Check Solenoid Seals; Inspect Throttle Position Sensor; Check The Lock-Up Solenoid Valve - Toyota LAND CRUISER Service Manual Supplement

AT-40
AUTOMATIC TRANSMISSION (STATION WAGON) - TROUBLESHOOTING
3.

CHECK SOLENOID SEALS

If there is foreign material in the solenoid valve, there will
be no fluid control even with sloenoid operation.
(a) Check No.1, No.2 and timing solenoid valves.
• Check that the solenoid valves do not leak when low-
pressure compressed air is applied.
• When supply battery voltage to the solenoids, check
that the solenoid valves open.
(b) Check the lock-up solenoid valve.
• Apply 490 kPa (5 kgf/cm
check that the solenoid valve opens.
• When supply battery voltage to the solenoid, check
that the solenoid valve does not leak the air.
If malfunction is found during voltage inspection (step
1.), inspect the components listed below.
4.

INSPECT THROTTLE POSITION SENSOR

(a) Using an ohmmeter, check the resistance between termi-
nals.
(1FZ-FE)
(1HD-T)
(b) (1HD-T engine)
When supply 5V to the between VC terminal and E
minal, using a voltmeter, check the voltage between ter-
minals.
2
, 71 psi) of compressed air,
ter-
2