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.
Manufacturer communications
2Original wording in English
FORD
Reported code forms P1406
VEHICLES WITH 5.4L ENGINES AND 9VZA-AH OR 9VZA-BL CALIBRATIONS MAY SET A MIL LIGHT WITH A DIAGNOSTIC TROUBLE CODE OF P1406 (DPFE DOWNSTREAM HOSE OFF OR PLUGGED). *TT
FORD
Reported code forms P1406
SOME VEHICLES WITH 5.4L ENGINES AND 9VZA-AH OR 9VZA-BL CALIBRATIONS MAY SET A MALFUNCTION INDICATOR LIGHT ON WITH A DIAGNOSTIC TROUBLE CODE OF P1406 (DPFE DOWNSTREAM HOSE OFF OR PLUGGED). *TT
Check vehicle applicability
1A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | ECONOLINE | 1999 |
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.
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.