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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Hybrid/EV Energy Storage System) >> Diagnostic Information and Procedures >> DTC P1B31 >> Circuit/System Description

Circuit/System Description

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The battery energy control module measures the internal hybrid battery voltage across the high voltage battery string and in total. If the internal voltage values are out of range at a given battery temperature, this DTC will set.

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