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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC B124C: USB 2 Circuit (IO5/IO6) >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ B124C, 1, 3 B124C, 1, 2 - -
USB Cable - USB receptacle X2 B124C, 1 B124C, 1 B124C, 1 -
USB Cable - USB receptacle X3 4 4 4 -
Ground - 1 - -
1. Front console and display/controls USB ports inoperative
2. Fault may affect one or more components, dependant on fault location
3. Fault affects multiple components, dependant on vehicle equipment
4. Single USB port behind display/controls inoperative