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Home >> Mercury >> 2001 >> Cougar S >> Repair and Diagnosis >> External Pages >> Different car >> Section 1359 (Module Communications Network System) >> Diagnosis And Testing >> Communications Network >> Pinpoint Tests >> Pinpoint Test A: The Differential Electronic Module (DEM) Does Not Respond To The Diagnostic Tool >> Possible Causes
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Possible Causes

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
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