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SECTION 1

how to read electrical wiring diagram



1. HOW TO READ ELECTRIC WIRING DIAGRAM

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1) contents of electrical wiring diagram (circuit)

position
explanation
a
- Upper horizonal lines : Power supply - Power supply lines : 30, 15, 15A, 15C
b
- Ef7 or Af3 or F2
  • ef7 : fuse no #20 in engine fuse block
  • af3 : fuse no #3 in engine fuse block aux.
  • f2 : fuse no #2 in i/p fuse block
c
- Connector(X101~X902)
d
- Wiring Harness Splice
  • j201 : wiring harness splice
  • jx202 : wiring harness splice pack
e
- Internal circuit of component (Relay) (Component name, terminal number)
f
- Internal circuit of component (Module) (Component name, terminal number and connecting wiring circuit)
g
- Wiring Harness Color
h
- Ground Harness Pack
  • ground harness pack position (gx101~gx402)
i
- Lower horizonal line : Ground Line
  • ground position (g103~g302)
  • b : body ground



2. CIRCUIT IDENTIFICATION SYMBOL

identification
symbol
meaning
x
connector
e
fuse in engine fuse block.
a
fuse in engine fuse block. Aux
f
fuse in i/p fuse block
g
ground
j
splice pack



3. FUNCTION OF POWER SUPPLY LINE (NUMBER)

power supply no.
power supply condition
15
battery voltage(b+) supply in Ignition "ON" and "ST" (IGN II/III) Position
15a
battery voltage(b+) supply in Ignition "ON" (IGN II) Position
30
battery voltage(b+) supply directly regardless of Ignition Position
31
ground connected to battery(–)



4. WIRING HARNESS COLOR IDENTIFICATION

abbreviation
color
abbreviation
color
bn
brown
l-bu
light blue
gn
green
rd
red
vt
violet
bu
blue
pk
pink
ye
yellow
wh
white
gy
gray
or
orange
bk
black
l-gn
light green
. .



5. HOW TO CHECK TERMINAL NUMBER OF CONNECTOR

- terminal number is given based on female terminal connector
ex) Terminal Number 4 of X405 connection

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