Checking electric door lock drives (Honda Civic 7)

Sedan

1. Remove the door trim panel.

2. Disconnect the connector (A).







3. Check the operation of the electric drive by applying battery voltage to the terminals as shown in the tables.

Conclusions		Electric drive
1	2
+	-	LOCK
-	+	UNLOCK

If the operation is not as described, replace the door lock actuator.

Hatchback

1. Remove the door trim panel.

2. Disconnect the connector (A).





3. Check the operation of the electric drive by applying battery voltage to the terminals as shown in the tables.

Table. Checking the central locking remote control unit (models produced before 9/2003.).

Conclusion	Wire color	Verification conditions	In good condition	Possible cause/location of malfunction
1	IN	Constantly	Conductivity between terminal "1" and ground	- Poor ground contact (G502) - Broken wire
2	BI/O	Constantly	Conductivity between terminal "2" and terminal "K2" of the mounting block in the passenger compartment	- Multiplex control unit - Wire break
3	Y	Ignition switch in the "ON" position (II)	At terminal "3" the battery voltage	- Fuse No.10 (7.5 A) (mounting block in the cabin) - Wire break
5	W/R	Constantly	At terminal "5" the battery voltage	- Fuse No.9 (10 A) (mounting block in the underhood space) - Wire break

Table. Checking the central locking remote control unit (models produced since 9/2003.).

Conclusion	Wire color	Verification conditions	In good condition	Possible cause/location of malfunction
1	IN	Constantly	Conductivity between terminal "1" and ground	- Poor ground contact (G502) - Broken wire
2	BI/O	Constantly	Conductivity between terminal "2" and terminal "Y2" of the Multiplex control unit	- Multiplex control unit - Wire break
3	BI/O	Constantly	Conductivity between terminal "2" and terminal "K2" of the mounting block in the passenger compartment	- Mounting block in the cabin (multiplex control unit) - Wire break
4	W/G	Install a jumper between terminals "4" and "7"	The direction indicators are on	-Bad ground contact (G502) -Fuses No.9 (10 A) and No.5 (10 A) (mounting block in the underhood space) - Relay for turn signal interrupter, - Wire break
5	Y	Ignition switch in the "ON" position (II)	At terminal "5" the battery voltage	- Fuse No.10 (7.5 A) (mounting block in the cabin) - Wire break
6	Lg/B	Constantly	Conductivity between terminal "6" and terminal "Y3" of the Multiplex control unit	- Multiplex control unit - Wire break
7	W/R	Constantly	At terminal "7" the battery voltage	- Fuse No.9 (10 A) (mounting block in the underhood space) - Wire break

Conclusions		Electric drive
1	2
+	-	LOCK
-	+	UNLOCK

If the operation is not as described, replace the door lock actuator.