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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 515 (Hybrid/EV Cooling System) >> Diagnostic Information and Procedures >> DTC P0A81 or P0BC1 >> Circuit/System Verification

Circuit/System Verification

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.

Ignition ON, command the battery pack vent fan speed to 60 percent duty cycle with a scan tool. The battery pack vent fan should turn ON after approximately a 10 second delay.

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