| Electrical
Systems
Vehicles today have many components and accessories
that are dependent on the electrical system: from the ignition and
fuel system to accessories such as your
radio, headlights and wipers. The engine, in turn, powers the electrical
system.
 Here
are three key components of the electrical system:
Battery
When you car’s engine is off, the battery provides the required
power to the rest of the system, as well as during start-up (cranking).
It also supplements the power from the charging system during periods
of high demand.
Charging System
This is the heart of the electrical system. It consists of three
main components: the belt driven alternator, various electrical
circuits, and a voltage regulator. The alternator supplies power
to the electrical system and recharges the battery after your car
has started. Just like is sounds; the voltage regulator controls
the voltage, keeping it within the operating range of the electrical
system.
Starting System
This system consumes more electrical power than any other system
in your car. The starting system consists of three components that
work in tandem: the ignition switch, the starter relay or solenoid,
and the starter motor. The ignition switch controls the starter
solenoid, which activates the starter motor. The starter motor then
turns the engine until your car starts.
What Midway Excel Tire & Auto Centre
Service includes:
- Battery Visual Inspection
- Battery cable connections
- Battery hold-down hardware
- Battery case condition
- Electrolyte level (where applicable)
- Battery Load Test
- Measures the battery’s ability to “work”.
Results are compared to the battery and vehicle manufacturers’
specifications.
Charging System Visual Inspection
- Alternator drive belt
- Alternator mounting brackets
- Electrical connections
Charging System Test
- Alternator output (current) and voltage are
tested. Results are comparable to manufacturer’s specifications.
Starting System Visual Inspection
- Starter cable connections
- Starter mounting bolts and brackets
Starter Electrical “Draw”
Test
- Measurers the amount of electrical energy
required to turn the engine over during cranking. Results are
compared to manufacturer’s specifications.
Warning Signs*:
- Car turns over
very slowly or not at all
- Lights are dim when driving
- Accessories work slowly or not at all
- Alternator or generator light remains on
while driving
* These warning signs are only possible
symptoms of the problem. Please come in to Midway Tire & Auto
Centres and ask our service technicians for a professional diagnosis.
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