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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 222 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P1AE8, P1AE9, P1AEA, or P1AEB >> Circuit/System Description

Circuit/System Description

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 drive motor generator power inverter module (PIM) contains two motor control modules (MCM). Each MCM monitors its internal high voltage sensor for correct operation.