Data Link Communication DTCS
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 GMC C3500 HD, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DATA LINK COMMUNICATION DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC U1000 & U1255 | Critical Operating Parameter Has Not Been Associated |
| DTC U1001-U1254 | Module U1XXX Error |
| DTC U1300, U1301 & U1305 | Class 2 Serial Data Circuit Voltage High/Low |