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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1912 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC P0563 (ECM) >> Circuit/System Description (ECM)

Circuit/System Description (ECM)

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The engine control module (ECM) monitors the system voltage to ensure that the voltage stays within the proper range. Damage to components, and incorrect data may occur when the voltage is out of range. If the ECM detects that the system voltage is high, DTC P0563 sets.

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