO read THE WIRING DIAGRAMS -Composition and Contents of WIRING DiagramsA-2 COMPOSITION AND CONTENTS OF WIRING DIAGRAMS (1) This manual consists of WIRING harness DIAGRAMS , installation locations of individual parts, circuitsdiagrams and index.(2) In each section, all specifications are listed, including optional specifications. Accordingly, somespecifications may not be applicable for individual contentsWiring harnessconfigurationdiagramsConnector locations and harness WIRING configurations on actual vehicles are partinstallation positionLocations are shown for each point of relays, electronic control units, sensors, solenoids,solenoid valves, diodes, inspection connectors, spare connectors, fusible links, fuses, etc.

2 In thepart s lists, parts are listed in alphabetical diagramsCircuits from power supply to earth are shown completely, classified according to system. Thereis a main division into power circuits, and circuits classified by system. The circuits classified bysystem also include operation and troubleshooting blockThe entire circuit for the junction block is described, because only the part of the junctionblock needed is normally shown in each circuit connectorsThe internal circuits for all joint connectors are described, because only the part neededis shown in each circuit supply circuitsCircuits from the battery to fusible link, dedicated fuses, ignition switch, general purposefuses, classified by systemFor each system, the circuits are shown from fuse to earth.

3 Excluding the power standard operation of each system is briefly described, following the route of hintsThis is a brief explanation of the inspection points that serve as hints when of the circuits controlled by the electronic control unit are omitted. Referto the related publications as components used are listed by connector number and component TO read THE WIRING DIAGRAMS -How to read Configuration DiagramsA-3 HOW TO read CONFIGURATION DIAGRAMSThe WIRING harness DIAGRAMS clearly show the connector locations and harness routings at each siteon actual connector location first alphabetical symbol indicates the location site of the connectorand a number that follows is the unique number.

4 Numbers are assigned toparts in clockwise order on the : A-12 Number specific to connector (serial number)Connector location site symbolA: Engine compartmentB: Engine and transmissionassemblyC: Dash panelDenotes earth earth number is used throughout circuitdiagrams to facilitate search of earth point. Referto SINGLE PART INSTALLATION POSITION -EARTH MOUNTING LOCATIONS for details ofearth the device to which theconnector is to be (2-B)Headlamp (LO: RH)A-40 (1)Horn (LO)A-41 (1)Horn (HI)A-42 (2-B)Windshield washer motorThe number of connector pins and theconnectorcolour(exceptmilkwhite)*ares hown for ease of : (2-B)Connector colour(milk white if no colour is indicated)Number of connector pins*: Typical connector coloursB: BlackY: YellowL: BlueG: GreenR: RedThe markLshows thestandard mounting posi-tion of WIRING the colour of corrugatedtubeorvinyltube.

5 (Ifnotspecified,it is black.)R: RedY: YellowDenotesasectioncoveredbyacorrugate d : BrownV: VioletO: OrangeGR:GrayNone: Milk whiteD: Floor and roofE: DoorF: Luggage compartmentHOW TO read THE WIRING DIAGRAMS -How to read Circuit DiagramsA-4 HOW TO read CIRCUIT DIAGRAMSThe circuit of each system from fuse (or fusible link) to earth is shown. The power supply is shownat the top and the earth at the bottom to facilitate understanding of the current the power supply in the controlunit. If no voltage is displayed, thisindicates SYSTEM power take connector No. The sameNo.

6 As in the WIRING harness diagramis numbers enclosed byframe are indicated with theconnector symbols at the lower partof the numbers not enclosed bya frame indicate components whichare integrated with the harness junction point No. foranother system. It corresponds to thejunction point No. indicated on thedestination system circuit the circuit name to beconnected. The arrow indicates thecurrent flow X at the end of a connector a centralized junction that is shownin the section CENTRALIZED JUNC-TION .Indicatestheoperatingcondi-tions of the engine coolanttemperature switch, the connector in the circuit diagram areindicated in numerical plate in the relay circuit diagram consists ofblock(s).

7 The blocks are divided bypage that the diagram continuesatAwhich belongs to the blockin the same that the current flowsfrom down to up. Bi-directionalarrows indicate that thedirection of current flowchangeswhencommunicationis in TO read THE WIRING DIAGRAMS -How to read Circuit DiagramsA-5 Indicates input/output to/fromcontrol unit(currentflowdirection).InputOutputIn put/outputIn case two or more connectors areconnectedtothesamedevice,markingsindi cating the same connectors areconnected by a broken current flow downward orupward as controlled by the control harness junction where wirediameter or colour intersections atwhich the lead wire are intersections atwhich the lead wires representative vehicle bodyearth point.

8 (Same No. as that of earthpoint in WIRING harness diagram andinstallation locations of individual parts.)Indicates that the terminal is a spareone if the device (sensors in thiscase) is not terminal that the diagram comes fromAwhich belongs to the blockin the same broken line indicates that theseconnectors are the same intermedi-ate a WIRING connector which is insidethe equipment and which is not shown inthe WIRING harness configuration C-15-2 Indicatestheconnectornumbershown in the WIRING harnessconfiguration a connectorwhich is inside theequipment, numberedin order starting from TO read THE WIRING DIAGRAMS -Markings for Connector EarthingA-6 MARKINGS FOR CONNECTOR EARTHING653438271 HOW TO read THE WIRING DIAGRAMS -Markings for Connector terminalmarking1 Male connectorMale terminalThe male and female terminals areindicated as shown.

9 The connectorwith male terminal(s) is called asmale connector and indicated bydouble connector contour linens,while the connector with femaleMaleterminalMale connectorwhiletheconnectorwithfemaleterm inal(s) is called as femaleconnector and indicated by singleconnector contour terminalFemaleterminalFemale connectorConnectorsymbolmarking2 DeviceThe symbol indicates the vehicleconnector as viewed from theillustrated direction. At the connec-tion with a device, the connectorsymbol on the device side isshown, and for an intermediateconnector, a male connector sym-bolisshownForspareconnectorsIntermed iate spare connectorsandcheck connectors, nodevice isconnected, and so the harness-sideconnector symbol is shown forthese connectors.

10 The details forthe diagnosis connector differ fromthe above description. For details,refer to the MUT-II operationinstructions .Spare connector, check TO read THE WIRING DIAGRAMS -Markings for Connector connection typeA connection between a deviceand connector on the harness sideis either by direct insertion in thedevice (direct connection type) orby connection with a harnessconnector on the device sidefurnished (harness connectiontype)Thetwotypesareindicated4 Harness connection typetype).Thetwotypes areindicatedas connectorEarthmarkings6 Body earthEarth is either by body earth,device earth or control unit interiorearth.