Mazda 1990 323 Workshop Manual Supplement page 303

ROAD TEST
ROAD TEST
Caution
l
Perform the test at normal ATF operating temperature (60-70°C, 140-158OF).
This step is performed to inspect for problems in the various gear ranges. If these tests show any problems,
refer to the electronic system component or mechanical sections to adjust or replace.
D-RANGE TEST
Shift Point, Shift Pattern, and Shift Shock
1. Shift the selector lever to D range.
Note
l
Throttle sensor voltage of the EC-AT Tester represents the throttle valve opening.
2. Accelerate the vehicle with half- and full-throttle opening.
3. Check that 1-2, 2-3, and 3-OD upshifts, downshifts, and lockup are obtained. The shift points must be
as shown in the D range shift diagram.
Note
l
Drum speed (rpm) of the EC-AT Tester represents the shift point.
l
The vehicle's indicated speed as shown by the vehicle speedometer may not be accurate when
the vehicle is on a chassis roller. Therefore, verify the shift points using only the drum speed
as shown by the EC-AT Tester.
l
There is no lockup when the coolant temperature is below 72OC (162OF).
l
There is no lockup when the brake pedal is depressed.
4. Check the upshifts for shift shock or slippage in the same manner.
5. While driving in
OD
(below 148 km/h, 92 mph), shift the selector lever to S range and check that OD-3
downshift immediately occurs.
D-range shift diagram
izz
LOCKUP AVAILABLE WHEN COASTING
mj
LOCKUP AVAILABLE WHEN ACCELERATING AND CRUISING
4,0
B
(84
2
f
3.5 _
0
(7/8)
W
k
3.1 _
6
(64
% 2.7 _
t (518)
z
z
2.3 _
$
(418)
1.9 _
8
(3/9)
!2
%
1.4 _
(24
!t!
b
0.9 _
B
(14
F
0.4
034
I
VEHICLE SPEED km/h (mph)
03UOK2-074
K2-127