fiat throttle relearn

How to Perform a Throttle Body Relearn on Your FIAT

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How to Perform a Throttle Body Relearn on Your FIAT

If you’ve recently replaced the throttle body on your FIAT vehicle, it’s critical to perform a throttle body relearn procedure to ensure your car runs properly. Without this relearn, your FIAT may not even start. Don’t worry though – the process is straightforward and can be done at home with the right tools.

What FIAT Models Require a Throttle Body Relearn?

Based on the information available, a throttle body relearn is necessary on the following FIAT models after replacing the throttle body:

  • FIAT 500
  • FIAT 500X

Other FIAT models may also require this procedure – consult your owner’s manual or a certified FIAT mechanic to confirm.

Performing the Relearn: Two Methods

There are two ways to do the throttle body relearn on a FIAT:

  1. Using a professional diagnostic scan tool
  2. Using a specific pedal press sequence

Method 1: Scan Tool Relearn

The most reliable way to perform the relearn is with a compatible diagnostic scan tool like the Snap-on MODIS or SOLUS. Here’s how:

  1. Connect the scan tool and navigate to the “Engine” module.
  2. Identify the specific ECU.
  3. Locate the “Throttle Body Self-Learn” function under “System Tests.”
  4. With the ignition on but engine off, initiate the self-learn.
  5. The scan tool will cycle the throttle body open and closed a few times.
  6. Wait for a “pass” result to confirm the relearn is complete.

Method 2: Pedal Press Relearn

If you don’t have access to a professional scan tool, you can try this pedal press sequence to relearn the throttle body:

  1. Turn the ignition on but do not start the engine.
  2. Slowly press the accelerator pedal to the floor and release.
  3. Wait 10 seconds.
  4. Press the accelerator pedal to the floor and hold for 10 seconds.
  5. Release the pedal and start the engine.
  6. Let the engine idle and warm up, then drive the vehicle normally.

The ECU should relearn the throttle body position from this sequence. If the check engine light remains on or the car doesn’t run properly, repeat the process or have the relearn performed professionally.

By following these steps specific to your FIAT model, you can successfully complete a throttle body relearn and get your vehicle running smoothly again after a throttle body replacement. While it’s a fairly straightforward process, don’t hesitate to consult a professional mechanic if you need assistance.