If you lost power to everything, make sure the battery is good. Also, I'm not sure how pulling either of the relays you mentioned would reset the PCM. That makes no sense to me. If the battery is good and fully charged, make sure terminals are clean and tight. Also, check main fuses under the hood in the power distribution box.
Let me know what you find.
Thursday, December 3rd, 2015 AT 6:25 PM