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All Ford fault codes

Idle and throttle

P1505 Idle air control at its adaptive limit

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P1505 means: Idle air control at its adaptive limit. The computer holds the idle speed steady with the throttle or an idle valve. OK to drive, but have it checked soon. The repair usually costs about €30–350 in Estonia. The most common cause: dirty throttle body or idle valve.

Is it safe to drive?OK to driveOK to drive, but have it checked soon.
Typical repair cost€30–350parts and labour in Estonia

What it means

The computer holds the idle speed steady with the throttle or an idle valve. The speed is wrong or can't be held steady.

This is a make-specific code (Ford). The exact meaning can vary by model and year.

What you may notice

  • Idle hunts or is too high or low
  • The engine may stall
  • Engine light on

What could be wrong

  1. 1Dirty throttle body or idle valve
  2. 2Air leak
  3. 3Throttle needs relearning
  4. 4Faulty idle valve

Repair difficulty: Easy

What you can check yourself

Cleaning the throttle body often helps. After cleaning or disconnecting the battery, the throttle often has to be relearned. You can do the simpler checks yourself.

How we fix it

  1. We clean and relearn the throttle body
  2. We check for air leaks
  3. We replace the idle valve or throttle body

Standard SAE description: Idle Air Control System at Adaptive Clip

This code usually comes with: Check engine lightSee what the light means →

Related symptoms: Rough idle or engine stalling

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

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Questions

What does fault code P1505 mean?

Idle air control at its adaptive limit. The computer holds the idle speed steady with the throttle or an idle valve. The speed is wrong or can't be held steady.

Can I drive with code P1505?

OK to drive, but have it checked soon.

How much does it cost to fix P1505?

Roughly €30–350 in Estonia. The price depends on exactly what has failed and on the car.

How is P1505 fixed?

We clean and relearn the throttle body. We check for air leaks. We replace the idle valve or throttle body.

Related codes

P1506Idle speed too high (overspeed)P1504Idle air control valve circuit faultP2103Throttle actuator: signal or voltage too high ("A")P2104Throttle actuator: engine power limited by the computer (forced idle)P2105Throttle actuator: engine power limited by the computer (engine shut down)P0124Throttle position sensor: signal drops out at times ("A")P1545Throttle valve control fault

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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