Toyota 4-Runner 1985 Repair Manual page 414

AT-12 AUTOMATIC TRANSMISSION -
Test
o~@
No Up-Shift
AT0778
•
Engine Braking
AT0779
Acceleration
Deceleration
Abnormal Noise?
TEOO1S
Full Throttle
Slippage?
AT0780
Parking Lock
Pawl Acting?
Vehicle on Gradient
3. "l" RANGE TEST
(a) While running in ilL" range, check to see that
thp"~
is no up-shift to 2nd gear.
(b)
While running in "L" range, release the accelerator
pedal and check the engine braking effect .
(c) Check for abnormal noise at acceleration and
deceleration.
4. "R" RANGE TEST
Shift into
"R"
range and, while starting at full throttle,
check for slipping.
5. "P" RANGE TEST
Stop the vehicle on a gradient (more than 9
0/0)
and after
shifting into
"P"
range, release the parking brake. Then
check that the parking lock pawl prevents the vehicle from
moving.