B1377

DTC Troubleshooting: B1377

DTC B1377:

Power Tailgate Inside Switch Circuit Malfunction

1. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.

2. Clear the DTCs with the HDS.

3. Open the tailgate with the keyless transmitter.

4. Push the power tailgate inside switch for more than 2 seconds.

5. Check for DTCs with the HDS.

Is DTC B1377 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 inside tailgate switch.�

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

7. Disconnect the power tailgate inside switch 5P connector Power Tailgate Inside Switch Test/Replacement.

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

9. Check for continuity between power tailgate control unit connector C (14P) terminal No. 8 and body ground.





Is there continuity?

YES -

Repair a short to ground in the wire.�

NO -

Go to step 10.

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

11. Check for continuity between power tailgate control unit connector B (20P) terminal No. 5 and body ground.





Is there continuity?

YES -

Repair a short to ground in the wire.�

NO -

Go to step 12.

12. Do the power tailgate inside switch test Power Tailgate Inside Switch Test/Replacement.

Is the switch OK?

YES -

Replace the power tailgate control unit Service and Repair.�

NO -

Replace the power tailgate inside switch Power Tailgate Inside Switch Test/Replacement.�