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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 185 (Cellular System, Entertainment System And Navigation System) >> Diagnostic Information and Procedures >> DTC B124B: USB 1 Circuit >> Conditions for Setting the DTC
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Conditions for Setting the DTC

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

B124B 0B 

The human machine interface control module detects an excessive current condition on the USB 5 V circuit.

B124B 04 

The human machine interface control module does not detect the vehicle hub device.

B124B 11 

The human machine interface control module detects an additional hub device attached to the vehicle USB port.

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