Mazda CX-7 2007 Workshop Manual page 991

SYMPTOM TROUBLESHOOTING [AW6A-EL, AW6AX-EL]
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NO.5 NO CREEP AT ALL[AW6A-EL, AW6AX-EL]
5 No creep at all
• Vehicle does not move in D range and R position when idling on a flat paved road.
DESCRIPTION
• Either engine output low or there is clutch slippage.
— Clutch burnt (C1 clutch, C3 clutch)
• Line pressure low
• Shift solenoid C malfunction
• Shift solenoid D malfunction
• Shift solenoid E malfunction
• Line pressure control solenoid malfunction
• Shift solenoid F malfunction
• Body GND malfunction
• Control valve body malfunction
POSSIBLE
— Transaxle fixed in 3GR or 5GR* (Operation of fail-safe function)
CAUSE
• Short or open circuit in wiring harness
• Poor connection of connector
• Malfunction of electronic parts of output and input system
— There is no engine torque
• Torque converter malfunction
Note
• Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board
Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See 05-03-3 BASIC
INSPECTION[AW6A-EL, AW6AX-EL].)
Diagnostic procedure
STEP
• Does the vehicle creep in P and/or N
1
position?
• Stop the engine.
2
• Inspect following solenoid.
(See 05-17-20 SOLENOID VALVE
INSPECTION[AW6A-EL, AW6AX-EL].)
— Shift solenoid C
— Shift solenoid D
— Shift solenoid E
— Shift solenoid F
— Line pressure control solenoid
• Are these solenoids normal?
• Remove the torque converter.
3
(See 05-17-46 TORQUE CONVERTER
REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)
• Inspect the torque converter.
• Is the torque converter normal?
• Verify test results.
4
— If normal, return to the diagnostic index to service any additional symptoms.
— If malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform
repair or diagnosis.
• If the vehicle is repaired, troubleshooting completed.
• If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.
* : If case of shift solenoid C failure
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INSPECTION
Yes Inspect or adjust the selector lever.
(See 05-18-6 SELECTOR LEVER INSPECTION.)
(See 05-18-7 SELECTOR CABLE ADJUSTMENT.)
No Go to the next step.
Yes Go to the next step.
No Inspect the coupler component.
If normal, replace the control valve body.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
Yes Inspect the ATF condition.
• If a large amount of metal specks are found, replace the
transaxle.
(See 05-17-29 AUTOMATIC TRANSAXLE REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
• If a large amount of metal specks are not found, replace
the control valve body.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
No Replace the torque converter.
id050310801000
ACTION
05-03–13
05-03