That would depend on the car/truck make and model. Each manufacture has a specific way to test the ICM and most of the new cars/trucks can't be done at home. The older models up to 2002, have codes that you can access and define them with Haynes manuals. There are also plenty of resources (code keys and readers) you can obtain from auto part stores. And some even tell you through flashing of the check engine lights on the dash.
Remove distributor cap. remove rotor. remove icm shield. remove all wires from icm. remove two screws holding icm. pull icm strait out
What is ICM Non combustible
The 1992 Ford Ranger ICM is located on the firewall in the engine compartment. The ICM will be on the drivers side of the firewall.
The ICM or the Ignition Control Module is the brains behind the spark plugs. The ICM tells the spark plugs when to fire and lets the engine know when gas needs to be released for proper engine ignition. Sometimes if your ICM is out or going bad, you may be able to start your motor up nicely once and then when you turn it off it may not start back up but it rarely ever goes out. mechanic for 10yrs
Icm is not an abbreviation for any part on a Jeep Cherokee that I am aware of.
ICM
The CS in ICM-CS stands for Campaign Star.
Auto zone carries the ICM. I did my ICM & Coil together. Be sure the trigger/triggers are working (they rarely die). I tested mine using an LED and spinning the distributor by hand to get a pulse out of the LED. Adam Goldstein
For a few years there, Honda had a problem with the ICM. It's inside the distributor.
ICM
This code is set when the pcm gives 5v signal to ignition bypass and dose not get a return signal from icm, check wiring at pcm and icm possible icm fault, or crank sensor.
I don't know excatly, But Iam pretty sure that Chevy put's the "Icm" in the distributor or on the coil pack. Your vehical however might not have a ignition module the "Power train control module"(pcm) in some vehical's control's spark timing.