Symptom Chart: Charging System
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for more information.
Symptom Chart: Charging System
| Condition | Possible Sources | Actions |
|---|---|---|
| System voltage high | Refer to the Pinpoint Test | GO to Pinpoint Test A . |
| System voltage low or battery is discharged | Refer to the Pinpoint Test | GO to Pinpoint Test B . |
| The generator is noisy | Refer to the Pinpoint Test | GO to Pinpoint Test F . |
| Radio interference | Refer to the Pinpoint Test | GO to Pinpoint Test G . |
| Charging system warning indicator is never/always ON | Wiring, terminals or connectors IPC Generator PCM |
RETRIEVE DTCs from all modules. If any charging system DTCs are found, Refer to DTC Charts . If no charging system DTCs are found, REFER to Instrumentation, Message Center, and Warning Chimes . |
| Load Shed Message Displays in message center and/or centerstack infotainment display | Normal operation Audio system Battery BCM Fuses Generator Wiring, terminals or connectors |
GO to Pinpoint Test K . |
| Battery Saver - System Off displays in centerstack infotainment display | Normal operation Audio system Battery BCM Fuses Generator Wiring, terminals or connectors |
GO to Pinpoint Test K . |