As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, SELECTED ALL ANTI-ICE TO ON. GOT IMMEDIATE LEVEL 1 "ENG 2 A-ICE OFF" ALERT COMBINED WITH ENG 2 ANTI-ICE VALVE DISAGREE LIGHT ON ENG 2 A/I SWITCH. DIVERTED TO LAX AND LANDED WITHOUT INCIDENT. REMOVED AND REPLACED ANTI-ICE VALVE AND PRESSURE SWITCH, PER MM 30-22-04-4 -2 AND 30-22-00-5 2, OPS CHECK NORMAL. RAN NR 2 ENGINE TO PERFORM OPS CHECK OF ANTI-ICE VALVE PER JRH AND MM 30-22-00-5 2. OPS CHECK NORMAL.