WIRING DIAGRAM SECTION.pdf

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6-3
[D1A0]
1. General Description
WIRING DIAGRAM
¼
The number of poles or pins, presence of a lock,
and pin number of each terminal are indicated in
the sketch of each connector. In the sketch, the
highest pole number refers to the number of poles
which the connector has. For example, the sketch
of the connector shown in figure indicates the con-
nector has 9 poles.
1. General Description
A: WIRING DIAGRAM
The wiring diagram of each system is illustrated so
that you can understand the path through which
the electric current flows from the battery.
Sketches and codes are used in the diagrams.
They should read as follows:
¼
Each connector and its terminal position are
indicated by a sketch of the connector in a discon-
nected state which is viewed from the front.
G6M0193
Connector used in vehicle
Sketch
Connector shown in wiring diagram
Symbol
Number of poles
Numbered in order from upper
right to lower left.
G6M0194
G6M0196
Numbered in order from upper
left to lower right.
G6M0198
G6M0195
G6M0197
2
WIRING DIAGRAM
¼
When one set of connectors is viewed from the
front side, the pole numbers of one connector are
symmetrical to those of the other. When these two
connectors are connected as a unit, the poles
which have the same number are joined.
[D1A0]
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1. General Description
¼
The following color codes are used to indicate
the colors of the wires used.
Color code
L
B
Y
G
R
W
Br
Lg
Gr
P
Or
Lb
V
SA
SB
Color
Blue
Black
Yellow
Green
Red
White
Brown
Light green
Gray
Pink
Orange
Light Blue
Violet
Sealed (Inner)
Sealed (Outer)
G6M0199
¼
Electrical wiring harness:
The connectors are numbered along with the num-
ber of poles, external colors, and mating connec-
tions in the accompanying list.
¼
The sketch of each connector in the wiring dia-
gram usually shows the (A) side of the connector.
The relationship between the wire color, terminal
number and connector is described in figure.
NOTE:
A wire which runs in one direction from a connec-
tor terminal sometimes may have a different color
from that which runs in the other direction from that
terminal.
H6M0509A
¼
In wiring diagram, connectors which have no ter-
minal number refer to one-pole types. Sketches of
these connectors are omitted intentionally.
G6M0201
G6M0216
3
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[D1A0]
1. General Description
WIRING DIAGRAM
¼
The wire color code, which consists of two let-
ters (or three letters including Br or Lg), indicates
the standard color (base color of the wire covering)
by its first letter and the stripe marking by its sec-
ond letter.
No. of
Nominal sec-
strands/
tional area
strand diam-
mm
2
eter
0.3
0.5
0.75
0.85
1.25
2
3
5
8
7/0.26
7/0.32
30/0.18
11/0.32
16/0.32
26/0.32
41/0.32
65/0.32
50/0.45
Outside
diameter of
finished wir-
ing
mm
1.8
2.2 (or 2.0)
2.6 (or 2.4)
2.4 (or 2.2)
2.7 (or 2.5)
3.1 (or 2.9)
3.8 (or 3.6)
4.6 (or 4.4)
5.5
Allowable
current
Amps/40°C
7
12
16
16
21
28
38
51
67
G6M0202
¼
The table lists the nominal sectional areas and
allowable currents of the wires.
CAUTION:
¼
When replacing or repairing a wire, be sure
to use the same size and type of the wire which
was originally used.
NOTE:
¼
The allowable current in the table indicates the
tolerable amperage of each wire at an ambient
temperature of 40°C (104°F).
¼
The allowable current changes with ambient
temperature. Also, it changes if a bundle of more
than two wires is used.
¼
Each unit is directly grounded to the body or
indirectly grounds through a harness ground termi-
nal. Different symbols are used in the wiring dia-
gram to identify the two grounding systems.
G6M0203
¼
The ground points shown in the wiring diagram
refer to the following:
NOTE:
All wiring harnesses are provided with a ground
point which should be securely connected.
B6M0747A
4
WIRING DIAGRAM
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6-3
1. General Description
¼
Relays are classified as normally-open or normally-closed. The normally-closed relay has one or more
contacts.
The wiring diagram shows the relay mode when the energizing circuit is OFF.
B6M0748
5
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[D2A1]
2. Basic Diagnostics Procedure
WIRING DIAGRAM
¼
Each connector number shown in the wiring dia-
gram corresponds to that in the wiring harness.
The location of each connector in the actual
vehicle is determined by reading the first character
of the connector (for example, a “F” for F8, “i” for
i16, etc.) and the type of wiring harness.
The first character of each connector number
refers to the area or system of the vehicle.
Symbol
F
B
E
T
D
i
Wiring harness and cord
Front wiring harness
Bulkhead wiring harness
Engine wiring harness
Transmission cord, Rear oxygen sensor
cord
Door cord LH & RH, Rear door cord LH &
RH
Instrument panel wiring harness
Rear wiring harness, Rear defogger cord
(Ground)
Fuel tank cord,
Roof cord,
Rear gate cord,
Rear gate lock adapter cord
2. Basic Diagnostics Procedure
A: BASIC PROCEDURE
1. GENERAL
The most important purpose of diagnostics is to
determine which part is malfunctioning quickly, to
save time and labor.
2. IDENTIFICATION OF TROUBLE
SYMPTOM
Determine what the problem is based on the symp-
tom.
3. PROBABLE CAUSE OF TROUBLE
Look at the wiring diagram and check the system’s
circuit. Then check the switch, relay, fuse, ground,
etc.
4. LOCATION AND REPAIR OF TROUBLE
1) Using the diagnostics narrow down the causes.
2) If necessary, use a voltmeter, ohmmeter, etc.
3) Before replacing certain component parts
(switch, relay, etc.), check the power supply,
ground, for open wiring harness, poor connectors,
etc. If no problems are encountered, check the
component parts.
R
5. CONFIRMATION OF SYSTEM
OPERATION
After repairing, ensure that the system operates
properly.
B: INSPECTION
1. VOLTAGE MEASUREMENT
1) Using a voltmeter, connect the negative lead to
a good ground point or negative battery terminal
and the positive lead to the connector or compo-
nent terminal.
2) Contact the positive probe of the voltmeter on
connector (A).
The voltmeter will indicate a voltage.
3) Shift the positive probe to connector (B). The
voltmeter will indicate no voltage.
G6M0205
H6M0510A
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