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Home >> Ford >> 1990 >> Aerostar Van Window Extended, 4.0 X, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Module Checks >> DISTRIBUTORLESS Ignition System (Dis) Module
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DISTRIBUTORLESS Ignition System (Dis) Module

  1. Turn ignition off. Using DVOM, connect negative lead to negative battery post and positive lead to DIS connector IGND terminal with connector attached. Resistance should be 5 ohms.
  2. If resistance is not as specified, verify module base plate and mounting screws are clean and tight. If base plate and mounting screws are okay, replace module.
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