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 wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P1246GENERATOR LOAD INPUT FAILED
P1246GENERATOR LOAD INPUT HIGH / LOW / FAILED
P1246GENERATOR LOAD INPUT FAILED
Manufacturer communications
3Original wording in English
FORD, LINCOLN, MERCURY
BATTERY WARNING LAMP ON WITH A DIAGNOSTIC TROUBLE CODE P1246 (GENERATOR LOAD INPUT FAILED) IN THE POWERTRAIN CONTROL MODULE (PCM). *TT
FORD, LINCOLN, MERCURY
BATTERY LAMP ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P1246 UNDER INVESTIGATION (QSF). *TT
FORD
SOME VEHICLES MAY EXHIBIT THE CHARGING SYSTEM INDICATOR ILLUMINATED AT TIMES OR CONSTANTLY. THE CHECK ENGINE LAMP MAY ALSO BE ILLUMINATED WITH DIAGNOSTIC TROUBLE CODES P1244, P1245 OR P1246 (GENERATOR LOAD INPUT HIGH / LOW / FAILED). *TT
Check vehicle applicability
5A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | CROWN VICTORIA ↗ | 2003 |
| Ford | FOCUS ↗ | 2001 |
| Ford | FOCUS ↗ | 2000 |
| Lincoln | TOWN CAR ↗ | 2003 |
| Mercury | GRAND MARQUIS ↗ | 2003 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Alternator Load Input Failed
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.