Toyota Celica 2005 Repair Manual page 757

DI−558
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand−held tester or the OBD II scan tool. Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help deter-
mine if the vehicle was running or stopped, if the engine was warmed up or not, if the air−fuel ratio was lean
or rich, as well as other data from the time when a malfunction occurred.
Hand−held tester:
1 Check operation of stop light.
PREPARATION:
Check if the stop lights come on and go off normally when the brake pedal is operated and released.
OK
2 Check STOP fuse.
PREPARATION:
Remove the STOP fuse from the instrument panel J/B.
CHECK:
Check the continuity of the STOP fuse.
OK:
Continuity
OK
3 Check stop light switch (See page BE−37).
OK
2005 CELICA (RM1131U)
DIAGNOSTICS − ENGINE (2ZZ−GE)
NG Check and repair stop light circuit (See page
BE−37).
NG Check for short in all harness and components
connected to STOP fuse.
NG Replace stop light switch.
756