1999 TOYOTA CAMRY Service Repair Manual

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Page 3777 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 7 of 23
DRIVE PATTERN NUMBER*
O2S/AF
MODELDRIVEEGRCATALYSTEVAPSENSORHTRMODELYEARMODELENGINEDRIVETRAINCATEGORY1234567891011
ECHO1

Page 3778 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 8 of 23
DRIVE PATTERN NUMBER*
O2S/AF
MODELDRIVEEGRCATALYSTEVAPSENSORHTRMODELYEARMODELENGINEDRIVETRAINCATEGORY1234567891011
ECHO1

Page 3779 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 9 of 23
DRIVE PATTERN NUMBER*
O2S/AF
MODELDRIVEEGRCATALYSTEVAPSENSORHTRMODELYEARMODELENGINEDRIVETRAINCATEGORY1234567891011
ECHO1

Page 3780 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 10 of 23
DRIVE PATTERN NO. 1: EGR Monitor (All Except 1FZ±FE Engine)
Warm up
10 min
43 ± 56 mph
(70 ± 90 km/h)
Idling
IG SW o

Page 3781 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 11 of 23
DRIVE PATTERN NO. 2: EGR Monitor (for 1FZ±FE Engine)
43 ± 56 mph
(70 ± 90 km/h)
Idling
IG SW off
3 ± 5 min 3 ± 5 m

Page 3782 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 12 of 23
DRIVE PATTERN NO. 3: Catalyst Monitor (O2S Type)
40 ± 50 mph
(64 ± 88 km/h)
35 ± 45 mph
(56 ± 72 km/h)
Idling
IG SW

Page 3783 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 13 of 23
DRIVE PATTERN NO. 4: Catalyst Monitor (AF Sensor Type)
IAT < 50F = 7 min
IAT > 50F = 3 min
(a)
40 ± 50 mph
(64 ± 88

READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 13 of 23
DRIVE PATTERN NO. 4: Catalyst Monitor (AF Sensor Type)
IAT < 50F = 7 min
IAT > 50F = 3 min
(a)
40 ± 50 mph
(64 ± 88 km/h)
Idling
IG SW off
16 min
(b) 35 ± 45 mph
(56 ± 72 km/h)
Warm up
ECT.176F
Preconditions
The monitor will not run unless:
MIL is OFF.
ECT (Coolant Temp) is 176F (80C) or greater.
IAT (Intake Air) is 14F (±10C) or greater.*
* For 2002 MY and later vehicles: The readiness test can be completed in cold ambient conditions
(less than 14F / ±10C), if the drive pattern is repeated a second time after cycling the ignition OFF.
Drive Pattern Procedure
Connect the OBDII Scantool to DLC3 to check monitor status and preconditions.
Note the IAT (Intake Air) value during engine startup. The driving time must be adjusted
during step ªaº based upon IAT (Intake Air) value at startup.
a. Drive the vehicle at 40 ± 55 mph (64 ± 88 km/h) for the time described below:
If IAT (Intake Air) was less than 50F (10C) when the engine was started,
drive for 7 minutes.
If IAT (Intake Air) was greater than 50F (10C) when the engine was started,
drive for 3 minutes.
b. Drive the vehicle allowing speed to fluctuate between 35 ± 45 mph (56 ± 72 km/h)
for about 16 minutes.
NOTE:
Drive with smooth throttle operation.
Avoid sudden acceleration.
Avoid sudden deceleration as much as possible with the throttle fully closed.
If readiness status does not switch to ªcomplete,º ensure preconditions are met, turn the
ignition OFF, then repeat steps ªaº and ªb.º
NOTE:
The readiness status may not switch to ªcompleteº after the first drive pattern trip if a
Pending Code has been set (first trip for a two±trip DTC).
Pending Codes are available from the DTC Info Menu in Enhanced OBDII.
Pending Codes indicate a POTENTIAL problem was detected. A second trip is
needed to confirm the DTC prior to diagnosis.
Once a second trip is completed, a current DTC will be stored. Readiness
Monitor
Drive
Patterns:
Catalyst
Monitors
(Continued)

Page 3784 of 4592

TOYOTA CAMRY 1999 Service Repair Manual READINESS MONITOR DRIVE PATTERNS ± EG003-02 RevisedMarch 29, 2002
Page 14 of 23
DRIVE PATTERN NO. 5: EVAP Monitor
(Internal Pressure Monitor/Non±Intrusive Type)
45 mph
(72 km/h)
25 mph
(40 km/h)
Id

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