PCM Idle Learn Procedure: Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

Make sure all electrical items (A/C, audio, lights, etc.) are off.
Reset the PCM with the HDS.
Turn the ignition switch to ON (II), and wait 2 seconds.
Start the engine. Hold the engine speed at 3, 000 RPM without load (in P or N) until the radiator fan comes on, or until the engine coolant temperature reaches 194°F(90°C).
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.