Toyota ZZT230 series, Repair Manual

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DIAGNOSTICS
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AUTOMATIC TRANSAXLE
4 Check shift solenoid valve ST.
Electrical check:
PREPARATION:
(a) Jack up the vehicle.
(b)
Remove the oil pan.
(c) Disconnect the solenoid connector.
(d) Remove the shift solenoid valve
ST.
CHECK:
01-267
(a) Measure resistance between solenoid connector and
body ground.
(b) Connect positive (£l
lead to terminal of solenoid connec­
tor, negative
e
lead to solenoid body.
OK: (a) Resistance: 11 -15 nat
20 ·c
(68 "F)
(b) The solenoid makes an operating noise.
Mechanical check:
PREPARATION:
(a) Jack up the vehicle.
(b)
Remove the oil pan.
(c) Disconnect the solenoid connector.
(d) Remove the shift solenoid valve
ST.
CHECK:
(a) Applying
490
kPa (5 kgf/cm2,
71
psi) of compressed air,
check that the solenoid varves do not leak air.
(b)
When battery positive voltage is supplied to the shift sole­
noid valves, check that the solenoid valve opens.
OK: (b) Solenoid valve does not leak air.
(a) Solenoid valve opens.
8
Replace 1he solenoid valve.
Repair or replace the solenoid wire.