Mazda MX-6 1998, Руководство по ремонту

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AUTOMATIC TRANSAXLE [LA4A-EL]
Caution
•
Selector lever must be in the D range
position or internal damage could result.
Do not shift to 2 or 1 range position.
1. Verify that the gear select switch is in first gear
position. Move the selector lever into the D range.
Depress the 3 -2 timing/coasting clutch solenoid
(3 -2 T/CCS) button and accelerate the vehicle. If
there is no vehicle movement, inspect the forward
one-way clutch. If movement occurs, proceed to
step 2 and continue diagnosis.
2. Verify that the gear select switch is in “1” position.
Move the selector shift lever into D range and
accelerate to 24 km/h {15 mph}. Select second
gear by rotating the gear selector switch to “2”
position.
•
Did the vehicle upshift to second gear?
• Did the appropriate shift solenoids
activate/deactivate?
3. Accelerate to 40 km/h {25 mph} and select “3”
position.
•
Did the vehicle upshift to third gear?
• Did the appropriate shift solenoids
activate/deactivate?
4. Accelerate to 56 — 72 km/h {35 — 45 mph} and
select “4” position.
•
Did the vehicle upshift to fourth gear?
• Did the appropriate shift solenoids
activate/deactivate?
Caution
•
The vehicle must be below 56 km/h {35
mph} before selecting gear select “1”
position, or the transaxle could overrun.
5. Reverse the order to downshift.
Note
• 4 -3 downshift will be harsh when using the
transaxle tester.
• Does the vehicle down shift from forth gear to
third gear, third gear to second gear, and
second gear to first gear?
• Did the appropriate shift solenoids
activate/deactivate?
Torque converter clutch (TCC) engagement
• Does the torque converter engage?
• Does the engine speed drop?
• Did the TCC solenoid activate?
Note
This test should be performed on the road. If it
is performed on a hoist, a technician may not
feel the torque converter clutch engage.
Caution
•
Do not depress the TCC switch with the
transaxle in gear and the vehicle at a stop.
Damage to converter clutch may result.
1. A c c e le ra te a n d s h ift th e v e h ic le up into th ird g e a r
b y
using the tester (Refer to drive test). Hold the
sp e e d s te a d y a n d d e p re s s th e T C C sw itch .
TCC
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2. Release the TCC switch.
• Did the TCC solenoid deactivate?
• Did the TCC release?
• Did the engine speed increase?
3 - 2 tim in g /c o a s tin g c lu tc h (3 -2 T /C C S )
e n g a g e m e n t
N o te
• This test should be performed on the road. If it
is performed on the hoist, a mechanic may not
feel the 3 -2 timing/coasting clutching
disengage.
1. Accelerate and upshift the vehicle into second
gear. Go to closed throttle. Depress the
3-2T/CCS switch.
• Does the 3 -2 timing/coasting clutch
disengage?
• Did the 3-2T/CCS solenoid deactivate (light
on)?
2. Press lightly on the throttle, then release the
3-2T/CCS switch.
N ote
• Coast clutch engagement at closed throttle will
be harsh.
• Does the 3 -2 timing/coasting clutch engage?
• Did engine braking occur?
• Did the 3 -2 T/CCS solenoid activate (light
off)?
0 9 ______________
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3-2T/CCS
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VPWR STATUS
ACTIVATE
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3-2T/CCS 1
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Turbine shaft speed (TSS) sensor function check.
Note
• This test may be performed on the hoist or on
the road.
0 5 -1 7 A -1 3