DTC B1378

DTC B1378  : Power Tailgate Right Touch/Pinch sensor circuit malfunction

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

DTC (Power Tailgate Control Unit)

1. Problem verification 1

   -1. Clear the DTCs with the HDS.

   -2. Open the tailgate manually or with the keyless transmitter.

   -3. Close the tailgate with the keyless transmitter or driver's power tailgate switch.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   B1378 Power Tailgate Right Touch/Pinch sensor circuit malfunction

   Is DTC B1378 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. Problem verification 2

   -1. Check for DTCs with the HDS.

   DTC Description	DTC
   B1378 Power Tailgate Right Touch/Pinch sensor circuit malfunction
   B1379 Power Tailgate Left Touch/Pinch sensor circuit malfunction
   B1385 Power Tailgate temperature sensor malfunction

   Any of DTC are indicated at the same time with DTC B1378?

   YES 

   Go to step 3.

   NO 

   Go to step 4.

3. Open wire check (PTG/PTL_SEG2 line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connectors.

   Power tailgate control unit connector B (10P) Right power tailgate pinch sensor 2P connector

   -3. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Power tailgate control unit connector B (10P): disconnected Right power tailgate pinch sensor 2P connector: disconnected
   Test point 1	Power tailgate control unit connector B (10P) No. 8
   Test point 2	Right power tailgate pinch sensor 2P connector (male terminals) No. 2:

   Courtesy of HONDA, U.S.A., INC.

   Is there 1.0 Ω or less?

   YES 

   Replace the power tailgate control unit .

   NO 

   Repair an open or high resistance in the wire.

4. Determine possible failure area (right power tailgate pinch sensor, others)

   -1. Disconnect the following connector.

   Right power tailgate pinch sensor 2P connector

   -2. Turn the vehicle to the ON mode.

   -3. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode Right power tailgate pinch sensor 2P connector: disconnected
   Test point 1	Right power tailgate pinch sensor 2P connector (male terminals) No. 1:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   Replace the right power tailgate pinch sensor .

   NO 

   Go to step 5.

5. Open wire check (PTG/PTL_TSLA line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode Right power tailgate pinch sensor 2P connector: disconnected
   Test point 1	Power tailgate control unit connector B (10P) No. 9
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   Repair an open or high resistance in the wire.

   NO 

   Replace the power tailgate control unit .