Mazda CX-7 2007 Workshop Manual page 989

SYMPTOM TROUBLESHOOTING [AW6A-EL, AW6AX-EL]
NO.1 VEHICLE DOES NOT MOVE IN D RANGE, OR IN R POSITION[AW6A-EL, AW6AX-EL]
1 Vehicle does not move in D range, or in R position
• Vehicle does not move when accelerator pedal is depressed.
DESCRIPTION
• If the vehicle does not move in D range or R position, basically, the malfunction is in the ATX. (Vehicle
will move even with a malfunction in the TCM.) Since a malfunction is in the sensor circuit or output
circuit is the cause of the malfunction in the ATX, inspect the sensors, output circuit, and the related
wiring harnesses.
— Clutch slippage, worn (D range-C1 clutch, One-way clutch, R position-C3 clutch, B2 brake)
• Line pressure low
• Shift solenoid C malfunction
• Shift solenoid D malfunction
• Shift solenoid E malfunction
• Line pressure control solenoid malfunction
• Shift solenoid F malfunction
POSSIBLE
• Sensor GND malfunction
CAUSE
• Body GND malfunction
• Control valve body malfunction
— Selector lever malfunction
— Parking mechanism not operating properly
— Torque converter malfunction
— N position learning is not performed
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
• When the vehicle is stopped on a flat, level
1
road and the engine off, does the vehicle
move when pushed? (in D range or N, R
positions with the brake pedal released)
• Start the engine.
2
• Does vehicle move when selector lever in
between N position and D range?
• Stop the engine.
3
• 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 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.
End Of Sie
INSPECTION
Yes Go to the next step.
No Inspect for parking mechanism.
Yes Inspect or adjust selector lever.
(See 05-18-6 SELECTOR LEVER INSPECTION.)
(See 05-18-7 SELECTOR CABLE ADJUSTMENT.)
Perform N position learning.
(See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)
No Go to the next step.
Yes Replace the ATX (clutch slippage, worn)
(See 05-17-29 AUTOMATIC TRANSAXLE REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
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].)
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ACTION
05-03–11
05-03