Symptom Chart
Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods . for information about these practices.
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| System voltage high | Direct Current/Direct Current (DC/DC) Converter Control Module Wiring, terminals or connectors |
With HEV, REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module - Hybrid Electric Vehicle (HEV) . With PHEV, REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module - Plug-In Hybrid Electric Vehicle (PHEV) . |
| System voltage low or battery is discharged | Direct Current/Direct Current (DC/DC) Converter Control Module PCM Wiring, terminals or connectors |
With HEV, REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module - Hybrid Electric Vehicle (HEV) . With PHEV, REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module - Plug-In Hybrid Electric Vehicle (PHEV) . |
| Charging system warning indicator is never or always on | IPC PCM Wiring, terminals or connectors |
RETRIEVE Diagnostic Trouble Codes (DTCs) from all modules. If any charging system Diagnostic Trouble Codes (DTCs) are found, Refer to DTC Chart in this section. If no charging system Diagnostic Trouble Codes (DTCs) are found, REFER to: Instrumentation, Message Center And Warning Chimes . |