fuses MAZDA 323 1992 Workshop Manual Suplement

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GI CAUTKN
PRECAUTIONS TO TAKE WHEN SERVICING AN ELECTRICAL SYSTEM l Note the following items when servicing the electrical system.
l Do not alter the wiring or electrical equipment in any way; this may damage the vehicle or cause a fire
from short-circuiting a circuit or overloading it.
l The negatrve (-) battery cable must be removed first and
rnstalled last. l Do not reptace with fuses exceedrng specified capacity
Cautron
l 8e sure that the ignitton and other switches are off
before disconnectrng or connecting the battery cables.
Failure to do so may damage the semrconductor
components. Caution l Repfacing a fuse with one of a larger capacrty than
desrgnated may damage components or cause a frre.
l Secure harnesses with provrded clamps to take up slack. l Tape areas of the harness
that may rub or bump l When mounting
components, be sure the
against sharp edges to
protect rt from damage. harness IS not caught or
damaged.
Caution
l Clamp all harnesses near vibratrng components (for
example, the engine) to remove slack and to prevent
contact resultrng from vibration. i Drsconnect heatsensitive l Make sure that the
parts (for example, relays
and ECU) when performing connectors are securely
connected when installed.
l Do not handle electrical components roughly or drop
them. maintenance (such as
weldrng) where
temperatures may exceed
80°C [176OFj.
-*
HI

GI Wiring Diagrams
Contents of wiring diagrams
l This document comprises the 8 groups shown below. The main components are summarized in the
components location diagram at the
end of the document.
I I Gi General information A how-to on using and reading wiring diagrams, 1
using test equipment, checking harnesses and
connectors, and findrng trouble spots
Y , Ground points
- Ground routes from and to the battery
W Electrical wiring Shows main fuses and other fuses for each
schematics system
A-U Circuit diagrams for
~ individual systems Shows circuit and connector diagrams and
component and connector location diagrams
X Common connectors Shows connectors common throughout system
~ JB i Joint box complete
wiring system
I Shows internal circuits and connectors
PL Parts location
Pi index Shows location of major electrical parts
Gives page number of circuit diagram for each
component
Using wiring diagrams
l The use of the wiring diagram depends on its application. Application
-or checking
:ircuits of
ndividual
systems
For checking
ground circuit
of individual
systems Use
II Application For checking
fuse
connections
Open to page with circuit diagram and
harness routing to be used and fold out
common connector diagram or joint box
diagram.
II
For finding
page numbers
of systems and
components
Open to page with ground point diagram
and fold out common connector diagram
or joint box diagram. Use
3pen to electrical wiring schematic.
Parts Index System Index
or
Open to parts index or system index.

GI Reading Wiring Diagrams
Symbols
Symbol Meaning Symbol Meaning
Battery
l Generates electricity through
Resistance 0 A resistor with a constant value.
chemical reaction. l Mainly used to protect electrical
l Supplies direct current to circuits. components in circuits by maintaining
rated voltage.
l Reading resistance values.

Ground (1)
l Connecting point to vehicle body or No.1 color band other ground wire where current flows No.2 color band
-A-
from positive to negative terminal of No.3 mbr band
battery. No.4 color band
1 l Ground (1) indicates a ground point to
body through wire harness.
Ground (2)
l Gound (2) indicates point where
component is grounded directly to
body.
Remarks
l Current will not flow through a circuit if
ground is faulty.
Fuse (1)
0 Melts when current flow exceeds that
specified for circuit, interrupts current
I__q/y)__ now.
Precautions
(box)
l Do not replace with fuses exceeding
Fuse (2) specified capacity.
(Cartridge)
Main fuse/Fusible
Transistor (1)
l Electrical switching component. l Turns on when voltage is applied to Motor
0 Converts electrical energy into
mechanical energy.
Transistor (2)
0 Reading code. a Pulls in and discharges gases and
liquids.
Number of temtinak
Lamp l Emits light and generates heat when Current flows through filament. Cigarette lighter l Electrical coil that generates heat.

Troubleshooting GI
Precautions to take when servicing an electrical system
l Note the following items when servicing the electrical system.
l Do not alter the wiring or electrical equipment in any way; this may damage the vehicle or cause a fire from
short-circuiting a circuit or overloading it. l
The negative (-) battery cable must be removed first and
installed last. l Do not replace with fuses exceeding specified capacity.
1OA
f5A
Zaution
o Be sure that the ignition and other switches are off
Caution
before disconnecting or connecting the battery
l Replacing a fuse with one of a larger capacity than
cables.
designated may damage components or cause a fire.
Failure to do so may damage the semiconductor
components.
0 Tape areas of the
l When mounting l Secure harnesses with provided clamps to take up slack.
harness that may rub or
components, be sure the
bump against sharp
harness is not caught or
edges to protect it from
damaged.
damage.
Zaution
B Clamp all harnesses near vibrating components
(for example, the engine) to remove slack and to
prevent contact resulting from vibration.
D Do not handle electrical components roughly or drop
them.
l Disconnect heat-
sensitive parts (for
example, relays and
ECU) when performing
maintenance (such as
welding) where
temperatures may exceed
80°C (176°F). l Make sure that the
connectors are securely
connected when
installed.
11