General information > Tips and Guides > Tutorials > 50 with box > Electrics > Test an ignition coil
Ce tutorial aims to explain how to test a circuit breaker.
La ignition coil has the role of providing ignition and participating in combustion. Connected to the spark plug, it triggers the spark of the spark plug par magnetic induction. The low voltage winding (12 V) delivers magnetic energy to a second high voltage winding (1,000 to 30,000 volts) sufficient to produce the spark and trigger the ignition air /essence.
Difficulty :
Temps necessary:
5 minutes
Necessary material :
The coil is essentially made up of 3 elements:
- The primary winding with a few hundred large section turns. It is supplied with 12 V, when the breaker is closed, it can then be crossed par a current of 6 to 20 A;
- The secondary winding with several thousand turns of small diameter and capable of generating a voltage of 1 thousand to 000 thousand volts when the primary current is interrupted;
- The core, in laminated sheets, of ferromagnetic metal.
1) The ignition coil converts the low voltage current to a higher voltage which helps generate the spark plug spark.
2) The goal is to know if the resistance present in the ignition coil works.
3) If you test the good wires with the multimeter and it displays a value, it means that the resistance is functional, it is said that there is a continuity.
4) On the other hand, if no value is observed, then the ignition coil is defective and must be replaced.
5) We will test the primary and secondary winding.
6) Test of the primary winding to ground.
7) The primary winding has continuity so it works.
8) Secondary winding test. From mass to interference suppression. Then from the primary winding to the interference suppressor.
9) The secondary winding has continuity. The ignition coil is working properly.
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