Electric Symbols

Not Connected Connected

Ground

+ -

Battery

Fuse

Switch (single pole single throw)

Switch (single pole double throw)

Diode

Light or Indicator

Electric Coil

86 85 87 87A

Relay

30

Horn

Buzzer

Resistor

Variable Resistor (potentiometer) (pot)

HR

Glow Plug

H

Hour Meter

GLOW PLUG OFF RUN START SO ST B I

Ignition Switch

G B

Alternator

B M

Starter Motor

M

Blower Motor (fan)

M

Fluid Motor (washer fluid pump)

V M

Wiper Motor

M

Motor

Pressure Switch

B A

Fuel Level Sensor

Air Filter Switch

+ A C B -

Oil Pressure Sensor

t

Temperature Sensor

Magnetic Pickup (engine speed)