DTC B1389: Power Tailgate Clutch Malfunction

1. Clear the DTCs using the HDS.

1. Open the tailgate fully, then close the tailgate fully with the transmitter or the power tailgate inner switch.

1. Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS.

Is DTC B1389 indicated?

YES | - | Go to Step 4 .
NO | - | Intermittent failure, the system is OK at this time.■

1. Cycle the ignition switch to OFF, and Open the tailgate fully, then disconnect power tailgate control unit connector C (4P).

1. Check for continuity between the No. 3 and No. 4 terminals of power tailgate control unit connector C (4P) and body ground.

Is there continuity?

YES | - | Repair a short in the BRN/BLK (CLU+) on the RED/GRN (CLU−) wire, or faulty power tailgate clutch; replace the power tailgate drive unit.■
NO | - | Faulty power tailgate control unit; replace it.■