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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 B124B: USB 1 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+ B124B, 2 B124B, 1 - -
USB Cable B124B B124B B124B -
Ground - 1 - -
1. Fault may affect one or more components, dependant on fault location
2. Fault affects multiple components, dependant on vehicle equipment