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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Supplemental Restraints System) >> Diagnostic Information and Procedures >> DTC B10B4 or B120C >> Conditions for Setting the DTC

Conditions for Setting the DTC

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Any of the following conditions exist for 10 seconds:

B10B4 11

B120C 11

B10B4 15

B120C 15

B10B4 81 

The Restraints Control Module has received invalid serial data from the sensor.

B120C 81 

The Restraints Control Module has received invalid serial data from the sensor.