Throttle Body Relearn Procedure

1. Turn ignition off for 10 seconds.
2. Turn ignition on, engine off.
3. Ensure these engine operating parameters are met before proceeding:
   • ECT is 41-212°F (5-100°C).
   • IAT is more than 41°F (5°C).
   • Battery voltage is more than 10 volts.
   • Accelerator pedal angle is less than 14 degrees.
4. Leave ignition on for one minute with engine off.

The ECM will start at 29 seconds to cycle the throttle plate from rest position to full closed, then from the full closed position to around 14 percent. This will take about 3 seconds. The ECM will then return the throttle to the rest position. During this throttle plate cycle, the ECM will have learned the lower and rest position TP sensor values, actuator motor torque to overcome spring pressure as well as both spring return rates.