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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1686 (Hybrid Controls - DTC B008A To DTC P0AF7) >> DTC P0AB9 >> Action Taken When the DTC Sets >> Cranks But Does Not Start

Cranks But Does Not Start

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition is turned to Crank, the HPCM will command drive motor generator 1 to rotate the engine. The drive motor will continue to rotate the engine at a specific RPM until the engine starts and causes increased engine RPM. The HPCM will cease engine rotation if an increase in engine RPM is not observed after several seconds. This function may have the appearance of a start/stall condition.

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