Mazda MX-6 1998, Руководство по ремонту, Страница: 814 / 1282

AUTOMATIC TRANSAXLE [LA4A-EL]
ELECTRICAL SYSTEM COMPONENTS [LA4A-EL]
Transaxle Tester Instruction
The transaxle tester allows a technician to operate the
electrical portion of the transaxle independent of the
vehicle electronics. The transaxle tester usage is
divided into five steps.
1. Preliminary testing and diagnosis.
2. Installing the transaxle tester.
3. Static testing-vehicle OFF.
4. Dynamic testing-vehicle running.
5. Removing the transaxle tester and clearing
Diagnostic Trouble Codes (DTCs).
Preliminary testing and diagnosis
Before any diagnostic testing is done on a vehicle
some preliminary checks must be performed, as
outlined below. Be sure to write down your findings,
especially any DTC, for future reference.
1. Verify customer’s concern
•
upshift
•
downshift
•
coasting
•
engagement
•
noise/vibration
(1) If noise/vibration, check for dependencies:
•
engine speed dependent
•
vehicle speed dependent
•
shift dependent
•
gear dependent
•
range dependent
•
temperature dependent
2.
Vehicle at normal operating temperature.
3.
Check fluid level and condition.
4. Visually inspect the vehicle for the following items:
• vehicle modifications
• electronic add-on items
• leaks
• proper linkage adjustments
• Perform vehicle on-board diagnosis test.
(Refer to 0 5 -0 1 A AUTOMATIC TRANSAXLE
ON-BOARD DIAGNOSIS [LA4A-EL].)
Installing the transaxle tester (Set Up Procedures)
Installing the transaxle tester at the solenoid body
connector allows the separation of the vehicle
electronics from the transaxle electronics.
Disconnecting the normal vehicle electronics will set
additional DTCs and cause firm shifts. (Disconnecting
the transaxle connector defaults the transaxle to
maximum line pressure).
Note
• During tester usage, additional DTCs may be
set.
• Therefore, it is important that all DTCs are
erased after repairs have been made. To
verify elimination of all DTCs, rerun the
On-Board Diagnostic Test. (Refer to 05-01A
AUTOMATIC TRANSAXLE ON-BOARD
DIAGNOSIS [LA4A-EL].)
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Caution
•
Do not attempt to pry off connectors with a
screwdriver.
This will damage the connector and could
result in a transaxle concern.
1. Disconnect the emission harness at the transaxle
connector and at the TSS connector on the oil
pump body in the LH wheel arch.
2. Turn the tester solenoid select switch to the
“OHMS CHECK" position.
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Caution
•
Route all cables away from heat sources.
3. Install the SST (Transaxle overlay) onto tester.
Connect the SST (Transaxle diagnostic harness)
to the transaxle tester and then to the appropriate
solenoid body connector and turbine shaft speed
(TSS) connector.
Caution
•
Route all gauge lines away from heat
sources.
Warning
• Removing the line pressure inspection
port when the ATF is hot can be
dangerous.
Hot ATF can come out of the opening and
badly burn. Before removing the line
pressure inspection port, allow the ATF to
cool.
4. Remove the square head plug shown in the figure.
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