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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Hybrid Engine Controls - DTC B008A To DTC P0AF7) >> DTC P061A or P061B >> Circuit/System Description

Circuit/System Description

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This diagnostic applies to internal microprocessor integrity conditions within the hybrid powertrain control module (HPCM). The HPCM monitors its ability to read and write to the memory. The HPCM processor monitors the data to verify that the indicated torque calculation is correct. The HPCM is located within the drive motor generator power inverter module (PIM) and is not serviceable separately.