Hi lilyeti,
if you do go the way of probing everything, I would suggest buying connector back probes - they make doing the job so much easier (something like ). Have you tried disconnecting and reconnecting the battery? if it's a SKREEM issue, that should reset the error, and the common symptom would be a start for a couple of seconds for 3 times, and then no crank. If you search the forum for no crank, you'll find tons of ideas and causes. Some of them have what the measured values/voltages are from each pin on the RCM, and how to check the CAN BUS.
Good Luck, keep us posted.
-Jerry