Toyota ZZT230 series Repair Manual page 394

DTC
DTC
DTC
CIRCUIT DESCRIPTION
Shifting from 1st to 0/D i
SL2 controlled by ECM. If
trols the remaining normal shift solenoid valve to allow the vehicle
tion).
DTCNo.
nold 1/8lves
The ECM checks
)
P0753
(a) When the
(b)
P0758
than3
nokl valve 54 Citct.llt wh&n it
The
The ECM
tected.
P0768
(a) When the
8 n or less and
(b)
Is 1 00 kQ or more and is counted.
HINT:
is
Check the shift solenoid valve SL 1 when DTC P0753 i
P0758 u tpu
o
)
P0753 Shift Solenoid A Electrical Malfunction
(Shift Solenoid Valve SL 1 )
Shift Solenoid B Electrical Malfunction
P0758
(Shift Solenoid Valve SL2)
P0768 Shift Solenoid D Electrical Malfunction
(Shift Solenoid Valve
s performed in combination with ON and OFF of the shift solenoid valves SL 1 and
an open or short circuit occurs in either of the shift solenoid valves, the ECM con­
DTC Detecting Condition
lor an open or short
solenoid Is energized. the
SL 1 SL2.
and
solenoid Is not energized,
When the
%.
ECM checks for an open or short
records
changes.
DTC P0768 if condition
solenoid Is
energized, the solenoid resistance Is
solenoid iS not ener�ed, the solenoid resistance
Is counted.
When the
t
and check shift solenoid valve
the
-
DIAGNOSTICS
AUTOMATIC TRANSAXLE (U240E)
circuit
in the shift sol&-
duty ratio exceed 75
the duty
ratio is less
in the shift sole-
•Open
circuit
Shift
•
•ECM
(a) or {b) is de-
s output, check t h
when
84 OTC P0768
S4)
to be operated smoothly (Fail safe
Trouble Area
shift
or short In solenoid valve SLt/Sl21S4
solenoid valve
SL 1/S1.21S4
shift solenoid valve SL2
e
is output.
Dl-183
lunc·
circuit
h
w en
DTC