Timing relearn? That is a new one to me, have not run across this yet. Do you mean idle relearn? Or crankshaft relearn?

Here is the idle relearn process:
1.29.1.
Turn the ignition ON.
29.2. Turn the ignition OFF for 15 seconds.
29.3. Turn the ignition ON for 5 seconds.
29.4. Turn the ignition OFF for 15 seconds.
29.5. Start the engine in park/neutral.
29.6. Allow the engine to run until the engine coolant is above 85°C (185°F).
29.7. Turn the A/C ON for 10 seconds, if equipped.
29.8. If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive) for 10 seconds.
29.9. Turn the A/C OFF for 10 seconds, if equipped.
29.10. If the vehicle is equipped with an automatic transaxle, while pressing the brake pedal, place the transaxle in park/neutral.
29.11. Turn the ignition OFF. The idle learn procedure is now complete.

The crankshaft relearn process is requested by the OBD interface/tool, so I am not aware of that process. Far as I know from searches, one would need access to a tech2 in order to do the crankshaft relearn. According to the manuals, the crank relearn process is needed when the position sensor is replaced or if it is removed for any reason.