Opel Frontera UBS. Manual - part 1583

8D–10

WIRING SYSTEM

Symbols and Abbreviations

Symbols

Symbol

Meaning of Symbol

Fuse

Fusible link

Fusible link wire

Switch

Switch

Contact wiring

Battery

Diode

Electronic parts

Resistor

Speaker

Buzzer

Circuit breaker

Symbol

Meaning of Symbol

Bulb

Double filament bulb

Motor

Variable register
Rheostat

Coil (inductor), solenoid,
magnetic valve

Relay

Connector

Light emitting diode

Reed switch

Condenser

Horn

Vacuum switching valve

+

–

Switch
(Normal close type)

M

WIRING SYSTEM

8D–11

Abbreviation

Meaning of Abbreviation

A

ABS

ASM

AC

A/C

ACC

A/T

C/B

CSD

DIS

EBCM

ECGI

ECM

ECU

EFE

EGR

4A/T

4WD

FL

FRT

H/L

IC

IG

Ampere (S)

Anti-lock brake system

Assembly

Alternating current

Air conditioner

Accessories

Automatic transmission

Circuit breaker

Cold start device

Direct ignition system

Electronic brake control module

Electronic control gasoline injection

Engine control module

Electronic control unit

Early fuel evaporation

Exhaust gas recirculation

4-speed automatic transmission

Four-wheel drive

Fusible link

Front

Headlight

Integrated circuit

Ignition

Abbreviation

Meaning of Abbreviation

kW

LH

LWB

M/T

OD

OPT

PCM

QOS

RH

RR

SDM

SRS

ST

STD

SW

SWB

3A/T

V

VSV

W

WOT

W/

W/O

Kilowatt

Left hand

Long wheel base

Manual transmission

Over drive

Option

Powertrain control module

Quick on start

Right hand

Rear

Sensing and diagnostic module

Supplemental restraint system

Start

Standard

Switch

Short wheel base

3-speed automatic transmission

Volt

Vacuum switching valve

Watt (S)

Wide open throttle

With

Without

Abbreviations

8D–12

WIRING SYSTEM

Parts for Electrical Circuit

Wiring – Wire color

All wires have color–coded insulation.
Wires belonging to a system’s main harness will have a
single color (1). Wires belonging to a system’s subcircuits
will have a colored stripe (2). Striped wires use the
following code to show wire size and colors.

Example: 0.5 G / R

Red (Stripe color)

Green (Base color)

Wire size (0.5 mm

2

)

Wiring – Wire Color Coding

Abbreviations are used to indicate wire color within a circuit diagram.
Refer to the following table.

Color Coding

Meaning

Color Coding

Meaning

B

Black

BR

Brown

W

White

LG

Light green

R

Red

GR

Grey

G

Green

P

Pink

Y

Yellow

LB

Light blue

L

Blue

V

Violet

O

Orange

1

2

WIRING SYSTEM

8D–13

Wiring – Wire Size

The size of wire used in a circuit is determined by the
amount of current (amperage), the length of the circuit,
and the voltage drop allowed. The following wire size and
load capacity are specified.  (Nominal size means
approximate cross sectional area (1).)

Wiring – Wire Size Table

Nominal size

Cross sectional

Outside diameter

Allowable

area (mm

2

)

(mm)

current (A)

0.3

0.372

1.5

9

0.5

0.563

1.7

12

0.85

0.885

1.9

16

1.25

1.287

2.2

21

2

2.091

2.7

28

3

3.296

3.6

37.5

5

5.227

4.4

53

8

7.952

5.5

67

15

13.36

7.0

75

20

20.61

8.2

97

1