DTC Troubleshooting: B1377
DTC B1377: Power Tailgate Inner switch circuit malfunction
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

DTC Description
DTC
B1377 Power Tailgate Inner switch circuit malfunction
  

1.
Problem verification:

Problem verification
?1.
Clear the DTCs with the HDS.


?2.
Open the tailgate with the keyless transmitter.

?3.
Press the power tailgate inside switch for more than 1 second.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
B1377 Power Tailgate Inner switch circuit malfunction
  

Is DTC B1377 indicated?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
2.
Shorted wire check (PTG/PTL CLOSE SW line):

Shorted wire check (PTG/PTL CLOSE SW line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Power tailgate control unit connector A (24P)

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Power tailgate control unit connector A (24P): disconnected
Test point 1
Power tailgate control unit connector A (24P) No. 24
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to ground in the PTG/PTL CLOSE SW wire.?
     
NO
     
     
     
Repair a short to ground in the PTG/PTL SCOM wire.?