Toyota JCE10, Wiring Diagram Manual, Page: 20 / 36

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.
RELAY, DOUBLE THROW
A relay which passes current
through one set of contacts or the
other.
SPEAKER
An electromechanical device which
creates sound waves from current
flow.
SWITCH, MANUAL
1. NORMALLY
OPEN
2. NORMALLY
CLOSED
Opens and closes
circuits, thereby
stopping (1) or
allowing (2) current
flow.
RESISTOR
An electrical component with a fixed
resistance, placed in a circuit to
reduce voltage to a specific value.
SWITCH, DOUBLE THROW
A switch which continuously passes
current through one set of contacts
or the other.
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.
SWITCH, IGNITION
A key operated switch with several
positions which allows various
circuits, particularly the primary
ignition circuit, to become
operational.
SENSOR (Thermistor)
A resistor which varies its resistance
with temperature.
SWITCH, WIPER PARK
Automatically returns wipers to the
stop position when the wiper switch
is turned off.
(Reed Switch Type)
SENSOR, SPEED
Uses magnetic impulses to open
and close a switch to create a signal
for activation of other components.
TRANSISTOR
A solidstate device typically used as
an electronic relay; stops or passes
current depending on the voltage
applied at "base".
SHORT PIN
Used to provide an unbroken
connection within a junction block.
SOLENOID
An electromagnetic coil which forms
a magnetic field when current flows,
to move a plunger, etc.
WIRES
Wires are always drawn as
(1) NOT straight lines on wiring
CONNECTED diagrams.
Crossed wires (1) without a
black dot at the junction are
not joined;
crossed wires (2) with a
(2) SPLICED black dot or octagonal (O)
mark at the junction are
spliced (joined)
connections.
19
E
RELAY
1. NORMALLY
CLOSED
2. NORMALLY
OPEN