As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - ON TAXI FOR FLIGHT 2501, RECEIVED A RIGHT ENGINE DEGRADE CAUTION MESSAGE. RETURNED TO THE GATE. MAINTENANCE REPLACED THE K20 AND K22 RELAYS ON PCB 3 IN THE JB-10 REF FIM 73-21-02. GROUND ENGINE AND OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. RELAY PART NUMBERS M210D4N AND M220D4N