Diagnostic Fault Information
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| 12 V Reference | U0126 00, C0710 4B | U0126 00 | - | C0710 00 |
| High Serial Data | U0077 00, U0126 00, U0151 00, U0403 71 | U0077 00, U0126 00, U0151 00, U0403 71 | U0077 00, U0403 71 | C0710 71, C0710 5A |
| Low Serial Data | U0077 00, U0126 00, U0151 00, U0403 71 | U0077 00, U0126 00, U0151 00, U0403 71 | U0077 00, U0403 71 | C0710 71, C0710 5A |
| Ground | - | U0126 00 | - | - |