Diagnostic Code Index
WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | control Module Has Detected An Internal Malfunction |
| DTC B1004 | B1004: Keep Alive Memory (KAM) Reset |
| DTC B1007 | B1007: EEPROM Write Error |
| DTC B1009 | B1009: EEPROM Checksum Mismatch/Error |
| DTC U0001 | High Speed CAN Communication Bus |
| DTC U0073 | U0073: High Speed Communication Bus |
| DTC U0100-U0299 | A Control Module Is Not Communicating |
| DTC U1000 and U1255 | U1000: Class 2 Data Link U1255: Loss of Class 2 Communication |
| DTC U1001-U1254 | A Control Module Is Not Communicating |
| DTC U1300, U1301, or U1305 | U1300: Class 2 Data Link Low U1301: Class 2 Data Link High U1305: Class 2 Data Link High or Low |
| DTC U1500 | U1500: Graphical Interface Communication Malfunction |
| DTC U2100 | U2100: Controller Area Network (CAN) Bus Communication |
| DTC U2105-U2199 | U2105: Lost Communications With Engine Control System U2107: Lost Communications With Body Control System U2108: Lost Communications With ABS/TCS Control System |