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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1620 (Engine Cooling System - Hybrid) >> Diagnostic Information and Procedures >> DTC P0A81 or P0BC1 >> Conditions for Setting the DTC >> P0A81

Conditions for Setting the DTC: P0A81

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fan control signal monitor voltage to the drive motor generator battery control module is greater than 2.3 V or less than 0.5 V for 5 seconds.