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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Wiring Systems And Power Management - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B1B15 >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

B1B15 2A, B1B15 11, B1B15 15 

The S38 On/Off Vehicle Switch Signal Voltage circuit 5723 to the K9 Body control Module will be ignored until the fault is corrected and the Passive Start Switch Signal 2 Input circuit 3558 to the K56 Serial Data Gateway Module (Back-Up Power mode Master) will take over to power mode the vehicle.

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