Toyota 1KZ-TE Repair Manual page 70

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0.25 sec.
OFF
0.25 sec.
0.5 sec. 1.5 sec.
4.5 sec.
ON
OFF
One Cycle
Start
FI0294
BR3589
Flashing
ON
OFF
0.13 Sec.
1KZ- -TE ENGINE SUP (RM790E)
DIAGNOSTICS
Normal
ON ON ON ON
OFF OFF
12 and 31
4.5 sec.
2.5
sec.
0.5 sec.
Repeat
A08718
FI3605
- - ENGINE
(3) Read the DTC from the check engine warning light.
As an example, the blinking patterns for codes; nor-
mal, 12 and 31 are as shown in the illustration.
HI NT:
If theTC is not output, check the diagnostic connector (DLC3)
circuit (See page DI -- 98).
(4) Check the details of the malfunction using the DTC
chart on page DI -- 14.
(5) After completing the check, disconnect terminals 13
(TC) and 4 (CG) and turn off the display.
HI NT:
In the event of 2 or more malfunction codes, the indication will
begin from the smaller numbered code to the larger in order.
NOTICE:
When simulating symptoms without a hand- -held tester to
check the DTCs, use the normal mode. For code on the
DTCs chart subject to "2 trip detection logic", turn the igni-
tion switch OFF after the symptom is simulated once. Then
repeat the simulation process again. When the problem
has been simulated twice, the check engine warning light
lights up and the DTCs are recorded in the engine ECU.
3. Check (Test) Mode:
INSPECT DIAGNOSIS
Hand--held tester only:
Compared to the normal mode, the check mode has a further
sensitivity to detect malfunctions.
Furthermore, the same diagnostic items which are detected in
the normal mode can also be detected in the check (test) mode.
(a) Check the DTC.
(1) Initial conditions.
Battery voltage 22 V or more
S
Throttle valve fully closed.
S
Transmission in the neutral position
S
(2) Turn the ignition switch OFF.
(3) Prepare the hand--held tester.
(4) Connect the hand--held tester to the DLC3.
(5) Turn the ignition switch ON and push the hand--held
tester main switch ON.
(6) Switch the hand--held tester from the normal mode
to the check (test) mode (Check that the check en-
gine warning light flashes.).
(7) Start the engine (The check engine warning light
goes off after the engine starts.).
(8) Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch ON until you have checked the
DTCs, etc.
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