Toyota ZZT230 series Repair Manual page 478

Check shift solenoid valve ST.
4
)
Repai r or repl a ce the sol e noi d wi r e.
)
-
AUTOMATIC TRANSAXLE (U341 El
DIAGNOSTICS
El e ctri c al check:
PREPARATI O N:
( b )
Jack up the vehicle.
(a)
Remove the oil pan.
Disconnect the solenoid connector.
(c)
CHECK:
Remove the shift solenoid valve
(d)
(a ) Measure resistance between solenoid connector and
body ground.
e
Connect positive
(b)
OK: ( a ) Resi s tance: 11 -15 nat
tor, negative
(b) The sol e noi d makes an operat i n g noi s e.
Mechani c al check:
PREPARATI O N:
( b )
(a) Jack up the vehicle.
Remove the oil pan.
Disconnect the solenoid connector.
(c)
CHECK:
(d) Remove the shift solenoid valve
490
(a) Applying
( b )
check that the solenoid varves do not leak air.
When battery positive voltage is supplied to the shift sole­
OK: (b) Sol e noi d val v e does not l e ak ai r .
noid valves, check that the solenoid valve opens.
(a) Sol e noi d val v e opens.
8 I
Repl a ce 1he sol e noi d val v e.
ST.
(£l
lead to terminal of solenoid connec­
lead to solenoid body.
( 6 8 "F)
20 ·c
ST.
71
kPa (5 kgf/cm2,
psi) of compressed air,
01-267