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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1967 (Hybrid Energy Storage System - 2.4L (Hp7)) >> Diagnostic Information and Procedures >> DTC P1A4E >> 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 battery energy control module (BECM) monitors the hybrid battery system for an overvoltage condition. A diagnostic is running continuously to verify that the battery pack voltage is not above 52 volts. DTC P1A4E will set if the diagnostic detects that the voltage is above 52 volts.

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