Mitsubishi Galant. Manual — part 746

HOW TO READ CIRCUIT DIAGRAMS

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CIRCUIT DIAGRAMS

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H O W TO R EA D C IR C U IT D IA G R A M S

M1901000100083

The circuit of each system from the fuse (or fusible link) to ground is shown. The power supply is shown at
the top and the ground at the bottom to facilitate understanding of how the current flows.

ACX02361

Indicates power source.

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

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

Indicates splice point numbers.
These numbers are identical to
those described in "Splice Loca-
tions."

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

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

Indicates connector number.
The same number as 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 the circuit mame
to be connected. The arrow
indicatesthe current flow
direction.

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

AB

Indicates shield wire.

Indicates that current
flows upwards.

HOW TO READ CIRCUIT DIAGRAMS

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CIRCUIT DIAGRAMS

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ACX02362AC

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

Indicates representative vehicle
body ground point. (Same
number as that of ground point in
GROUNDING LOCATION).

Indicates harness junction where
wire diameter or color changes.

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

Indicates terminal number.

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

A broken line indicates that these
connectors are the same interm-
ediate connectors.

Indicates a wiring connector which
is inside the equipment and which
is not 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 input/output
to/from control unit
(current flow direction).

Input Output

Input/
output

Indicates current flow downward
or upward as controlled by the
control unit.

HOW TO READ CIRCUIT DIAGRAMS

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CIRCUIT DIAGRAMS

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CONNECTOR/GROUNDING INDICATIONS

ACX02364AB

3

1

8

7

2

6

4

5

HOW TO READ CIRCUIT DIAGRAMS

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CIRCUIT DIAGRAMS

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ITEM

NO.

CONNECTOR/ GROUNDING

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.
For the data link connector, its
contents differ from the previous
description. Refer to "scan tool
operation instruction" in detail.

ACX01251AB

Male terminal

Male connector

ACX01252AB

Male terminal

ACX01253AB

Male connector

ACX01254 AB

Female terminal

Female connector

ACX01255AB

Female terminal

ACX01256 AB

Female connector

ACX01257AB

Device

ACX01253

ACX01258AB

Intermediate connector

ACX01816

Spare cnnector, check connector

AB

ACX01256