Keyless/Power Door Locks/Security System Symptom Troubleshooting - Doors automatically relock 30 seconds after being unlocked with the remote even though a door has been opened
Doors automatically relock 30 seconds after being unlocked with the remote even though a door has been opened
NOTE: Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, troubleshoot the indicated DTC first.

1.
Determine possible failure area (MICU, others):

Determine possible failure area (MICU, others)
?1.
Move the interior light switch to the DOOR position.

?2.
Turn the vehicle to the OFF (LOCK) mode.

?3.
Watch the individual map light and the door indicators on the gauge control module.

Do the individual map light and door indicators come on when the door is open, and go off when the door is closed?

     
YES
     
     
     
     
NO
     
     
     
Go to step 2.
2.
Open wire check (DR DOOR SW, AS DOOR SW, RR DR DOOR SW, RR AS DOOR SW, TAILGATE SW lines):

Open wire check (DR DOOR SW, AS DOOR SW, RR DR DOOR SW, RR AS DOOR SW, TAILGATE SW lines)
?1.
Disconnect the following connectors.
Under-dash fuse/relay box connector N (52P)
Driver's door switch 1P connector
Front passenger's door switch 1P connector
Left rear door switch 1P connector
Right rear door switch 1P connector
Tailgate latch 2P connector

?2.
Check for continuity between test points 1 and 2 respectively.
Driver's door switch
Test condition
Vehicle OFF (LOCK) mode
Under-dash fuse/relay box connector N (52P): disconnected
Driver's door switch 1P connector: disconnected
Test point 1
Under-dash fuse/relay box connector N (52P) No. 23
Test point 2
Driver's door switch 1P connector No. 1

Front passenger's door switch
Test condition
Vehicle OFF (LOCK) mode
Under-dash fuse/relay box connector N (52P)*1: disconnected
MICU connector A (28P)*2: disconnected
Front passenger's door switch 1P connector: disconnected
Test point 1
Under-dash fuse/relay box connector N (52P) No. 34
Test point 2
Front passenger's door switch 1P connector No. 1

Left rear door switch
Test condition
Vehicle OFF (LOCK) mode
Under-dash fuse/relay box connector N (52P): disconnected
Left rear door switch 1P connector: disconnected
Test point 1
Under-dash fuse/relay box connector N (52P) No. 39
Test point 2
Left rear door switch 1P connector No. 1

Right rear door switch
Test condition
Vehicle OFF (LOCK) mode
Under-dash fuse/relay box connector N (52P): disconnected
Right rear door switch 1P connector: disconnected
Test point 1
Under-dash fuse/relay box connector N (52P) No. 37
Test point 2
Right rear door switch 1P connector No. 1

Tailgate latch switch
Test condition
Vehicle OFF (LOCK) mode
Under-dash fuse/relay box connector N (52P): disconnected
Tailgate latch switch 2P connector: disconnected
Test point 1
Under-dash fuse/relay box connector N (52P) No. 26
Test point 2
Tailgate latch switch 2P connector No. 2


Is there continuity?

     
YES
     
     
     
The DR DOOR SW, AS DOOR SW, RR DR DOOR SW, and RR AS DOOR SW wires are OK. Replace the bad door switch.?
     
YES
     
     
     
The TAILGATE SW wire is OK. Go to step 3.
     
NO
     
     
     
Repair an open or high resistance in the wire.?
3.
Open wire check (GND line):

Open wire check (GND line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Tailgate latch switch 2P connector: disconnected
Test point 1
Tailgate latch switch 2P connector No. 1
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The GND wire is OK; replace the tailgate latch.?
     
NO
     
     
     
Repair an open or high resistance in the ground wire or poor ground (G503).?