DIS module testing

The Ignition Module is tasked with activating the two Ignition Coil Packs that feed the 8 Spark Plugs that the 2.3L 4 Cylinder Engine is equipped with.

Full procedure

Here's the basics that you need to get to the bottom of the problem. In a nutshell, this is what happens when you turn On the Key and crank the Engine:

The Crank Sensor is fed with Power and Ground.
The Crank Sensor is a Hall-Effect type Sensor.
The Crankshaft rotation induces the Crank Sensor to start creating two separate Crank Signals.
One Crank Signal is called the CKP (Crankshaft Position) Signal.
The CKP Signal is only sent to the ICM.
The other Crank Signal is called the CDI (Cylinder Identification) Signal.
The CID (Cylinder Identification) Signal is the one that helps the Ignition Control Module synchronize the Ignition Coil Packs so that they fire in the correct Firing Order.
Both the ICM and the PCM receive the CID Signal.
The Ignition Module now starts to activate the Coil Packs.
During Engine Cranking, only the Right Side Spark Plugs (Exhaust Manifold Side of the Engine) are fired.
Once the Engine starts, the PCM now commands the ICM to fire both Coil Packs through the Dual Plug Inhibit (DPI) circuit (circuit 6 of the ICM Top Connector), .
Each Coil Pack feeds Spark to 4 Spark Plugs on either side of the Engine.
Spark Plugs on the Intake Manifold Side of the Engine are referred to as: Intake Side Spark Plugs or Right Side Spark Plugs.
Spark Plugs on the Exhaust Manifold Side of the Engine are referred to as: Exhaust Side Spark Plugs or Left Side Spark Plugs.