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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 473 (Power Seat System) >> Diagnostic Information and Procedures >> DTC B3920 or B3921 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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B3920 01 

The voltage on any power rail 1 motor control circuit exceeds 2.78 V for 100 ms.

B3920 02 

The voltage on any power rail 1 motor control circuit is below 1.47 V for 100 ms.

B3921 01 

The voltage on any power rail 2 motor control circuit exceeds 2.78 V for 100 ms.

B3921 02 

The voltage on any power rail 2 motor control circuit is below 1.47 V for 100 ms.

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