How do I test my Honda ICM?
Honda Civic: How to Test and Replace Ignition Control Module
- Step 1 – Remove the distributor covers. With a Phillips screwdriver, remove three mounting screws on the distributor cap.
- Step 2 – Test the ICM. Disconnect the black/yellow, white/blue, and yellow/green wires from the ICM.
- Step 3 – Replace the ICM.
How to identify the Ignition Control Module ( ICM )?
How to identify the Ignition Control Module. The ICM location varies from make, to models and of course to the year the vehicle was built.
How does the ignition control module control the spark?
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. How to identify the Ignition Control Module.
What happens if ignition control module goes bad?
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. As you can notice this list is simple and perfect if you’re trying to work with a budget.
How do you test the ICM on a car?
Step 1 : Check your ICM for current. Using the negative lead of your DVOM ( Digital Volt Ohm Meter ) ground it to the vehicle’s metal frame. PS : It MUST be grounded off a metal part of the car. Now have your helper crank the engine while you’re testing the different terminals for current.
How do you replace Ignition Control Module on Honda Civic?
Remove two Phillips screws underneath the ICM to replace it. Simply install the new ICM with the same screws. Reattach the wires connecting the ICM to the distributor housing. Reattach the inner cover and rotor. Secure the rotor with the Phillips screw. Reattach and secure the distributor cap.
When to test and replace Ignition Control Module?
If you’ve taken all the diagnostic procedures but none of them have solved the problem, try testing and replacing the ignition control module (ICM). This unit relays the signal from the distributor to the spark plugs, and often times, bad grounds, water entering the distributor, or excessive heat may cause the ICM to become faulty.
How do you test the ICM on a Honda Civic?
If the voltage of this wire is correct, test the white/blue and yellow/green wires. They should give off about 12 volts as well. Lastly, check for continuity between the blue wire of the ICM and the distributor housing.
How do you test ignition on Honda Civic?
Turn on the ignition. Attach one lead of the multimeter to the black/yellow wire, and ground the other lead to a nearby piece of metal. The multimeter should give a reading of about 12 volts. If the voltage of this wire is correct, test the white/blue and yellow/green wires. They should give off about 12 volts as well.