2 Position Test (A340H) - Toyota Hilux Surf 1993 Owner's Manual

AT–138
AUTOMATIC TRANSMISSION
2. 2 POSITION TEST
Shift into the 2 position and, while driving with the acceler–
ator pedal held constantly at the full throttle valve open–
ing position, push in one of the pattern selectors and check
on the following points.
(a) Check to see that the 1–2 up–shift takes place and
HINT:
(b) While running in the 2 position and 2nd gear, release
EVALUATION
If there is no engine braking effect:
– Troubleshooting (Mechanical System Tests)
(c) Run at the D position lock–up or O/D gear and check
for abnormal noise and vibration.
HINT: The check for the cause of abnormal noise and
vibration must be made with extreme care as it could
also
be due to loss of balance in the propeller shaft, differ-
en–
tial, torque converter clutch, etc.
(d) While running in the D position, 2nd, 3rd and O/D
gears, check to see that the possible kick–down ve–
hicle speed limits for 2–1, 3–) 2 and O/D–3
kick–downs conform to those indicated on the auto–
matic shift schedule.
(e) Check for abnormal shock and slip at kick–down.
(f) Check for the lock–up mechanism.
(1) Drive in D position, O/D gear, at a steady speed
(lock–up ON) of about 75 km/h (47 mph).
(2) Lightly depress the accelerator pedal and check
that the engine RPM does not change abruptly.
If there is a big jump in engine RPM, there is no
lock–up.
that the shift point conforms to it shown on the au–
tomatic shift schedule.
There is no O/D up–shift and lock–up in the 2 position.
To prevent overrun, the transmission up–shifts into 3rd
gear at around 100 km/h (62 mph) or more.
the accelerator pedal and check the engine braking
effect.
Second coast brake is defective