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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 >> Radio Controls Malfunction (IOB) >> 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
Signal terminal 6 B123E 02, 1 B123E 01, 1 B123E 01, 1 -
Signal terminal 5 2 2 2 -
Signal terminal 7 3 3 3 -
signal terminal 8 3 3 3 -
Low Reference terminal 10 - 4 - -
1. Home, Seek Up, Seek Down, and/or Phone button will not function
2. Power Button will not function
3. Unable to adjust volume
4. All Radio Control buttons may not function