Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
3Original wording in English
FORD, LINCOLN
CHARGING SYSTEM WARNING INDICATOR INTERMITTENTLY ON WITH POSSIBLE DIAGNOSTIC TROUBLE CODE (DTC) P0620. *TT
FORD, LINCOLN
DIAGNOSTIC TROUBLE CODE (DTC) P0320 WITH POSSIBLE DRIVEABILITY CONCERNS AND/OR CHARGING SYSTEM WARNING INDICATOR ON WITH POSSIBLE DTC P0620. *TT
BUICK, PONTIAC
SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE WILL NOT START OR WILL START INTERMITTENTLY AND, DEPENDING ON THE VEHICLE, THAT THE VOLTMETER GAUGE READING IS IN THE LOW RED ZONE OR THE DRIVER INFORMATION CENTER (DIC) IS DISPLAYING A CHECK CHARGE SYSTEM MESSAGE. IN ADDITION, DIAGNOSTIC TROUBLE CODE (DTC) P0620 MAY BE SET. NLM
Check vehicle applicability
8A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | LESABRE ↗ | 2001 |
| Buick | LESABRE ↗ | 2000 |
| Ford | EXPEDITION ↗ | 2004 |
| Ford | EXPEDITION ↗ | 2003 |
| Lincoln | NAVIGATOR ↗ | 2004 |
| Lincoln | NAVIGATOR ↗ | 2003 |
| Pontiac | BONNEVILLE ↗ | 2001 |
| Pontiac | BONNEVILLE ↗ | 2000 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Generator Control Circuit Malfunction
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.