Toyota ZZT230 series Repair Manual page 378

Evaluation:
H
the measured
H
the measured
If
pressure Is low
If pressure Is low
'
.._m
values at all position are higher
are
value& at all position lower
the
in D position only
position
in the
R only
DIAGNOSTICS
AUTOMATIC TRANSAXLE (U240El
• Throttle valve defective
• Regulator valve defective
• Throttle valve defective
• Regulator valve defective
•Oil pump defective
• OlD direct clutch defective
• D position circuit fluid leakage
•Forward clutch defective
A
• position circuit fluid leakage
&
• Direct cl.J t ch defective
MANUAL SHI FT I N G TEST
• 1
st reverse brake defective
9.
HINT:
With this test, it can be determined whether the trouble is within
the electrical circuit or is a mechanical problem in the transaxle.
Disconnect the solenoid wire.
(a)
Inspect the manual driving operation.
(b)
Check that the shift and gear positions correspond with
the table below.
While driving. shift through the L, 2 and 0 positions.
Check that the gear change corresponds to the shift posi­
tion.
Position
Shift
L
HINT:
If the L, 2 and D position gear positions are difficult to positions
are difficult to distinguish, do the following read test.
If any abnormality is found in the above test. the problem is in
the transaxle itself.
Connect the solenoid wire.
(c)
Cancel out DTC (See page Dl-157).
( d)
D/-167
Possible cause
Gear Position
Reverse
Pawl Lock