Symptom Chart - BLIS®
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Possible Sources | Action |
|---|---|---|
| A module does not respond to the diagnostic scan tool | Fuse Communication concern Wiring, terminals or connectors Module |
REFER to: Communications Network . |
| The BLIS® is inoperative or does not function correctly | Refer to the Pinpoint Test | GO to Pinpoint Test A |
| The BLIS® has poor or inconsistent performance | Refer to the Pinpoint Test | GO to Pinpoint Test A |
| The BLIS® message center warnings are not displayed and the exterior mirror BLIS®/ CTALED does not illuminate | Refer to the Pinpoint Test | GO to Pinpoint Test A |
| An exterior mirror BLIS®/ CTALED is always on | Refer to the Pinpoint Test | GO to Pinpoint Test C |
| An exterior mirror BLIS®/ CTALED does not illuminate | Refer to the Pinpoint Test | GO to Pinpoint Test D |
| The IPC message center displays a blocked sensor message | Refer to the Pinpoint Test | GO to Pinpoint Test E |
| The BLIS® cannot be turned off in the message center | Refer to the Pinpoint Test | GO to Pinpoint Test F |