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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1968 (Hybrid Controls - 2.4L (Hp7)) >> Diagnostic Information and Procedures >> DTC P1A93 or P1A94 >> Circuit/System Description

Circuit/System Description

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 starter/generator control module (SGCM) monitors auxiliary power module (APM) On/Off, DC - DC direction is commanded On but converter is Off to check the status of the 14 volt power module. The SGCM also monitors to detect if the APM On when it is not commanded On causing a large current output. If a fault is detected, the appropriate DTC will set.

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