P0720

P0720 OUTPUT SPEED SENSOR

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


CAUTION:
Always drive vehicle at a safe speed.

1. PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
- GO TO 2.

2. CHECK DTC DETECTION

With CONSULT
1.Start the engine.
2.Select "Data Monitor" in "TRANSMISSION".
3.Select "PRI SPEED" and "VEHICLE SPEED".
4.Drive the vehicle.
5.Maintain the following conditions for 5 seconds or more.

PRI SPEED : 1,000 rpm or more
VEHICLE SPEED : 10 km/h (7 MPH) or more

6.Stop the vehicle.
7.Select "Self Diagnostic Results" in "TRANSMISSION".
With GST
Follow the procedure "With CONSULT".
Is "P0720" detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK SECONDARY SPEED SENSOR POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect secondary speed sensor connector.
3.Turn ignition switch ON.
4.Check voltage between secondary speed sensor harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 5.

2. CHECK TCM INPUT SIGNAL

1.Turn ignition switch OFF.
2.Connect secondary speed sensor connector.
3.Lift up the vehicle.
4.Start the engine.
5.Check frequency of secondary speed sensor.





Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- GO TO 3.

3. CHECK CIRCUIT BETWEEN TCM AND SECONDARY SPEED SENSOR (PART 1)

1.Turn ignition switch OFF.
2.Disconnect TCM connector and secondary speed sensor connector.
3.Check continuity between TCM harness connector terminals and secondary speed sensor harness connector terminals.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace damaged parts.

4. CHECK CIRCUIT BETWEEN TCM AND SECONDARY SPEED SENSOR (PART 2)

Check continuity between TCM harness connector terminals and ground.





Is the inspection result normal?
YES- Replace secondary speed sensor. Removal And Installation.
NO- Repair or replace damaged parts.

5. CHECK CIRCUIT BETWEEN SECONDARY SPEED SENSOR AND IPDM E/R (PART 1)

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R connector.
3.Check continuity between secondary speed sensor harness connector terminal and IPDM E/R harness connector terminal.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace damaged parts.

6. CHECK CIRCUIT BETWEEN SECONDARY SPEED SENSOR AND IPDM E/R (PART 2)

Check continuity between secondary speed sensor harness connector terminal and ground.





Is the inspection result normal?
YES- GO TO 7.
NO- Repair or replace damaged parts.

7. DETECT MALFUNCTIONING ITEM

Check the following items:
- Harness open circuit or short circuit between the ignition switch and IPDM E/R. Ignition Power Supply.
- 10A fuse (No.55, located in IPDM E/R). Fuse, Connector And Terminal Arrangement.
- IPDM E/R
Is the check result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Repair or replace damaged parts.