Toyota ZZT230 series, Repair Manual

Page: 322 / 821

)
)
Dl-111
DIAGNOSTICS
-
ENGINE
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.
1
Check engine Idle speed.
PREPARATION:
(a)
Warm
up
engine to normal operating temperature.
(b) Switch
off all accessories.
(c)
Switch off alrconditioning.
(d)
Shift transmission into
BN•
or neutral position.
(e) Connect the 080 II scan tool or
TOYOTA
hand-held tester to
DLC3
on
the vehicle.
(f)
Using
SST,
connect terminals
TEt
and Et of the
DLC1.
CHECK:
Check
the difference of engine speed between the ones less
than
5 sec. and more than 5 sec. after
connect·
ing tenminals TEl and
E1
of the
DLC1.
OK:
Difference of engine speed:
Mora
than
100
Go to step 6.