DTC P0721: Output Shaft Speed Sensor Circuit Range/Performance: Notes

DTC detecting condition: 

Immediately at fault recognition

Trouble symptom: 

• No lock-up occurs.
• The engine stalls when the vehicle is stopped.
• Shift control malfunction
  CAUTION: After servicing or replacing faulty parts, perform the last step of the basic diagnostic procedure. Ref. to TRANSMISSION (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

1. CHECK DTC. 

   Read the DTC using Subaru Select Monitor. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Besides DTC P0721, is DTC P0500 displayed?

   Yes:  Perform the diagnosis according to DTCs other than P0721. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

   No:  Perform the diagnosis according to DTC P0720. Ref. to TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P0720 OUTPUT SHAFT SPEED SENSOR CIRCUIT .