The Ignition Coil applied in the Nissan Juke converts a standard 12-volt supply from the vehicle battery into a high-voltage output of between 15,000 and 40,000 volts, powerful enough to fire the spark plugs and ignite the air fuel mixture. The Ignition Coil is built up of several hundred turns of thicker primary copper wire and many thousands of thinner secondary turns wound around an iron core and sealed in a polymer case. The ignition switch is activated to supply current to the primary winding. A magnetic field builds up in the transformer. As the flow of current is stopped by the trigger, the magnetic field starts collapsing. This induces high voltage in the secondary winding of the transformer. The high voltage exits the transformer and goes to the plugs. The stepped-up voltage allows combustion to take place optimally in the Nissan Juke engine when driving under normal conditions. The Ignition Coil connects to a low voltage input but also connects to a high voltage output that feeds the plugs. In car ignition, the Ignition Coil acts as the step-up transformer. Damaging an Ignition Coil may be caused by heat, vibration, or high resistance in the plug wires. In other words, the Nissan Juke may experience a rough idle, power loss, or a warning light on the dashboard. Regular inspections maintain a consistent performance of the Ignition Coil and overall Nissan Juke.
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