DTC Troubleshooting: B1387

DTC B1387:  Power Tailgate Sensor B Pulse Error


1.Clear the DTCs by selecting the DTCs MENU (DTCs) from the Honda PGM Tester or the HDS.

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

3.Check the DTCs by selecting the DTCs MENU (DTCs) from the Honda PGM Tester or the HDS.

Is DTC B1387 indicated?


YES - Go to 4.


NO - Intermittent failure, system is OK at this time.n


4.Clear the DTC by selecting the DTCs MENU (DTCs) from the Honda PGM Tester or the HDS.

5.Check for voltage between the No. 7 and No. 8 terminals of power tailgate control unit connector D (8P) with the connector connected.

6.Check for voltage in operating by pushing the button of transmitter or pushing the power tailgate inner switch.

Does 0 V to 5 V repeat?


YES - Faulty power tailgate control unit; replace it.n


NO - Repair an open or a short in the WHT/RED (SEN B) wire, or faulty power tailgate sensor; replace the power tailgate drive unit.n