Idle Speed/Throttle Actuator - Electronic: Service and Repair

IDLE LEARN PROCEDURE

Procedures 1 and 2 listed below needs to be performed whenever the following occurs:
- The battery cables are disconnected.
- The ECM is disconnected or replaced.
- The fuse that supplies ignition 1 or battery positive voltage to the ECM is removed.
- The IAC valve is removed or replaced.
- There is an IAC system fault.

Procedure 1
1. Turn OFF all accessories.
2. Start the engine.
3. Allow the engine to idle for 10 seconds.
4. Turn OFF the ignition for 1 minute.
5. Perform Procedure 2.

Procedure 2 - Automatic Transmission
1. Allow the engine to run until the engine coolant temperature is more than 85°C (185°F).
2. Allow the engine to idle for 10 minutes.
3. Turn ON the A/C for 1 minute, if equipped.
4. Turn OFF the A/C for 1 minute, if equipped.
5. Apply the parking brake and place the transmission into drive (D).
6. Allow the engine to idle for 1 minute.
7. Turn ON the A/C for 1 minute, if equipped.
8. Turn OFF the ignition. The idle learn procedure is complete.

Procedure 2 - Manual Transmission
1. Allow the engine to run until the engine coolant temperature is more than 85°C (185°F).
2. Allow the engine to idle for 10 minutes.
3. Turn ON the A/C for 1 minute, if equipped.
4. Turn OFF the ignition. The idle learn procedure is complete.