Toyota Celica 2005 Repair Manual page 326

1 Are there any other codes (besides DTC P0133) being output?
PREPARATION:
(a) Connect the hand−held tester or the OBD II scan tool to the DLC3.
(b) Turn the ignition switch ON and push the hand−held tester or the OBD II scan tool main switch ON.
(c) When using hand−held tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC
INFO / CURRENT CODES.
CHECK:
Read the DTCs using the hand−held tester or the OBD II scan tool.
RESULT:
P0133 and other DTCs
NOTICE:
If any other codes besides P0133 are output, perform the troubleshooting for those DTCs first.
A
2005 CELICA (RM1131U)
DIAGNOSTICS
Display (DTC output)
P0133
− ENGINE (1ZZ−FE)
B Go to relevant DTC chart (See page DI−42).
325
Proceed to
A
B
DI−127