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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 P1A4F, P1A50-P1A54, P1ADC, or P1ADD >> 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.

The drive motor control modules are internal to the drive motor generator power inverter module assembly and are not serviced separately. This fault is handled inside the drive motor control modules and no external circuits are involved.

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