Toyota Celica 2005 Repair Manual page 1332

INSPECTION PROCEDURE
1 Check taillight relay (See page BE−18).
OK
2 Check wire harness and connector between taillight relay and Body ECU, battery
and taillight relay (See page IN−30).
OK
Proceed to next circuit inspection shown on
problem symptoms table (See page
DI−1124).
2005 CELICA (RM1131U)
DIAGNOSTICS − BODY CONTROL SYSTEM
NG Replace the taillight relay.
NG Repair or replace wire harness or connector.
1331
DI−1131