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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 490 (Hybrid/EV Control System) >> Diagnostic Information and Procedures >> DTC P0A1B or P0A1C >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

This is a fault detection of the drive motor generator power inverter module's internal motor control modules. This fault is handled inside the drive motor generator power inverter module, no external circuits are involved. The motor control modules are part of the drive motor generator power inverter module, and are not serviced separately.

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