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.
2006 Chevrolet Optra LS, AutomaticFACTORY OEM SERVICE PROCEDURE
Idle Learn Procedure
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) motor using the 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.
Factory Service Tools
Use the Manual With the Right Hardware
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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.