DTC Troubleshooting: B1378

DTC B1378: Right Side Power Tailgate Touch Sensor Signal Error

1. Clear the DTCs using the HDS.

1. Cycle the ignition switch to OFF, and then back ON.

1. Open the tailgate fully with the transmitter or manual operation.

1. Close the tailgate fully with the transmitter or the power tailgate inner switch.

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

Is DTC B1378 indicated?

YES | - | Go to Step 6 .
NO | - | Intermittent failure, the system is OK at this time.■

1. Disconnect the 2P connector from the right power tailgate upper and lower touch sensors.

1. Check for voltage between the No. 1 and No. 2 terminals of the right power tailgate upper and lower touch sensor 2P connectors.

Is there battery voltage?

YES | - | Faulty right power tailgate upper or lower touch sensor; replace it.■
NO | - | Go to Step 8 .

1. Cycle the ignition switch to OFF.

1. Disconnect connector A (26P) from the power tailgate control unit.

1. Check for continuity between the No. 23 terminal of power tailgate control unit connector A (26P) and No. 2 terminal of the right power tailgate upper and lower touch sensor 2P connectors.

Is there continuity?

YES | - | Go to Step 11 .
NO | - | Repair an open in the BLU/WHT (TSER) wire.■

1. Check for continuity between the No. 25 terminal of power tailgate control unit connector A (26P) and No. 1 terminal of the right power tailgate upper and lower touch sensor 2P connectors.

Is there continuity?

YES | - | Faulty power tailgate control unit; replace it.■
NO | - | Repair an open in the BLK/WHT (SEG2) wire.■