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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures >> Diagnostic Information And Procedures >> DTC B123E: Radio Keypad Button Signal Circuit >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Signal B123E 02 B123E 01 B123E 01 -
Ground Return Terminal 2 - 1 - -
Low Reference Terminal 8 - 1 - -
1. Radio Control buttons inoperative
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