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Home >> Jeep >> 1990 >> Wrangler L6-258 4.2L VIN T 2-bbl >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Ignition System >> Ignition Control Module >> Description and Operation >> Ignition Control Module (ICM)
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Ignition Control Module (ICM)

Ignition Control Module:






The ignition control module receives ignition signals from the Micro Computer Unit (MCU) and triggers the coil, by interrupting the primary circuit to the ignition coil at the precise instant it is needed. It also automatically adjusts ignition dwell.