Mazda MX-6 1998, Руководство по ремонту

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TROUBLESHOOTING [LA4A-EL]
2 NO REVERSE ENGAGEMENT (NO MOVEMENT)
[TROUBLESHOOTING HINTS]
« Powertrain control system • Low/reverse clutch component
• Improper pressures • Forward/coasting/direct (F/C/D) clutch cylinder
• Internal or external shift linkages component
• Control valve body • Transaxle case
• Oil pump • Reverse/fourth gear (REV/4GR) carrier component
• Reverse clutch component
STEP INSPECTION
ACTION
1 Powertrain control system
• Are there any problems with the following?
• Electrical input/output
• Vehicle wiring harness
• PCM
• Shift solenoid No.1 (SS1) (ON)
• Transaxle range (TR) switch
c r 0 5 -0 1 A ELECTRICAL SYSTEM
COMPONENTS [LA4A-EL]
Yes Run OBD tests
Perform pinpoint tests “A and D”
tr 05-01 AUTOMATIC TRANSAXLE ON-BOARD
DIAGNOSIS [LA4A-EL], Pinpoint Test
No Go to next step
2 Improper pressures
• Is there low line pressure?
d
■ 0 5 -0 1 A MECHANICAL SYSTEM TEST
[LA4A-EL], Line Pressure Test
Yes Check the following possible components
Control valve body, oil pump, reverse clutch component,
Low/reverse clutch component
No
Go to next step
3 Internal or external shift linkages
• Do any of the following problems exist?
• Damaged
• Misadjusted
c r 0 5 -1 8 SELECTOR LEVER
REMOVAL/INSTALLATION
Yes Service as required
No Go to step 9
4
Control valve body
• Do any of the following problems exist?
• Bolts are not torqued to specification
• Gasket is damaged
• 1 -2 shift valve, SS1, main regulator valve,
low/reverse modulator valve, low/reverse
accumulator piston, pressure tap plate are
damaged, missing, stuck, or misassembled
• Separator plates are damaged
• Hydraulic passages are damaged
Yes Service as required
No
Go to next step
5 Oil pump
• Do any of the following problems exist?
• Bolts are not torqued to specification
• Gasket is damaged
• Porosity/cross leaks/ball plug are missing
or leaking, or plugged hole
• Pump support seal rings, #6 and #7, are
damaged
Yes
Service as required
No Go to next step
6 Reverse clutch component
• Do any of the following problems exist?
• Seals-piston are damaged
• Ball check valve are damaged
• Friction elements worn, are severely
damaged, or misassembled
• Piston return spring damaged
• Reverse clutch hub to F/C/D clutch hub
splines are damaged
Yes Service as required
No Go to next step
7 Low/reverse clutch component
• Do any of the following problems exist?
• Seals or piston are damaged
• Friction elements are worn, or severely
damaged
• Piston return spring is damaged
• Wave spring is missing
• Piston bore is damaged
Yes Service as required
No Go to step 3
8 Forward/coasting/direct clutch cylinder
• Are any of the reverse seal rings damaged,
missing, or misassembled?
Yes Service as required
No Go to next step
0 5 -0 1 A -3 8