An ICM is nothing much more than a switch that transforms the ignition mechanism “On” or “Off”. Within of the distributor there is a sensor that sends out a signal to the ICM, i beg your pardon is then used to fire increase the ignition coil the will develop enough power for the spark plugs. The spark have to be solid enough to connect the gap between the spark plugs,therefore developing enough voltage come ignite the fuel/air mixture for a well timed combustion. The ignition regulate module must regulate the time of the spark so the it is able to occur exactly at the ideal cylinder and also the perfect moment. If you would prefer to know much more about the ignition process you have the right to do for this reason by reading our next post.

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How to recognize the Ignition control Module.

The ICM location varies indigenous make, to models and also of food to the year the vehicle was built. Please note that part cars can not have actually a separate ICM however is instead controlled by the Engine manage Module (ECM) which goes by various names such together the Powertrain manage Module( PCM) / Engine control Unit (ECU). Before going ahead and look for it. Fire up your find engine and find out whether you have actually an integrated Electronic Ignition system so girlfriend won’t finish up reading this since it won’t it is in of any use.

Typically the Ignition control Module is located inside the the distributor real estate or mounted on the next of the engine compartment. No to state the obvious, however once an engine module goes negative your vehicle will not run in ~ all, but luckily you can fix that through the simplest of tools and in 3 basic to monitor test.

testing an Ignition module is straightforward so, here is what girlfriend will require

A wiring chart of her vehicle(which have the right to be found online)Wire Piercing probesA helper(to crank the engine)A 12 volt check lightA instead of ignition switch**

As friend can an alert this perform is straightforward and perfect if you’re trying to work with a budget.


Step 1 : Check your ICM because that current.

Using the negative lead of your DVOM( Digital Volt Ohm Meter ) soil it come the vehicle’s steel frame. PS : that MUST it is in grounded turn off a metal part of the car. Now have actually your helper crank the engine while you’re testing the different terminals for current. If over there is no current being passed come the terminals i m so sad you will need to replace the whole ignition manage module.

Step 2 : Check your ICM Spark Plugs ( ignition module ) because that current.

To check the spark plugs for current, you will certainly grab her 12v check light and tap right into your spark plugs terminals. If her test flickers constantly when you crank the engine then you can go ahead and also note that your plugs space in an excellent working conditions. Currently the difficulty is you will have to run a much an ext thorough test for the other components in your vehicle. No current? save reading.

Step 3 : Isolate the problem.

You have had no current, currently what? We’re walking to have actually to inspect for continuity. I usually begin by inspecting every wires for signs of break,burnt marks or any sorts that fraying these space usually the tell-tale signs.

Using her DVOM check switch come the OHMS setup and closely retest the ICM wires again. Make sure you are trial and error the wires going from/to the ignition control module and also spark plugs. If you room still getting an infinite reading off her DVOM then you can go ahead and also conclude that your wires space faulty.

Once you’re done if it’s the wires that demands to be replaced it won’t be too lot of a hassle to repair however you might end increase needing the help of a default mechanic or girlfriend can quickly do it yourself if you’re up for the challenge. Currently if it is not a wiring worry or not an ignition coil issue and also you’re in need of an ignition manage module, you’re in luck because here at Flagship One we carry the nation’s biggest inventory the ignition manage module and better yet we have the many reasonable prices so be certain to inspect out our save or just provide us a contact at516-766-2223.Ourexpertsareheretohelp!


have the right to you check an ignition manage module?

Yes, you can certainly test an ignition regulate module and using a multimeter is among the fastest method to execute so.

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What walk the ignition manage module do?

The Ignition regulate Module or ICM is nothing an ext than a switch per se that turns the ignition system “On” or “Off”.

how do you check an ignition control module in GM?

Step 1 : examine your ICM for current. Step 2 : Check your Spark Plugs ( ignition module ) because that current. Step 3 : isolation the problem.

how do I understand if my ignition manage module is bad?

if you space not getting any type of current come or from your ICM your ignition regulate module is bad. Review our post and also use a multi meter