Toyota Supra 2015 Wiring Diagram Manual page 17

RELAY
1. NORMALLY
CLOSED
2. NORMALLY
OPEN
RELAY, DOUBLE THROW
A relay which passes current
through one set of contacts or the
other.
RESISTOR
An electrical component with a
fixed resistance, placed in a circuit
to reduce voltage to a specific
value.
RESISTOR, TAPPED
A resistor which supplies two or
more different non adjustable
resistance values.
RESISTOR, VARIABLE or
RHEOSTAT
A controllable resistor with a
variable rate of resistance.
Also called a potentiometer or
rheostat.
SENSOR (Thermistor)
A resistor which varies its
resistance with temperature.
SENSOR, SPEED
Uses magnetic impulses to open
and close a switch to create a
signal for activation of other
components.
SHORT PIN
Used to provide an unbroken
connection within a juction block.
SOLENOID
An electromagnetic coil which
forms a magnetic field when
current flows, to move a plunger,
18 etc.
Basically, an electrically
operated switch which
may be normally closed
(1) or open (2). Current
flow through a small
coil creates a magnetic
field which either opens
or closes an attached
switch.
SPEAKER
An electromechanical device
which creates sound waves from
current flow.
SWITCH, MANUAL
1. NORMALLY
OPEN
2. NORMALLY
CLOSED
SWITCH, DOUBLE THROW
A switch which continuously
passes cureent through one set of
contacts or the other.
SWITCH,
IGNITION
A key operated switch with several
positions which allows various
circuits, particularly the primary
ignition circuit, to become
operational.
SWITCH, WIPER PARK
Automatically returns wipers to
the stop position when the wiper
switch is turned off.
TRANSISTOR
A solid state device typically used
as an electronic relay; stops or
passes current depending on the
voltage applied at "base."
WIRES
Wires are always
drawn as straight lines
(1) NOT
on wiring diagrams.
CONNECTED
Crossed wires (1)
without a black dot at
the junction are not
joined;
crossed wires (2) and
a black dot or
(2) SPLICED
octagonal ( ) mark at
the juction as spliced
(joined) connections.
E
Open and
closes circuits,
thereby
stopping (1) or
allowing (2)
current flow.