Diagnostic Fault Information
WARNING: This page is about a different car, the 2016 Cadillac CTS. 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 |
| B+ |
U1804 |
U1804 |
- |
- |
| Low Speed GMLAN Serial Data |
U0073, U0078* |
U1804 |
U0073, U0078* |
- |
| Ground |
- |
U1804 |
- |
- |
| *Scan tool does not communicate with most low speed GMLAN device |