How do you test an ignition control unit in the GM? Step 1: Check your ICM for up-to-dateness. Step 2: Check your spark plugs ignition module for current. Step 3: Isolate the problem. Read our article and use a Multi-Meter. Ir al contenido You know how to test ignition control module with multimeter. How to test ignition module with multimeter Ignition control module The what is an ignition control module an ICM is nothing more than a switch that switches the ignition system «On» or «Off».
Shop at flagship eins inc for engine control unit where is the ignition control module The location of the ICM varies according to make, model and of course year of construction of the vehicle. Related Posts: How to test gm ignition module with multimeter How to test ignition control module gm 3.
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Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. Place the red lead of the multimeter on the positive coil terminal. Place the black lead to the battery negative terminal.
Turn on the ignition switch to the "Run" position. The multimeter should read battery voltage at the positive terminal. If voltage is not present, then the problem is with the ignition switch or ignition wiring circuit.
Turn the key "Run" position without starting the engine. Pierce the positive wire with the multimeter's red lead. There should be a reading of battery voltage at the wire. If battery voltage is not present, check for an open circuit between the wire and the ignition switch. The ignition control module must control the timing of the spark so that it is able to occur exactly at the right cylinder and the perfect moment.
If you would like to know more about the ignition process you can do so by reading our next post. The ICM location varies from make, to models and of course to the year the vehicle was built. Before going ahead and look for it. Typically the Ignition Control Module is located inside of the distributor housing or mounted on the side of the engine compartment.
Not to state the obvious, but once an engine module goes bad your vehicle will not run at all, but luckily you can fix that with the simplest of tools and in 3 easy to follow test. If there is no current being passed to the terminals sadly you will have to replace the entire ignition control module. If after you plugin in the test light and it is not powered up or flickers then you might be in need of a new ignition control unit. Make sure that the battery voltage is optimal prior to testing.
So now that you have noticed that you get no current with you ignition control module now what do you do? If at any point during the test you get an infinite reading on your DVOM then you can conclude that the ignition module ICM plug wires are faulty or you really need a new control unit, if not your ignition control module might not be the real problem with your vehicle check the distributor cap.
Once you are done with the wires, and you decided that you actually need some electrical wiring done you can easily do it yourself or get in touch with your local mechanic or take it up a notch and do a couple coil tests.
Now if it is not a wiring issue you and you need to buy an ignition control module,Flagship one will be able to help you find it, as they have a large selection of control modules. Leave a Reply Cancel reply Your email address will not be published. Daimler Chrysler designed Hemi power Read More. Your Engine Control Module acts as the communicator between numerous sensors within your vehicle.
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