What does the control module ignition do?

What exactly is an (ICM) Ignition Control Module? An ICM is nothing more than a switch that turns the ignition system “On” or “Off”. Inside of the distributor there is a sensor that sends out a signal to the ICM, which is then used to fire up the ignition coil that will create enough energy for the spark plugs.

How can I test my ignition control module?

You can test for overheating while the car still runs. Idle the engine for 30 minutes, and then tap the module with a screwdriver. The car may stall, which would strongly suggest that ignition control module may be the cause of the overheating you’re experiencing.

What are the symptoms of an ignition module failure?

Like all automobile components, the ignition module will eventually deteriorate and break. However, you can anticipate and prepare for the failure. These tips will help you recognize the two most common symptoms of ignition module failure. 1. Overheating Overheating is a common indicator that you could be having an ignition module problem.

What happens when an ignition module overheats?

Ignition modules that are overheating will soon completely cease to function and in the meantime can cause cause electrical shorts, engine stuttering, lower gas mileage, power loss, stalling, and gasoline odors in the exhaust.

What to look for in a secondary ignition problem?

But not so fast on kV-only diagnostics. When diagnosing in-depth secondary ignition problems, we’ll find that kV demand can vary widely according to air/fuel ratio, running compression, and spark timing. That said, there’s more to ignition science than looking for the classic quarter-inch long “hot blue spark” jumping from coil secondary to ground.

Where is the mark on the ignition timing?

With the light wired up per the instructions and the engine running, point the light at the main pulley that comes off the crankshaft. This pulley has a notch or mark on it. On an engine timed to zero degrees advance, also known as Top Dead Center, that mark will appear to flash with the light pointed at it.

What does the push button start indicator light mean?

If there is a malfunction with the push button start function, the push button start indicator light (amber) flashes. In this case, the engine may start, however, have the vehicle checked at an Authorized Mazda Dealer as soon as possible.

What is the role of the ignition module?

Its two main roles are to create a spark strong enough to ignite the air/fuel mixture for combustion and to control the timing of the spark plugs by opening and closing the ignition coil ground circuit. The ignition module has a direct impact on the performance of the engine.