Doors Automatically Relock 30 Seconds After Being Unlocked With The Remote Even Though A Door Has Been Opened (2017 2018 2019 2020)

-1. Move the interior light switch to the DOOR position.

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

- 3. Watch the individual map lights and the door indicators on the gauge control module.

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

YES 

Faulty MICU; replace the Driver's under-dash fuse/relay box - Refer to: Driver's Under-Dash Fuse/Relay Box Removal and Installation, or Passenger's Under-Dash Fuse/Relay Box Removal and Installation .

NO 

Go to step 2.

-1. Disconnect the following connectors.

- 2. Check for continuity between test points 1 and 2 respectively.

Driver's door switch 

Test condition	Vehicle OFF (LOCK) mode Driver's under-dash fuse/relay box connector E (44P): disconnected Rear fuse/relay box connector A (49P): disconnected Rear fuse/relay box connector B (36P): disconnected Each door switch 1P connector: disconnected Power tailgate closer unit connector B (6P): disconnected
Test circuit	FR DOOR SW DR
Test point 1	Driver's under-dash fuse/relay box connector E (44P) (female terminals) No. 24:
Test point 2	Driver's door switch 1P connector (female terminals) No. 1:

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

Front passenger's door switch 

Test condition	Vehicle OFF (LOCK) mode Driver's under-dash fuse/relay box connector E (44P): disconnected Rear fuse/relay box connector A (49P): disconnected Rear fuse/relay box connector B (36P): disconnected Each door switch 1P connector: disconnected Power tailgate closer unit connector B (6P): disconnected
Test circuit	FR DOOR SW AS
Test point 1	Driver's under-dash fuse/relay box connector E (44P) (female terminals) No. 25:
Test point 2	Front passenger's door switch 1P connector (female terminals) No. 1:

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

Left rear door switch 

Test condition	Vehicle OFF (LOCK) mode Driver's under-dash fuse/relay box connector E (44P): disconnected Rear fuse/relay box connector A (49P): disconnected Rear fuse/relay box connector B (36P): disconnected Each door switch 1P connector: disconnected Power tailgate closer unit connector B (6P): disconnected
Test circuit	RR DOOR SW DR
Test point 1	Rear fuse/relay box connector B (36P) (female terminals) No. 12:
Test point 2	Left rear door switch 1P connector (female terminals) No. 1:

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

Right rear door switch 

Test condition	Vehicle OFF (LOCK) mode Driver's under-dash fuse/relay box connector E (44P): disconnected Rear fuse/relay box connector A (49P): disconnected Rear fuse/relay box connector B (36P): disconnected Each door switch 1P connector: disconnected Power tailgate closer unit connector B (6P): disconnected
Test circuit	RR DOOR SW AS
Test point 1	Rear fuse/relay box connector B (36P) (female terminals) No. 11:
Test point 2	Right rear door switch 1P connector (female terminals) No. 1:

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

Power tailgate closer unit 

Test condition	Vehicle OFF (LOCK) mode Driver's under-dash fuse/relay box connector E (44P): disconnected Rear fuse/relay box connector A (49P): disconnected Rear fuse/relay box connector B (36P): disconnected Each door switch 1P connector: disconnected Power tailgate closer unit connector B (6P): disconnected
Test circuit	FULL SW
Test point 1	Rear fuse/relay box connector A (49P) (female terminals) No. 9:
Test point 2	Power tailgate closer unit connector B (6P) (female terminals) No. 5:

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

Is there continuity?

YES 

The FR DOOR SW DR, FR DOOR SW AS, RR DOOR SW DR, and RR DOOR SW AS wires are OK. Replace the bad door switch.

YES 

The FULL SW wire is OK. Faulty Power tailgate closer unit.

NO 

Repair an open or high resistance in the wire between the MICU and the door switch/power tailgate closer unit.