B1380

DTC Troubleshooting: B1380

DTC B1380:

Power Tailgate Closer Unit Neutral Switch Circuit Malfunction

1. Open the tailgate with the tailgate outer handle.

2. Close the tailgate manually.

3. Turn the ignition switch to LOCK (0) and then back to ON (II).

4. Clear the DTCs with the HDS.

5. Check for DTCs with the HDS.

Is DTC B1380 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power tailgate control unit and the power tailgate closer unit.�

6. Open the tailgate with the power tailgate outer handle.

7. Turn the ignition switch to LOCK (0).

8. Disconnect the 6P connector from the power tailgate closer unit.

9. Check for continuity between power tailgate closer unit 6P connector terminals No. 1 and No. 5.





Is there continuity?

YES -

Faulty neutral switch, replace the power tailgate closer unit.�

NO -

Go to step 10.

10. Check for continuity between power tailgate closer unit 6P connector terminal No. 5 and body ground.





Is there continuity?

YES -

Replace the power tailgate closer unit.�

NO -

Go to step 11.

11. Disconnect power tailgate control unit connector C (14P).

12. Check for continuity between power tailgate control unit connector C (14P) terminal No. 3 and body ground.





Is there continuity?

YES -

Repair a short to ground in the wire.�

NO -

Go to step 13.

13. Turn the tailgate lock latch to the fully-closed position using a screwdriver.

14. Disconnect power tailgate control unit connector B (20P).

15. Connect battery power to the power tailgate control unit connector B (20P) terminal No. 1 and ground the terminal No. 2 momentarily. (The motor should run in the release direction.)






16. Reconnect the 6P connector to the power tailgate closer unit.

17. Check for continuity between power tailgate control unit connector C (14P) terminals No. 3 and No. 11.





Is there continuity?

YES -

Replace the power tailgate control unit.�

NO -

Go to step 18.

18. Disconnect the 6P connector from the power tailgate closer unit.

19. Check for continuity between power tailgate closer unit 6P connector terminals No. 1 and No. 5.





Is there continuity?

YES -

Repair an open in the wire between the power tailgate closer unit and power tailgate control unit.�

NO -

Replace the power tailgate closer unit.�