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2014 - Mazda6 - Transmission/Transaxle

DTC P0722:00 [FW6A-EL]



DTC P0722:00

Open circuit in output shaft speed sensor circuit

DETECTION CONDITION

  • Under the following conditions, the output shaft speed sensor signal is not input for 1 s:

    • Engine is running.

    • Vehicle speed signal related DTC is not recorded.

    • Vehicle speed is 16 km/h {9.9 mph} or more.

    • There is no difference between vehicle speed signal from DSC HU/CM and output shaft speed sensor signal.

    • DTC U0121:00 is not recorded.

    Diagnostic support note
  • The check engine light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

  • The automatic transaxle warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.

  • PENDING CODE is available.

  • FREEZE FRAME DATA is available.

  • DTC is stored in the TCM memory.

FAIL-SAFE FUNCTION

  • Inhibits learning control.

  • Inhibits manual mode.

  • Inhibits neutral idle control.

  • Inhibits AAS.

POSSIBLE CAUSE

  • Output shaft speed sensor malfunction

SYSTEM WIRING DIAGRAM

Not applicable


Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA/SNAPSHOT DATA HAS BEEN RECORDED
  • Has the freeze frame data/snapshot data been recorded on the repair order?

Yes

Go to the next step.

No

Record the freeze frame data/snapshot data on the repair order, then go to the next step.

2

VERIFY RELATED REPAIR INFORMATION AVAILABILITY
  • Verify related Service Bulletins and/or on-line repair information availability.

  • Is any related repair information available?

Yes

Perform repair or diagnosis according to the available repair information.

Go to the next step.

No

Replace the control valve body, then go to the next step.

(See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL].)

3

VERIFY DTC TROUBLESHOOTING COMPLETED

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [FW6A-EL].)

No

DTC troubleshooting completed.




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