Toyota Celica 2005 Repair Manual page 792

DI−593
DIAGNOSTICS − ENGINE (2ZZ−GE)
3 Check for open and short in harness and connector between ECM and ETCS
fuse, ETCS fuse and battery (See page IN−30).
NG Repair or replace harness or connector.
OK
Check engine room R/B No. 1.
2005 CELICA (RM1131U)
791