Transmission Control Systems

TROUBLE CODE 31 - THROTTLE POSITION SENSOR





8E1 CHECK THROTTLE POSITION SENSOR.





8E2: CHECK THROTTLE POSITION SENSOR.





8E3: CHECK HARNESS CONNECTOR BETWEEN TCM AND THROTTLE POSITION SENSOR.





8E4: CHECK HARNESS CONNECTOR BETWEEN TCM AND THROTTLE POSITION SENSOR.





8E5: CHECK HARNESS CONNECTOR BETWEEN TCM AND THROTTLE POSITION SENSOR.





8E6: CHECK HARNESS CONNECTOR BETWEEN TCM AND THROTTLE POSITION SENSOR.





8E7: PREPARE SUBARU SELECT MONITOR.





8E8: CHECK INPUT SIGNAL FOR TCM.

8E9: CHECK INPUT SIGNAL FOR TCM.





8E10: CHECK INPUT SIGNAL FOR TCM USING SUBARU SELECT MONITOR.





8E11: CHECK INPUT SIGNAL FOR TCM USING SUBARU SELECT MONITOR.





8E12: CHECK INPUT SIGNAL FOR TCM (THROTTLE POSITION SENSOR POWER SUPPLY).





8E13: CHECK INPUT SIGNAL FOR TCM USING SUBARU SELECT MONITOR (THROTTLE POSITION SENSOR POWER SUPPLY).

8E14: CHECK POOR CONTACT.

DIAGNOSIS:
Input signal circuit of throttle position sensor is open or shorted.

TROUBLE SYMPTOM:
Shift point too high or too low; engine brake not effected in "3" range: excessive shift shock; excessive tight corner "braking".





WIRING DIAGRAM