Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC U2099
| Circuit |
Short to Ground |
Open/High Resistance |
Short to Voltage |
Signal Performance |
| High Speed GMLAN Serial Data Wake Up |
U2099, U0100-U02991 |
U0100-U0299 |
U0100-U02992 |
- |
1
Vehicle will not start.
2
May be history only. If cleared the DTC should return after several ignition cycles. |