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.
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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.
P1506IDLE AIR CONTROL OVER SPEED ERROR
P1506IDLE AIR CONTROL OVER SPEED ERROR
Manufacturer communications
3Original wording in English
FORD
SOME VEHICLES EQUIPPED WITH A 2.0L SPI ENGINE MAY EXHIBIT HIGHER THAN NORMAL IDLE SPEED, RUNS ROUGH AT IDLE AND / OR DIAGNOSTIC TROUBLE CODE P1506. *TT
FORD, LINCOLN, MERCURY
SOME VEHICLES MAY EXHIBIT A HOOT NOISE AT IDLE COMING FROM THE INDUCTION SYSTEM. POSSIBLE ADDITIONAL SYMPTOMS MAY INCLUDE DIAGNOSTIC TROUBLE CODE P1506 AND A HIGHER THAN NORMAL IDLE. *TT
FORD, LINCOLN
CONCERNS OF ENGINE CHECKLIGHT ON AND DTC P1506 ( IDLE AIR CONTROL OVER SPEED ERROR ) AND/OR FAST IDLE. *YC
Check vehicle applicability
13A 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 ↗ | 2001 |
| Ford | CROWN VICTORIA ↗ | 2000 |
| Ford | ESCORT ↗ | 1999 |
| Ford | EXPEDITION ↗ | 1998 |
| Ford | EXPEDITION ↗ | 1997 |
| Ford | F SERIES ↗ | 1998 |
| Ford | F SERIES ↗ | 1997 |
| Lincoln | NAVIGATOR ↗ | 1998 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Idle Air Control Overspeed Error
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.