Diagnostic Fault Information
WARNING: This page is about a different car, the 2017 Cadillac ATS. 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 |
|---|---|---|---|---|
| F6RA (BCM 4) Fuse B+ | B2699 01, B2699 04 | B2699 01, B2699 04 | - | - |
| F43RA (BCM 3) Fuse B+ | B2575 01, B2575 04 | B2575 01, B2575 04 | - | - |
| Headlamp Low Beam Relay Control (with T4F) | B258A 02, B258A 04 | U1511 00, U1521 00, B258A 02, B258A 04 | U1511 00, U1521 00, B258A 01 | - |
| Headlamp High Beam Relay Control | B2580 02, B2580 04 | B2580 02, B2580 04 | B2580 01 | - |
| Low Beam Headlamp Control - Left (without T4F) | B2575 02 | B2575 01, B2575 04 | 1 | - |
| Low Beam Headlamp Control - Right (without T4F) | B2699 02 | B2699 01, B2699 04 | 1 | - |
| Low Beam Headlamp Control - Left (with T4F) | 1 | 1 | 1 | - |
| Low Beam Headlamp Control - Right (with T4F) | 1 | 1 | 1 | - |
| High Beam Headlamp Control - Left | 2 | 2 | 2 | - |
| High Beam Headlamp Control - Right | 2 | 2 | 2 | - |
| Turn Signal/Multifunction Switch Park Lamps ON Signal | 3 | B257A 00 | 3 | - |
| Turn Signal/Multifunction Switch Headlamps OFF Signal | B257A 00 | 3 | 3 | - |
| Turn Signal/Multifunction Switch Headlamps ON Signal | B257A 00 | 3 | 3 | - |
| Turn Signal/Multifunction Switch Flash To Pass Signal | B3806 00 | 3 | 3 | - |
| Turn Signal/Multifunction Switch High Beam Signal | B3650 08 | 3 | 3 | - |
| Headlamp Assembly - Left Ground | - | 1 | - | - |
| Headlamp Assembly - Right Ground | - | 1 | - | - |
| Turn Signal/Multifunction Switch Ground | - | 3 | - | - |
| 1. Headlamps Malfunction - Low Beam 2. Headlamps Malfunction - High Beam 3. Turn Signal/Multifunction Switch Malfunction |
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