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Home >> Chevrolet >> 2013 >> Spark LS, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U2099 >> Diagnostic Fault Information
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Ignition U2099* U0100-U02FF U0100-U02FF -
* Vehicle may not start.