DTC P0721

DTC P0721  : Output Shaft (Countershaft) Speed Sensor (Range/Performance)

DTC (A/T)

1. DTC check

   -1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Raise the vehicle on a lift. Make sure it is securely supported, and allow all four wheels to rotate freely.

   - 4. Start the engine, disable the VSA by pressing the VSA OFF button.

   - 5. Run the vehicle with the shift lever in D, and keep the vehicle speed at speeds over 12 mph (20 km/h) for at least 10 seconds. Slow down, and stop the wheels.

   - 6. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0723 Output Shaft (Countershaft) Speed Sensor (Intermittent Failure)

   Is DTC P0723 indicated?

   YES 

   Do the troubleshooting for DTC P0723 .

   NO 

   Go to step 2.

2. Problem verification

   -1. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0721 Output Shaft (Countershaft) Speed Sensor (Range/Performance)

   Is DTC P0721 indicated?

   YES 

   The failure is duplicated. Go to step 3.

   NO 

   Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

3. Output shaft (countershaft) speed sensor connection check

   -1. Check the output shaft (countershaft) speed sensor for poor connection and proper installation.

   Is the connection and installation OK?

   YES 

   The connection and installation are OK. Replace the output shaft (countershaft) speed sensor .

   NO 

   Repair faulty connection or installation.