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 |
|---|---|---|---|---|
| Trailer Lighting Control Module B+ | 1 | 1 | - | - |
| Stop Lamps/Center High Mounted Stop Lamp Control | B3884 02 | B3884 01, B3884 04 | B3884 01, B3884 04 | - |
| Trailer Backup Lamps Control | B3890 02 | B3890 04 | 1 | - |
| Trailer Stop Lamp Control | B3889 02 | B3889 04 | 1 | - |
| Trailer Turn Signal - Left Control | B3887 02 | B3887 04 | 1 | - |
| Trailer Turn Signal - Right Control | B3888 02 | B3888 04 | 1 | - |
| Trailer Fog Lamps Control | B3891 02 | B3891 04 | 1 | - |
| Trailer Tail Lamp - Left Control | B3885 02 | B3885 04 | 1 | - |
| Trailer Tail Lamp - Right Control | B3886 02 | B3886 04 | 1 | - |
| Trailer Lighting Control Module Ground | - | 1 | - | - |
| Trailer Connector Grounds | - | 1 | - | - |
| 1. Trailer Lamps Malfunction | ||||