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DTC P0741:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

DTC P0741:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

 id0502q98182r2

Caution
•  Because the clutch in the automatic transaxle may be damaged, always replace the automatic transaxle even if a pending code (does not recur) has been detected.

Outline

System malfunction location

TCC control solenoid stuck off
Detection condition
•  Under the following conditions, difference in slip amount over 5 s compared to target slip amount is 200 rpm or more, and TCC feedback hydraulic pressure is 200 kPa {2.04 kgf/cm2, 29.0 psi} or more occurs:
―  Selector lever position is D position.
―  No electrical malfunction in TCC control solenoid
―  During TCC or TCC feedback
―  There is no correlation between vehicle speed signal from DSC HU/CM (without Mazda M Hybrid)/electronically controlled brake unit (with Mazda M Hybrid) and output shaft speed sensor signal.
―  Engine is running.
―  ATF temperature is −25 °C {−13 °F} or more.
―  Turbine/input shaft speed sensor and output shaft speed sensor DTC is not recorded.
Fail-safe
•  Inhibits TCC control.
•  Inhibits learning control.
•  Inhibits manual mode.
•  Inhibits neutral idle control.
•  Inhibits i-stop control.
•  Inhibits AAS.
Possible cause
•  TCC control solenoid malfunction
•  ATF leakage from clutch circuit
•  TCC clutch burnt
•  Control valve body malfunction
•  Pressure control solenoid malfunction
System wiring diagram
•  Not applicable
Connector diagram
•  Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action
1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
•  Record the freeze frame data/snapshot data.
Note
•  Recording can be facilitated using the screen capture of the PC function.
—
Go to the next step.
2
VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
•  Verify related Service Bulletins, on-line repair information, or Service Information availability.
•  Is any related information available?
Yes
Perform repair or diagnosis according to the available information.
•  If the vehicle is not repaired, replace the automatic transaxle.
Go to repair completion verification.
No
Replace the automatic transaxle, then go to repair completion verification.
(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6A-EL (SKYACTIV-G 2.0, SKYACTIV-G 2.5) (E)].)
(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6AX-EL (SKYACTIV-G 2.0, SKYACTIV-G 2.5) (E)].)
(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6A-EL (SKYACTIV-D 1.8)].)
(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6AX-EL (SKYACTIV-D 1.8)].)
(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6A-EL (SKYACTIV-X 2.0)].)
(See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6AX-EL (SKYACTIV-X 2.0)].)
Repair completion verification
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Drive the vehicle for 5 s or more under the following conditions:
•  Selector lever position: D position
•  During TCC or TCC feedback
•  Perform the DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (ET6A-EL, ET6AX-EL) (E)].)
No
DTC troubleshooting completed.