Mazda MX-6 1998, Workshop Manual

Page: 845 / 1282

AUTOMATIC TRANSAXLE [GF4A-EL]
D Range Test
D range (O/D OFF switch OFF)
Note
• The NORMAL mode and SLOPE mode are
automatically selected by the powertrain
control module. The powertrain control module
is shift to SLOPE mode when the upgrade or
downgrade is approx. 4% or more, and is shift
to NORMAL mode when the upgrade or
downgrade is approx. 2% or less.
1. Shift the selector lever to D range.
2. Accelerate the vehicle with half and wide open
throttle.
3. Verify that 1-»2, 2-»3, and 3-»4 upshifts and
downshifts are obtained. The shift points must be
as shown in the diagram above.
4. Drive the vehicle in fourth, third, and second gears
and verify that kickdown occurs for 4->3, 4->2,
4—>1, 3->2, 3->1, 2—»1, and that the shift points
are as shown in the diagram above.
5. Decelerate the vehicle and verify that engine
braking effect is felt in fourth and third gears.
6. Drive the vehicle and verify that torque converter
clutch operation is obtained in fourth gear, (only
for NORMAL mode)
D range (O/D OFF switch ON)
1. Shift the selector lever to D range and select the
O/D OFF switch ON.
2. Accelerate the vehicle with half and wide open
throttle.
3. Verify that 1->2 and 2->3 upshifts and downshifts
are obtained.
4. Drive the vehicle in third and second gears and
verify that kickdown occurs for 3 -*2, 3-»1, 2-»1.
5. Decelerate the vehicle and verify that engine
braking effect is felt in third gear.
6. Drive the vehicle and verify that torque converter
clutch operation is obtained in third gear.
Noise and vibration
Drive the vehicle in third gear (O/D OFF switch ON)
and listen closely for any out of the ordinary noise or
vibration. The torque converter, drive shaft, and
differential can be sources of abnormal noise and
vibration if they are not functioning properly. Check
these when searching for sources of noise and
vibration.
0 5 -1 7 B -5