Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Idle Learn
Whenever the throttle body and/or the engine control module (ECM) are replaced, the following idle learn procedure must be performed:
- Turn the ignition ON for 5 seconds.
- Initialize the idle speed control (ISC) using a scan tool.
- Initialize the ECM using the scan tool. This is for a replacement ECM only.
- Turn the ignition OFF for 10 seconds.
- Turn the scan tool OFF.
- Turn the ignition ON for 10 seconds.
- Turn the ignition OFF for 10 seconds.
- Start the engine in park/neutral.
- Allow the engine to run until the engine coolant is above 85°C (185°F).
- Turn the A/C ON.
- If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in drive (D).
- Turn the A/C OFF.
- If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in drive (D).
- Turn the ignition OFF. The idle learn procedure is complete.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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