What is the output voltage of ignition coil?
The voltage required is constantly changing and can vary from as little as 5,000 volts up to 25,000 volts or more. Some systems can put out as much as 40,000 volts under peak demand.
What is the input voltage to an ignition module?
The voltage that is available to the spark plug is somewhere between 20,000 volts and 50,000 volts or better. The job of the ignition system is to produce that high voltage from a 12 volt source and get it to each cylinder in a specific order, at exactly the right time. Let’s see how this is done.
What is the function of ignition control module?
The ignition module is responsible for firing the spark plugs. Each spark plug must fire at exactly the right time for the engine to run properly. The ignition module uses input from the crankshaft position sensor or camshaft position sensor to determine when to fire the spark plugs.
How can I check the voltage of the ignition module?
Locate the terminals running into and out of the ignition module. Placement of the module varies from model to model so check the appropiate service manual of your vehicle for the exact location. Turn the ignition on and use your DVOM to check for voltage to the ignition module and the positive terminal of the ignition coil.
How does the electronic ignition control module work?
The electronic ignition control module is a solid state “On/Off” switch for the ignition system. The module receives a signal from a sensor inside the distributor. The signal is then used to fire the ignition coil creating the energy for the spark plugs.
What should I do if my ignition module is not working?
If you cannot start the car, you need to test the ignition control module using a light timing tester to check the output of the module. Connect the timer to the positive terminal of the battery and check the continuity of the black output wire while cranking the starter. If the light blinks, the module is good.
Why do ignition coils have high voltage output?
A higher voltage output allows the generation of a sufficient spark, even if the spark plugs have deteriorated and become fouled. It is generally not suggested to run with the distributer disconnected, as the output voltage of the coil can then rise high enough to damage the coil internally.
Locate the terminals running into and out of the ignition module. Placement of the module varies from model to model so check the appropiate service manual of your vehicle for the exact location. Turn the ignition on and use your DVOM to check for voltage to the ignition module and the positive terminal of the ignition coil.
What is the role of the ignition module?
Its two main roles are to create a spark strong enough to ignite the air/fuel mixture for combustion and to control the timing of the spark plugs by opening and closing the ignition coil ground circuit. The ignition module has a direct impact on the performance of the engine.
What happens when a Distributorless Ignition module fails?
These pulses are then delivered to the spark plugs either via a distributor cap, rotor, and spark plug wires, or directly (in the case of distributorless ignition systems.) When an ignition module fails, the engine will not start or run.
A higher voltage output allows the generation of a sufficient spark, even if the spark plugs have deteriorated and become fouled. It is generally not suggested to run with the distributer disconnected, as the output voltage of the coil can then rise high enough to damage the coil internally.