FixVault
Home
›
Buick
›
2012
›
Regal Base
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Data Communications System
›
Diagnostic Information and Procedures
›
DTC U2099
›
Diagnostic Fault Information
Diagnostic Fault Information
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Serial Data Communication Enable
U2099, U0100-U02FF
1
U0100-U02FF
U0100-U02FF
2
-
1
Vehicle will not start.
2
History only. If cleared the DTC will return after several ignition cycles.