Mitsubishi Grandis. Manual — part 407

HOW TO READ WIRING DIAGRAMS

GENERAL <ELECTRICAL>

00E-3

HOW TO READ CIRCUIT DIAGRAMS

M1001006500064

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.

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: Engine and transmission
C: Dash panel
D: Floor

E: Roof

F: Door
G: Tailgate

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: Gray

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.

AE

A-17

A-16

A-15

A-18

A-19

Y

Denotes a section covered by a
corrugated tube.

Front
wiring
harness
(RH)

Denotes harness name.

1

HOW TO READ WIRING DIAGRAMS

GENERAL <ELECTRICAL>

00E-4

AC309560AB

Indicates power source.

Each circuit diagram consists of
block(s). The blocks are divided
by page number.

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 number 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 de-
vice, the same connector are
shown 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.

HOW TO READ WIRING DIAGRAMS

GENERAL <ELECTRICAL>

00E-5

MARKINGS FOR CONNECTOR
EARTHING

M1001007900065

AC208460

IGNITION
SWITCH (IG1)

FUSIBLE
LINK

1

SOLENOID
VALVE

ECU

INSPECTION
CONNECTOR

SENSOR

MOTOR

AB

3

1

8

7

2

6

4

5

HOW TO READ WIRING DIAGRAMS

GENERAL <ELECTRICAL>

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Item

No.

Connector/Earthing

Symbol

Contents

Connector
and terminal
marking

1

The male and female terminals
are indicated as shown. The
connector with male terminal(s)
is called as male connector and
indicated by two connector
contour lines, while the
connector with female
terminal(s) is called as female
connector and indicated by
single connector contour line.

Connector
symbol
marking

2

The symbol indicates the
connector is viewed as shown.
At a device connection, the
connector symbol on the device
side is shown. For an
intermediate connector, the
male connector symbol is
shown. For spare connectors
and check connectors, no
device is connected, and so the
harness-side connector symbol
is shown for these connectors.

ACX01251AE

Male terminal

Male connector

ACX01252AD

Male terminal

ACX01253 AI

Male connector

ACX01254 AD

Female terminal

Female connector

ACX01255AD

Female terminal

ACX01256 AH

Female connector

ACX01257AD

Device

ACX01253

ACX01258AD

Intermediate connector

ACX01816

Spare connector, check connector

AD

ACX01256