Home

Mazdamanuals.com

DTC P0722:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

DTC P0722:00 [TCM (ET6A-EL, ET6AX-EL) (E)]

 id0502q98215r2

Outline

System malfunction location

Open circuit in output shaft speed sensor circuit
Detection condition
•  Under the following conditions, the output shaft speed sensor signal is not input:
―  Engine is running.
―  Vehicle speed signal related DTC is not recorded.
―  The vehicle is driven at the specified speed or more.
―  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.
―  DTC U0121:00 is not recorded.
Fail-safe
•  Inhibits learning control.
•  Inhibits manual mode.
•  Inhibits neutral idle control.
•  Inhibits i-stop control.
•  Inhibits AAS.
Possible cause
•  Output shaft speed sensor 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 control valve body.
Go go to repair completion verification.
No
Replace the control valve body, then go to repair completion verification.
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [ET6A-EL, ET6AX-EL (E)].)
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 1 s or more under the following condition:
•  Vehicle speed: 16 km/h {9.9 mph} or more
•  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.