Toyota Camry Manual page 1321

DI–294
(1) Connect the OBD II scan tool or TOYOTA hand–held tester to the DLC3.
(2) Start and warm up the engine with all accessories switched OFF.
(3) Run the vehicle at 70 ∼ 90 km/h (43 ∼ 56 mph) for 3 min. or more.
(4) Idle the engine for about 2 min.
(5) Do steps (3) and (4) again.
(6) Stop at safe place and turn the ignition switch OFF.
(7) Do step (2) to (5) again.
(8) Check the READINESS TESTS mode on the OBD II scan tool or TOYOTA hand–held tester.
If COMPL is displayed and the MIL does not light up, the system is normal.
If INCMPL is displayed and the MIL does not light up, run the vehicle steps (2) to (6) from some times and
check it.
HINT:
INCMPL is displayed when either condition (a) or (b) exists.
(a) The system check is incomplete.
(b) There is a malfunction in the system.
If there is a malfunction in the system, the MIL light up after step (7) above is done.
(2trip detection logic)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand–held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air–fuel ratio lean or rich, etc.
at the time of the malfunction.
TOYOTA hand–held tester
1 Connect TOYOTA hand–held tester, and read value of EGR gas temperature.
PREPARATION:
(a) Connect the TOYOTA hand–held tester to the DLC3.
(b) Warm up the engine.
CHECK:
Read EGR gas temperature on TOYOTA hand–held tester during idling.
OK:
EGR gas temperature : 5 C (41 F) ∼ 150 C (302 F) (Not immediately after driving)
HINT:
If there is an open circuit, TOYOTA hand–held tester indicates 3.1 C (37.6 F).
If there is an short circuit, TOYOTA hand–held tester indicates 159.3 C (318.7 F).
NG
DIAGNOSTICS – ENGINE (1MZ–FE)
OK Go to step 4.
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