Toyota Supra 2015 Wiring Diagram Manual page 4

A : System Title
B : Indicates a Relay Block. No shading is used and only the
Relay Block No. is shown to distinguish it from the J/B.
Example: 1 Indicates Relay Block No. 1.
C : Indicates the connector to be connected to a
part (the numeral indicates the pin No.)
Explanation of pin use.
The pins shown are only for the highest grade, or only
include those in the specification.
D : Connector Color Connectors not indicated are milky
white in color:
E : ( ) is used to indicate different wiring and connector, etc.
when the vehicle model, engine type, or specification is
different.
F : Indicates related system.
G : Indicates the wiring harness and wiring harness
connector. The wiring harness with male terminal is
shown with arrows ( ).
The first letter of the code for each wiring harness and wiring
harness connector(s) indicates thecomponent's location, e.g,
"E" for the Engine Compartment, "I" for the Instrument Panel
and Surrounding area, and "B" for the Body and Surrounding
area.
When more than one code has the first and second letters in
common, followed by numbers (e.g, IH1, IH2), this indicates
the same type of wiring harness and wiring harness connector.
H : Represents a part (all parts are shown in sky
blue). The code is the same as the code used in
parts position.
I : Junction Block (The number in the circle is the
J/B No. and the connector code is shown beside
it). Junction Blocks are shaded to clearly
separate them from other parts .
Example:
v
v
3B indicates
that it is inside
Junction Block
No. 3.
J : Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black
BR = Brown
G = Green
GR = Gray
The first letter indicates the basic wire color and the second
letter indicates the color of the stripe.
Example: L - Y
K : Indicates a wiring Splice Point (Codes are "E" for
the Engine Room, "I" for the Instrument Panel,
The Location of Splice Point I 5 is indicated by the shaded
section.
L : Page No.
M : Indicates a shielded cable.
N : Indicates a ground point.
The first letter of the code for each ground point(s) indicates
the component's location, e.g. "E" for the Engine
Compartment, "I" for the Instrument Panel and Surrounding
area, and "B" for the Body and Surrounding area.
O : Indicates the pin number of the connector.
The numbering system is different for female and male
connectors.
lower right
P : When 2 parts both use one connector in common, the parts
connector name used in the wire routing section is shown in
square brackets [ ].
L = Black R = Red
LG = Light Green V = Violet
O = Orange W = White
P = Pink Y = Yellow
(blue) (yellow)
lower left
B
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