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Home >> Buick >> 2016 >> Cascada Base >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC B1400: Control Module Supply Circuit 2 >> Conditions for Setting the DTC
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Conditions for Setting the DTC

The control module or sensor detects a system voltage of less than approximately 9 V or greater than 15 V for approximately 5 s.