Page 1897 of 2248

3. Working Precautions
1. PRECAUTIONS WHEN WORKING WITH THE
PARTS MOUNTED ON THE VEHICLE
1) When working under a vehicle which is jacked-up,
always be sure to use safety stands.
2) The parking brake must always be applied during work-
ing. Also, in automatic transmission vehicles, keep the
select lever set to the P (Parking) range.
3) Be sure the workshop is properly ventilated when run-
ning the engine. Further, be careful not to touch the belt or
fan while the engine is operating.
4) Be careful not to touch hot metal parts, especially the
radiator and exhaust system immediately after the engine
has been shut off.
2. PRECAUTIONS IN TROUBLE DIAGNOSIS AND
REPAIR OF ELECTRIC PARTS
1) The battery cable must be disconnected from the bat-
tery’s ( ) terminal, and the ignition switch must be set to the
OFF position, unless otherwise required by the diagnos-
tics.
2) Securely fasten the wiring harness with clamps and
slips so that the harness does not interfere with the body
end parts or edges and bolts or screws.
3) When installing parts, be careful not to catch them on
the wiring harness.
G6M0212
4) When disconnecting a connector, do not pull the wires,
but pull while holding the connector body.
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3. Working Precautions
Page 1898 of 2248
G6M0213
5) Some connectors are provided with a lock. One type of
such a connector is disconnected by pushing the lock, and
the other, by moving the lock up. In either type the lock
shape must be identified before attempting to disconnect
the connector.
To connect, insert the connector until it snaps and confirm
that it is tightly connected.
G6M0214
6) When checking continuity between connector terminals,
or measuring voltage across the terminal and ground,
always contact tester probe(s) on terminals from the wiring
connection side. If the probe is too thick to gain access to
the terminal, use“mini”test leads.
To check water-proof connectors (which are not accessible
from the wiring side), contact test probes on the terminal
side being careful not to bend or damage the terminals.
7) Sensors, relays, electrical unit, etc., are sensitive to
strong impacts.
Handle them with care so that they are not dropped or
mishandled.
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3. Working Precautions
Page 1899 of 2248
4. How to Use Wiring Diagram
B6M0213A
A: RELAY
A symbol used to indicate a relay.
B: CONNECTOR-1
The sketch of the connector indicates the one-
pole types.
C: WIRING CONNECTION
Some wiring diagrams are indicated in foldouts
for convenience. Wiring destinations are indi-
cated where necessary by corresponding sym-
bols (as when two pages are needed for clear
indication).
D: FUSE No. & RATING
The“FUSE No. & RATING”corresponds that
used in the fuse box (main fuse box, and joint
box).
E: CONNECTOR-2
1. Each connector is indicated by a symbol.
2. Each terminal number is indicated in the cor-
responding wiring diagram in an abbreviated
form.
3. For example, terminal number“C2”refers to
No. 2 terminal of connector (C:F41) shown in
the connector sketch.
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4. How to Use Wiring Diagram
Page 1900 of 2248

F: CONNECTOR SKETCH
1. Each connector sketch clearly identifies the
shape and color of a connector as well as
terminal locations. Non-colored connectors
are indicated in natural color.
2. When more than two types of connector
number are indicated in a connector sketch,
it means that the same type connectors are
used.
G: GROUND
Each grounding point can be located easily by
referring to the corresponding wiring harness.
H: DIODE
A symbol is used to indicate a diode.
I: WIRE TRACING ON EXTENDED
WIRING DIAGRAMS
For a wiring diagram extending over at least two
pages, a symbol (consisting of the same charac-
ters with arrows), as shown below, facilitates
wire tracing from one page to the next.
A)A, B)B
J: SYMBOLS OF WIRE CONNECTION
AND CROSSING
Symbol Refers to wires which are
connected and branched
at the“dot”point.
Symbol Refers to wires which are
crossed but not con-
nected.
K: POWER SUPPLY ROUTING
A symbol is used to indicate the power supply in
each wiring diagram.
“MB-5”,“MB-6”, etc., which are used as power
supply symbols throughout the text, correspond
with those shown in the POWER SUPPLY
ROUTING in the wiring diagram.
Accordingly, using the POWER SUPPLY ROUT-
ING and wiring diagrams permits service per-
sonnel to understand the entire electrical
arrangement of a system.
L: S.M.J.
A symbol is used to indicate the terminal
arrangement of the super multiple junction. The
S.M.J. is not shown in respective wiring dia-
grams but is indicated on the next page.
SYMBOLS AND ABBREVIATIONS
A number of symbols and abbreviations are used
in each wiring diagram to easily identify parts or
circuits.
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4. How to Use Wiring Diagram
Page 1901 of 2248
5. How to Use Super Multiple Junction
(S.M.J.)
The“S.M.J.”indicated in wiring diagrams is shown in a
simplified form.
TERMINAL ARRANGEMENT
LHD model
B6M0474
RHD model
B6M0524
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5. How to Use Super Multiple Junction (S.M.J.)
Page 1902 of 2248
INSTALLATION
B6-240
Tightening torque:
4.4 — 7.4 N⋅m (45 — 75 kg-cm, 39 — 65 in-lb)
NOTE:
Align the cutout portion of one connector with that of other before tightening the connecting bolt.
Do not tighten the bolt excessively since this may deform the connectors.
EXPLANATION OF S.M.J. SHOWN IN THE WIRING DIAGRAM
B6M0475
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5. How to Use Super Multiple Junction (S.M.J.)
Page 1903 of 2248
ABBREVIATION LIST
Abbr. Full name
A.B.S. Antilock Brake System
ACC Accessory
A/C Air Conditioning
AD Auto Down
AT Automatic Transmission
AU Auto Up
+B Battery
DN Down
DRL Daytime Running Light
E Ground
F/B Fuse & Joint Box
FL1.5 Fusible link 1.5 mm
2
IG Ignition
Illumi. Illumination
Abbr. Full name
LH Left Hand
Lo Low
M Motor
M/B Main Fuse Box
MG Magnet
Mi Middle
OP Optional Parts
PASS Passing
RH Right Hand
SBF Slow Blow Fuse
S.M.J. Super Multiple Junction
ST Starter
SW Switch
T.C.S. Traction Control System
UP Up
WASH Washer
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5. How to Use Super Multiple Junction (S.M.J.)
Page 1904 of 2248
6. Wiring Diagram
1. POWER SUPPLY ROUTING
LHD model
BU01-01A
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6. Wiring Diagram