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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1039 (Battery, Charging System And Starting System Diagnosis (DTC B1327-DTC P1638)) >> Diagnosis >> DTC P0A7F >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The following DTCs are for the batteries located in the energy storage box (ESB):

P0A7F is for the hybrid battery pack life.

Battery voltage sensors allow the energy storage control module (ESCM) to monitor the voltage of the batteries in the energy storage box. The ESCM monitors the voltage drop across the battery voltage sensors and uses the inputs for hybrid calculations.

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