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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 143 (Fixed And MOVEABLE Windows) >> Diagnostic Information and Procedures >> DTC B1956-B1959 >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

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B1956 54 

The driver window motor must be replaced before DTC can be cleared

B1956 55, B1957 55 

DTC will automatically clear after performing express function normalization procedure: Window Motor Programming - Express Function 

B1957 54 

The passenger window motor must be replaced before DTC can be cleared