DTC Troubleshooting: B1380
DTC B1380: Tailgate Closer Unit Neutral 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
B1380 Tailgate Closer Unit Neutral switch circuit malfunction
  

1.
Problem verification:

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


?2.
Open the tailgate with the tailgate outer handle switch.

?3.
Close the tailgate manually.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
B1380 Tailgate Closer Unit Neutral switch circuit malfunction
  

Is DTC B1380 indicated?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
2.
Determine possible failure area (PTG/PTL CLCL line short, others):

Determine possible failure area (PTG/PTL CLCL line short, others)
?1.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
Latch Gear Position Sw. neutral
    

Is data list value ON?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Go to step 5.
3.
Determine possible failure area (power tailgate closer unit, others):

Determine possible failure area (power tailgate closer unit, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Power tailgate closer unit connector B (6P)

?3.
Turn the vehicle to the ON mode.

?4.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
Latch Gear Position Sw. neutral
    

Is data list value ON?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Faulty sector switch; replace the tailgate latch.?
4.
Shorted wire check (PTG/PTL CLCL line):

Shorted wire check (PTG/PTL CLCL 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 closer unit connector B (6P): disconnected
Power tailgate control unit connector A (24P): disconnected
   
Test point 1
Power tailgate control unit connector A (24P) No. 10
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to ground in the wire.?
     
NO
     
     
     
5.
Determine possible failure area (power tailgate closer unit, others):

Determine possible failure area (power tailgate closer unit, others)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Power tailgate closer unit connector B (6P)

?3.
Connect terminals A and B with a jumper wire.
Terminal A
Power tailgate closer unit connector B (6P) (female terminals) No. 2:
Terminal B
Power tailgate closer unit connector B (6P) (female terminals) No. 3:


?4.
Turn the vehicle to the ON mode.

?5.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
Latch Gear Position Sw. neutral
    

Is data list value ON?

     
YES
     
     
     
Faulty sector switch; replace the tailgate latch.?
     
NO
     
     
     
Go to step 6.
6.
Determine possible failure area (PTG/PTL CLCL line, PTG/PTL SEG3 line):

Determine possible failure area (PTG/PTL CLCL line, PTG/PTL SEG3 line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the jumper wire.

?3.
Connect terminals A and B with a jumper wire.
Terminal A
Power tailgate closer unit connector B (6P) (female terminals) No. 3:
Terminal B
Body ground


?4.
Turn the vehicle to the ON mode.

?5.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
Latch Gear Position Sw. neutral
    

Is data list value ON?

     
YES
     
     
     
Go to step 7.
     
NO
     
     
     
Go to step 8.
7.
Open wire check (PTG/PTL SEG3 line):

Open wire check (PTG/PTL SEG3 line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the jumper wire.

?3.
Disconnect the following connector.
Power tailgate control unit connector A (24P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF(LOCK) mode
Power tailgate closer unit connector B (6P): disconnected
Power tailgate control unit connector A (24P): disconnected
   
Test point 1
Power tailgate closer unit connector B (6P) (female terminals) No. 2:
Test point 2
Power tailgate control unit connector A (24P) No. 21


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open or high resistance in the wire.?
8.
Open wire check (PTG/PTL CLCL line):

Open wire check (PTG/PTL CLCL line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the jumper wire.

?3.
Disconnect the following connector.
Power tailgate control unit connector A (24P)

?4.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Power tailgate closer unit connector B (6P): disconnected
Power tailgate control unit connector A (24P): disconnected
   
Test point 1
Power tailgate closer unit connector B (6P) (female terminals) No. 3:
Test point 2
Power tailgate control unit connector A (24P) No. 10


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open or high resistance in the wire.?