Genuine Jeep Wagoneer Ignition Control Module

The Ignition Control Module of the Jeep Wagoneer rapidly switches the coil current to provide high-voltage timed output, allowing the engine to start and run. The early Jeep units placed the Ignition Control Module inside the electronic distributor. These Jeep Ignition Control Modules applied either a magnetic pickup or hall switch as one input. They use a transistor to break primary current every time the reluctor passes. This is the result of no more point wearing. Moreover, the spark gets more powerful as the coil recharges longer. The later versions of the Wagoneer adopted distributorless ignition technology. In this setup, the crankshaft sensor sends signals to the Ignition Control Module, which controls the ignition coils. Moreover, the computer takes care of ignition timing, which leads to cleaner power generation as well as lower emissions. On a Jeep Wagoneer, the Ignition Control Module still depends on the correct gap between the sensor and reluctor. Loose distributor bushings or a bad alignment can upset timing and cause a misfire. If the engine cranks without any spark, check the battery feed at the coil's positive terminal. Next, watch a test light at the negative post. The Ignition Control Module has failed, and the Wagoneer is silent. Jeep ignition is made more reliable with clean voltage, good relays, and quick electrical tests.

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