ECM/PCM Idle Learn Procedure: Procedure
- Make sure all electrical items (A/C, audio, lights, etc.) are off.
- Reset the ECM/PCM with the HDS.
- Turn the ignition switch ON (II), and wait 2 seconds.
- Start the engine. Hold the engine speed at 3,000 RPM (min-1 ) without load (in Park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 90°C (194°F).
- Let the engine idle for about 5 minutes with the throttle fully closed.NOTE: If the radiator fan comes on, do not include its running time in the 5 minutes.
- Verify on the HDS data list that the idle learn procedure is complete.