Toyota Celica 2005 Repair Manual page 1384

INSPECTION PROCEDURE
1 Check light sensor (See page BE−18).
OK
2 Check wire harness and connector between light sensor and body ECU (See
page IN−30).
OK
Replace the body ECU.
2005 CELICA (RM1131U)
DIAGNOSTICS − BODY CONTROL SYSTEM
NG Replace the light sensor.
NG Repair or replace wire harness or connector.
1383
DI−1183