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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Hybrid Energy Storage System) >> Diagnostic Information and Procedures >> DTC P0ABB, P0ABC, or P0ABD >> Circuit/System Verification

Circuit/System Verification

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.
  1. Ignition ON, engine OFF, verify that the hybrid battery pack calculated voltage parameter and the hybrid battery terminal voltage parameter are greater than 169 volts and less than 408 volts.
  2. Ignition ON, engine OFF, verify that the hybrid battery pack calculated voltage and the hybrid battery pack terminal voltages are within 50 volts of each other.
  3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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