Toyota Celica 2005 Repair Manual page 236

5. OXYGEN SENSOR MONITOR (FRONT AND REAR O2S SYSTEM)
25 mph
(40 km/h)
(over 900 rpm)
Idling
Ignition OFF
Over 2 min.
(a) Preconditions
The monitor will not run unless:
MIL is OFF
S
(b) Drive Pattern
(1) Connect the OBDII scan tool to DLC3 to check monitor status and preconditions (refer to step
"a").
(2) Start the engine and allow it to idle for 2 minutes or more.
(3) Drive the vehicle at 25 mph (40 km/h) or more for at least 50 seconds.
(4) Stop the vehicle and allow the engine to idle for 40 seconds or more.
(5) Perform steps (3) and (4) ten times.
(6) Check the status of the readiness monitor on the scan tool display. If readiness status did not
switch to complete, ensure preconditions are met, turn the ignition off and then repeat steps (1)
and (5).
2005 CELICA (RM1131U)
DIAGNOSTICS
Once Twice
Over 40 sec.
Over 50 sec. 50 sec.
− ENGINE (1ZZ−FE)
3 times
40 sec. 40 sec.
50 sec.
235
DI−37
10 times
50 sec.
A18913