Toyota Celica 2005 Repair Manual page 1337

DI−1136
Daytime Running Light No. 2, No. 3, No. 4 Relay Circuit
CIRCUIT DESCRIPTION
When the light control switch is set to OFF or TAIL after the following conditions are satisfied simultaneously
with the ignition switch ON, the headlight comes on by control of the body ECU.
The parking brake switch is OFF.
S
The generator is ON (Engine running)
S
2005 CELICA (RM1131U)
DIAGNOSTICS − BODY CONTROL SYSTEM
1336
DIAJI−03