DTC P0721:00

Output shaft speed sensor/sensor output range malfunction

DETECTION CONDITION

• Under the following condition, the output shaft speed is 13,560 rpm or more in forward or 2,000 rpm or more in reverse for a continuous 1 s:

• Battery voltage is 8 V or more.

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

STEP

INSPECTION

ACTION

1

• Perform the DSC HU/CM DTC inspection using the M-MDS.

  (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

No

Go to the next step.

2

• Does the instrument cluster have a record of replacement?

Yes

Perform the instrument cluster configuration, then go to Step 6.

(See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA).)

No

Go to the next step.

3

• Does the automatic transmission (with control valve body) have a record of replacement?

Yes

Perform the TCM configuration.

(See TCM CONFIGURATION [FW6A-EL].)

No

Go to the next step.

4

• 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.

5

• 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.

• If the vehicle is not repaired, replace the control valve body.

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

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].)

6

• Clear the DTC using the M-MDS.

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

• Perform the following procedure to ensure that the DTC has been resolved:

• Drive the vehicle for 1 s or more under the following condition:

• Vehicle speed: 30 km/h {19 mph} or more

• Perform the DTC inspection using the M-MDS.

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

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

No

DTC troubleshooting completed.