Mazda CX-7 2007 Workshop Manual page 968

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
STEP
7 VERIFY TROUBLESHOOTING OF DTC P2757
COMPLETED
• Make sure to reconnect all the disconnected
connectors.
• Clear the DTC from the memory using the M-
MDS.
• Start the engine.
• Warm up engine and ATX.
• Drive the vehicle under the following conditions
for2 s or more.
— ATF temperature (TFT PID): 20 °C {68 °F}
or more
— Drive in the D range, 4GR— 6GR (TCC
operation)
• Are any DTCs present?
8 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See 05-02-4 AFTER REPAIR
PROCEDURE[AW6A-EL, AW6AX-EL].)
• Are any DTCs present?
End Of Sie
DTC P2758[AW6A-EL, AW6AX-EL]
DTC P2758 Torque converter clutch (TCC) stuck on
• All of the following conditions are satisfied under each of the following accelerator conditions.
— ATF temperature 20 °C {68 °F} or more
— Driving in D range
— Engine running
— Engine speed within 1,000— 3,000rpm
— Torque converter clutch (TCC) no operating
— Difference between engine speed and turbine revolution speed less than 30 rpm
DETECTION
Diagnostic support note:
CONDITION
• This is a continuous monitor (CCM).
• The MIL does not illuminate if PCM detects the above malfunction conditions during first the drive cycle.
• A PENDING CODE is not available.
• FREEZE FRAME DATA is not available.
• The AT warning light illuminates.
• The DTC is stored in the PCM memory.
• ATF level low
• Deteriorated ATF
• TCC control solenoid stuck
POSSIBLE
• Line pressure low
CAUSE
• Control valve stuck
• Torque converter malfunction
• TCM malfunction
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related Service Bulletins and/or on-line
repair information availability.
• Is any related repair information available?
05-02–80
INSPECTION
INSPECTION
Yes Replace the TCM, then go to the next step.
(See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See 05-02-5 DTC TABLE[AW6A-EL, AW6AX-EL].)
No DTC troubleshooting completed.
Yes Go to the next step.
No Record the FREEZE FRAME DATA on the repair order,
then go to the next step.
Yes Perform repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
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