What is the main purpose of the ignition 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.
Does a ignition control module need to be programmed?
Reprogramming your ECM is necessary for keeping your vehicle control software up to date. Much like the operating system on your home computer, improvements in software are often made by your car’s manufacturer.
Where is the ignition control module?
Typically the Ignition Control Module is located inside of the distributor housing or mounted on the side of the engine compartment.
How do you change the ignition module?
Reach under the engine and unplug the coil assembly electrical connectors. Remove the assembly mounting bolts using a ratchet and socket. Remove the assembly from the engine and remove the coils using a ratchet and socket. Remove the old ignition module from the base plate and install the new unit.
Should you ever disconnect or try to repair the electronic control module yourself?
You should never disconnect or try to repair the electronic control module yourself because you could seriously damage your vehicle or yourself.
What is the ignition control module?
The Ignition Control Module is a part of the ignition system. It manages the electrical current that is fed to the ignition coil in order for it to generate the right amount of voltage for the spark-plug to ignite the fuel mixture. In turn, the ignition control module sends the input to the ignition coil to fire it up.
How do you check a ignition Control Module?
How to Test an Ignition Control Module
- Remove one plug wire at the spark plug and insert an old spark plug into the end of the plug boot.
- Check for voltage at the coil positive terminal when the ignition key is on.
- Locate the ignition module positive (+) wire.
- Locate the ignition module negative (-) wire.
How do you replace an ignition control module?
Remove the two electrical plugs on the side, then remove the two screws that are attaching the ICM to the distributor. You’re now ready to install the new ignition control module.
Where is the distributor on an ignition module?
Install the distributor on the engine following the match-mark and install the distributor cap. Look for the ignition coil and module assembly. Follow the spark plug wires starting at the spark plugs. The wires connect to the coil and module assembly, which may be mounted on the back of the engine.
How to replace a GM ignition module liveabout?
The grease was included with your replacement ignition module. Apply a liberal coat before you start the process of installing the module. Attach the two screws to your new ICM and reinstall the wiring harnesses. Next, reinstall your distributor cap. Aren’t you glad you don’t have to put all of those plug wires back now?
Where is the spark plug on an ignition module?
Open the hood and remove the distributor cap using a Phillips screwdriver or ratchet and socket, but do not disconnect the spark plug wires from the distributor cap. Some ignition modules are mounted inside the distributor.