Toyota Hilux Surf 1993 Owner's Manual page 327

AT–130
Terminal
AUTOMATIC TRANSMISSION
Measuring condition
N position
Except N position
2 position
Except 2 position
L position
Except L position
Transfer shift position H2 or H4
Transfer shift position L4
Fluid temp. 20E C (68E F)
2. INSPECT SOLENOID
3. CHECK SOLENOID SEALS
If there is foreign material in the solenoid valve, there will
be no fluid control even with solenoid operation.
– Troubleshooting (Electronic Control System)
(a) Disconnect the connector from ther ECM.
(b) Measure the resistance between S,, S2, SL, S4 and
ground.
Resistance: 11–15
(c) Apply battery positive voltage to each terminal. Check
that an operation noise can be heard from the solenoid.
(a) Check No. 1, No.2 and No.4 solenoid valves.
Check that the solenoid valves do not leak when
low–pressure compressed air is applied.
When supply battery positive voltage to the
solenoids, check that the solenoid valves open.
(b) Check the lock–up solenoid valve.
Applying 490 kPa (5 kgf/cm2, 71 psi) of com–
pressed air, check that the solenoid valve opens.
When supply battery positive voltage to the
solenoid, check that the solenoid valve does not
leak the air.
Voltage (V)