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Home >> Buick >> 2017 >> Envision Base >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U1833: Lost Communication with Electronic Brake Control Module on Chassis Expansion CAN Bus >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U0121, U0129, U1833 U0121, U0129, U1833 - -
Ignition U0121, U0129, U1833 U0121, U0129, U1833 - -
Serial Data Communication Enable U1814, U2099 U0121, U0129, U1833 - -
Chassis High Speed GMLAN Serial Data (+) U0077* U0077* U0077* -
Chassis High Speed GMLAN Serial Data (-) U0077* U0077* U0077* -
Ground - U0121, U0129, U1833 - -
* Other DTCs may set with this fault.
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