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Home >> Buick >> 2018 >> Cascada Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> Radio Controls Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Radio Controls B+ U0257, 1, 2, 3 2, 4 - -
Radio Display B+ U0257, 1, 2, 3 U0257, 1, 3, 4 - -
Remote Enable Circuit U0257, 1, 4 U0257, 1, 4 - -
Radio Controls Reset U0257, 1, 2 - - -
Radio Controls Wakeup - U0257, 1, 2 U0257, 1, 2 -
Radio Display Reset U0257, 1 - - -
CGI Serial Data + U0257, 1, 2 U0257, 1, 2 U0257, 1, 2 -
CGI Serial Data - U0257, 1, 2 U0257, 1, 2 U0257, 1, 2 -
Radio Controls ground - 2 - -
Radio Display Ground - - - -
1. Display Inoperative
2. Controls inoperative
3. Fault affects multiple components, dependant on vehicle equipment additional communication DTCs may be set
4. Fault may affect one or more components, dependant on fault location