2012 Malibu Throttle Body Relearn Procedure

Learn how to perform a 2012 Malibu throttle body relearn procedure

Any time you disconnect battery power to the vehicle or the powertrain control module (PCM), you lose the baseline throttle body position. That can cause a no-start or rough idle condition. This post shows the procedure for performing a 2012 Malibu Throttle Body Relearn to re-establish the baseline and fuel trims to give you a smooth idle.

Follow this 7-step 2012 Malibu procedure

Learn Procedure – Performed after the ECM is programmed or replaced

Note: Do NOT perform this procedure if any trouble codes are stored or the check engine light is on.

1) Start the engine and let it idle for 3 minutes.
2) Turn the Ignition to OFF for 60 seconds.
3) Restart the engine and let it idle for 3 minutes. After the second 3-minute run time, the engine speed should return to normal.
4) If the idle does not return to normal, drive the vehicle at speeds above 44-MPH with multiple decelerations and periods of extended idling.

©, 2024 Rick Muscoplat