Diagnostic Fault Information
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. 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 |
|---|---|---|---|---|
| Headlamp Relay Control | 1 | U1511 00, U1521 00 | 1 | - |
| Low Beam Headlamp Control - Left | U1511 00 | U1511 00 | 1 | B2575 00, B2575 04 |
| Low Beam Headlamp Control - Right | U1521 00 | U1521 00 | 1 | B2699 00, B2699 04 |
| Headlamp Assembly - Left Ground | - | 1 | - | - |
| Headlamp Assembly - Right Ground | - | 1 | - | - |
| 1. Headlamps Malfunction | ||||