2005 TOYOTA AVENSIS diagram

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Page 3935 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual ±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±421
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
Refer to DTC P0200 on page 05±415 for the wiring diagram of the injector system.
Refer to DTC P0351 on pag

±
DIAGNOSTICS SFI SYSTEM(1AZ±FSE)
05±421
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
Refer to DTC P0200 on page 05±415 for the wiring diagram of the injector system.
Refer to DTC P0351 on page 05±439 for the wiring diagram of the ignition system.
CONFIRMATION DRIVING PATTERN
(a)Connect the hand±held tester to the DLC3.
(b)Record the DTC and freeze frame data.
(c)Use the hand±held tester to set to the check (test) mode (See page 05±294).
(d) Read the value on the misfire counter for each cylinder when idling. If \
the value is displayed on the
misfire counter, skip the following procedure of confirmation driving.
(e) Drive the vehicle several times with the engine speed, load and its surr\
ounding range shown with EN- GINE SPD, CALC LOAD in the freeze frame data or MISFIRE RPM, MISFIRE LOAD in\
the DATA LIST.
If you have no hand±held tester, turn the ignition switch OFF after the symptom is simulated once. Then\
re-
peat the simulation process again.
HINT:
In order to memorize the DTC of misfire, it is necessary to drive around M\
ISFIRE RPM, MISFIRE LOAD for
the following period of time in the DATA LIST. Take care not to turn the ignition switch OFF. Turning the igni-
tion switch OFF switches the diagnosis system from check (test) mode to no\
rmal mode. So all DTCs, etc.,
will be erased.
Engine SpeedTime
Idling3 minutes and 30 seconds or more
1,000 rpm3 minutes or more
2,000 rpm1 minutes and 30 seconds or more
3,000 rpm1 minute or more
(f) Check whether there is misfire or not by monitoring the DTC and the freeze fr\
ame data, and then, re- cord them.
(g) Turn the ignition switch OFF and wait at least for 5 seconds.
INSPECTION PROCEDURE
HINT:
If DTCs besides misfire are memorized simultaneously, first perform the troubleshooting for them.
Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for deter\
mining whether the vehicle
was running or stopped, the engine was warmed up or not, the air±fuel ra\
tio was lean or rich, etc. at
the time of the malfunction.
If the misfire does not occur when the vehicle is brought to the workshop,\
misfire can be confirmed by
reproducing the condition of the freeze frame data. Also, after finishing the repai\
r, confirm that there
is no misfire (See confirmation driving pattern).
When either of SHORT FT #1, LONG FT #1, SHORT FT #2 or LONG FT #2 in the freeze frame data
is over the range of 20 %, there is a possibility that the air±fuel ratio is inclining eit\
her to ºRICHº (±20
% or less) or ºLEANº (+20 % or more).
When COOLANT TEMP in the freeze frame data is less than 80 C (176 F), there is a possibility of
misfire only during warming up the engine.
If the misfire cannot be reproduced, the reason may be because of the dr\
iving the vehicle with lack
of fuel, the use of improper fuel, a stain on the ignition plug, etc.
Be sure to check the value on the misfire counter after the repair.