How does the ignition system work in a Jeep Cherokee?

How does the ignition system work in a Jeep Cherokee?

Based on control system inputs, the ECU triggers the ignition coil via the ignition control module. The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module.

How is the engine speed sensor on a Jeep Cherokee?

The engine speed sensor senses TDC, BDC, and engine speed by detecting the flywheel teeth as they pass by the sensor during engine operation. The engine speed sensor is non-adjustable. The flywheel has three trigger notches, 120 apart.

How does the ICM work on a Jeep Cherokee?

The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module. The ICM consists of a solid state ignition circuit, an integrated ignition circuit and an integrated ignition coil that can be removed and serviced separately if necessary.

How does the ECU work in a Jeep Cherokee?

The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module. The ICM consists of a solid state ignition circuit, an integrated ignition circuit and an integrated ignition coil that can be removed and serviced separately if necessary. The ECU provides an input signal to the ICM.

How to replace ignition distributor in Jeep 4.0L engine?

First – write down somewhere numbers to which cylinder which wire goes. Unfortunately there is no such info on any distributor caps I have seen. You can also print this picture: Then make a mark both on the distributor and the cap just next to the cylinder number one terminal: Now, using philips screwdriver, unbolt and remove distributor cap. 4.

Based on control system inputs, the ECU triggers the ignition coil via the ignition control module. The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module.

The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module. The ICM consists of a solid state ignition circuit, an integrated ignition circuit and an integrated ignition coil that can be removed and serviced separately if necessary.

The ECU is able to advance or retard ignition timing by controlling the ignition coil through the ignition control module. The ICM consists of a solid state ignition circuit, an integrated ignition circuit and an integrated ignition coil that can be removed and serviced separately if necessary. The ECU provides an input signal to the ICM.

Where is the ignition coil located on a jeep?

A sync pulse signal generator (stator) inputs the firing order to the ECU. The ignition control module is mounted to the ignition coil. See Fig. 2. Based on control system inputs, the ECU triggers the ignition coil via the ignition control module.

When do you know your Jeep Cherokee ignition switch is bad?

If your Jeep Cherokee is starting right up, but then immediately dies, that is a very good indication that the ignition switch is bad. Here’s what happens. You aren’t getting power to the ignition or fuel pump while the key “rests” in the run position.

Why does my Jeep 4.0L have no start?

CASE 2: Spark was NOT present in all of the cylinders (DISTRIBUTOR TYPE): This test result tells you without a doubt that the no start condition of your 4.0L equipped Jeep is due to a malfunction in the ignition system. Now, with no spark in any of the engine cylinders, this what I would suggest:

Why does my Honda 3.0L have no start?

If there is spark being fed to all cylinders, then you can eliminate the ignition system as the cause of the no start condition and can move on to other tests (like testing fuel pressure). Remember, the idea behind checking for spark is to see if all of the engine cylinders are getting spark.