In each section, all specifications are listed, including optional specifications. Accordingly, some specifica-
tions may not be applicable for individual vehicles.

Section

Basic contents

Component
locations

Locations are shown for each point of relays, ECUs, sensors, solenoid valves,
inspection connectors, fusible links, fuses, etc. In the part’s lists, parts are listed in
alphabetical order.

Configuration
diagrams

Connector locations and harness wiring configurations on actual vehicles are
illustrated.

Circuit diagrams

Circuits from power source to earth are shown completely, classified according to
system. There is a main division into power source circuits and circuits classified by
system.

• Junction block

The entire circuit for the junction block is described, because only the part of the
junction block needed is normally shown in each circuit diagram.

• Joint connectors

The internal circuits for all joint connectors are described, because only the part
needed is shown in each circuit diagram.

• Power source circuits

Circuits from the battery to fusible link, fuse, ignition switch, etc are shown.

• Circuits classified by system

For each system, the circuits are shown from fuse to earth, excluding the power
source sections.

HOW TO READ CONFIGURATION
DIAGRAMS

M1001006400227

The wiring harness diagrams clearly show the connector locations and harness routings at each site on
actual vehicles.

AC208446

Denotes connector No.
The same connector No. is used throughout the circuit diagrams to facilitate connector location search.
The first alphabetical symbol indicates the location site of the connector and a number that follows is the unique number.
Numbers are usually assigned to part in clockwise order on the diagram.

Example: A-19

Number specific to connector (serial number)

Connector location site symbol
A: Engine compartment
B: Transmission

C: Instrument panel

D: Floor and roof
E: Door
F: Frame

Denotes earth point.
Same earth number is used throughout circuit
diagrams to facilitate search of earth point.
Refer to GROUP 70 COMPONENT LOCATIONS
- EARTH MOUNTING LOCATIONS
for details of earth points.

Denotes the colour of the corrugated
tube (If not specified, it is black.)
R: Red
Y: Yellow

The number of connector pins and the connector colour
(except milk white)* are shown for ease of retrieval.

Example: (2-B)

Connector colour
(milk white if no colour is indicated)

Number of connector pins

*: Typical connector colours
B: Black

BR: Brown

Y: Yellow

V: Violet

L: Blue

O: Orange

G: Green

GR: Grey

R: Red

None: Milk white

A-15 (2) Fog lamp (RH)
A-16 (2-GR) Horn (LO)
A-17 (2-B) Headlamp (RH)
A-18 (2-B) Windshield washer motor
A-19 (2-GR) Dual pressure switch

Indicates the device to which the
connector is connected.

The mark shows the
standard mounting position
of wiring harness.

A-17

A-16

A-15

A-18

A-19

Denotes a section covered by a
corrugated tube.

Front
wiring
harness
(RH)

Denotes harness name.

HOW TO READ WIRING DIAGRAMS

GENERAL <ELECTRICAL>

00E-3

HOW TO READ WIRING DIAGRAMS

GENERAL <ELECTRICAL>

00E-4

HOW TO READ CIRCUIT DIAGRAMS

M1001006500194

The circuit of each system from the fuse (or fusible link) to earth is shown. The power source is shown at the
top and the earth at the bottom to facilitate understanding of how the current flows. The circuit diagrams show
the state when switches are not operated.

AC502479AB

Indicates power source.

Each circuit diagram consists of
block(s).

Indicates harness junction point
numbers for another system.
The number corresponds to the
junction point number indicated
on another circuit diagram.

Indicates the circuit name to be
connected. The arrow indicates
the current flow direction.

Indicates the power supply in
the control unit. If no voltage is
displayed, this indicates battery
positive voltage.

An "X" at the end of a connector
number indicates that the conn-
ector is connected to a central-
ized junction that is shown in the
section "Centralized Junction."

Indicates the connector symbol.
Connectors in the circuit diagram
are indicated in numerical order.

Indicates connector number.
The same numbers are used in the
wiring harness diagram.
Connector and connector numbers
are shown at the lower part of the
page.
Connector numbers not enclosed
by frame indicate the device incor-
porated into wiring harness.

Indicates that the diagram contin-
ues at which belongs to the
block in the same circuit.

Indicates that terminal is conne-
cted via a plate in the relay box.

Indicates the operating conditions
of the engine coolant switch, etc.

Indicates shield wire.

One-directional arrow indicates
that current flows upwards.

Indicates representative vehicle
body earth point. (Same number
as that of earth point in
EARTHING LOCATION).

Indicates harness junction where
wire diameter or colour changes.

In case two or more connectors
are connected to the same
device, markings indicating the
same connector are connector
by a broken line.

Indicates terminal number.

Indicates that these connectors
are the same intermediate
connectors.

Indicates input/output
to/from control unit
(current flow direction).

Input Output

Input/
output

Indicates that the terminal is a
spare one if the device (sensor
in this case) is not provided.

Bi-directional arrow indicates
that current flows in both
directions due to control by an
ECU.

Indicates a wiring connector which is inside
the equipment and which is not shown in
the wiring harness configuration diagram.

Example C-15-2

Indicates a connector
which is inside the
equipment, numbered
in order starting from 1.

Indicates the connector number shown in
the wiring harness configuration diagram.

Indicates intersections at
which the lead wires are
not connected.

Indicates intersections at
which the lead wires are
connected.

Indicates that the diagram comes
from which belongs to the
block in the same circuit.

AC502479

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