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9 Cards in this Set
- Front
- Back
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Alternator |
It generates electricity, drawing power from the engine. It generates enough power to meet all the requirements of all the electrical components in a car. |
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Battery |
It supplies power to start the car. Also, supplies power to various equipments when generator is not able to provide enough power e.g. playing car radio with engine off or heavy duty lamps and air-con at idle rpm. |
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Ignition coil/Fuel pump switch |
Petrol engines need spark to fire the cylinder. For diesel engine, the pump has to be kept on - which is usually done by a solenoid switch, to keep injecting fuel into the engine to keep it running. |
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Cooling Fans |
In earlier days, the cooling fans (radiator fan) were coupled with engine. But with front wheel drives and advancements, the cooling fans are controlled electronically i.e. they switched on when there is a requirement using a thermostat. The fans run on electricity. |
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Air-Con Blower |
This is another fan responsible for circulating from Air-Con to car cabin. |
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Lighting - head lamps, tail lamps, blinkers, brake lights etc. |
They are wired on a central circuit running throughout the car. |
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Motor/Actuators - wiper, power window etc. |
They are used to carry out various functions in the car including controls for side (wing) mirrors. |
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On-Board Computer - ECU |
It is the electrical Control Unit, managing various functions in the car. |
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Fuse Box / Relays |
They manage current in the car. Fuses prevent the electrical equipment from frying in case of faulty alternator, wiring etc. Relays do the switching of heavy electrical items in the car. |
