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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 251 (Automatic Transmission - 2ML70 - DTC P0218 To DTC P0967) >> DTC P077B >> Action Taken When the DTC Sets >> HPCM

Action Taken When the DTC Sets: HPCM

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

The HPCM calculates OSS direction based on drive motor 1 and drive motor 2 direction.