LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communications - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC U18DC >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U18DC, U0121 U18DC, U0121 - -
Ignition U18DC, U0121 U18DC, U0121 - -
Serial Data Communication Enable U1814, U2099 U18DC, U0121 - -
High Speed GMLAN Serial Data (+) U0073* U18DC, U0121 U0073* -
High Speed GMLAN Serial Data (-) U0073* U18DC, U0121 U0073* -
Ground - U18DC, U0121 - -
* Other DTCs may set with this fault.
scientia non olet · About LEMON Manuals